Cabletron Systems Switch HSIM W87 User Manual

HSIM-W87  
User’s Guide  
HSIM-W87  
CPU  
T3  
TX  
RX  
LNK  
STS  
TELCO  
9032689-02  
 
Only qualified personnel should perform installation  
procedures.  
NOTICE  
Cabletron Systems reserves the right to make changes in specifications and other information  
contained in this document without prior notice. The reader should in all cases consult Cabletron  
Systems to determine whether any such changes have been made.  
The hardware, firmware, or software described in this manual is subject to change without notice.  
IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL,  
INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT  
NOT LIMITED TO LOST PROFITS) ARISING OUT OF OR RELATED TO THIS MANUAL OR  
THE INFORMATION CONTAINED IN IT, EVEN IF CABLETRON SYSTEMS HAS BEEN  
ADVISED OF, KNOWN, OR SHOULD HAVE KNOWN, THE POSSIBILITY OF SUCH  
DAMAGES.  
1998 by Cabletron Systems, Inc., P.O. Box 5005, Rochester, NH 03866-5005  
All Rights Reserved  
Printed in the United States of America  
Part Number: 9032689-02 September 1998  
Cabletron Systems and LANVIEW are registered trademarks of Cabletron Systems, Inc.  
All other product names mentioned in this manual may be trademarks or registered trademarks of  
their respective companies.  
FCC NOTICE  
This device complies with Part 15 of the FCC rules. Operation is subject to the following two  
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any  
interference received, including interference that may cause undesired operation.  
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital  
device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable  
protection against harmful interference when the equipment is operated in a commercial environment.  
This equipment uses, generates, and can radiate radio frequency energy and if not installed in  
accordance with the operator’s manual, may cause harmful interference to radio communications.  
Operation of this equipment in a residential area is likely to cause interference in which case the user  
will be required to correct the interference at his own expense.  
WARNING: Changes or modifications made to this device which are not expressly approved by the  
party responsible for compliance could void the user’s authority to operate the equipment.  
HSIM-W87 User’s Guide  
i
 
Notice  
INDUSTRY CANADA NOTICE  
This digital apparatus does not exceed the Class A limits for radio noise emissions from digital  
apparatus set out in the Radio Interference Regulations of the Canadian Department of  
Communications.  
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables  
aux appareils numériques de la class A prescrites dans le Règlement sur le brouillage radioélectrique  
édicté par le ministère des Communications du Canada.  
VCCI NOTICE  
This is a Class A product based on the standard of the Voluntary Control Council for Interference by  
Information Technology Equipment (VCCI). If this equipment is used in a domestic environment,  
radio disturbance may arise. When such trouble occurs, the user may be required to take corrective  
actions.  
CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT  
IMPORTANT: Before utilizing this product, carefully read this License Agreement.  
This document is an agreement between you, the end user, and Cabletron Systems, Inc. (“Cabletron”)  
that sets forth your rights and obligations with respect to the Cabletron software program (the  
“Program”) contained in this package. The Program may be contained in firmware, chips or other  
media. BY UTILIZING THE ENCLOSED PRODUCT, YOU ARE AGREEING TO BECOME  
BOUND BY THE TERMS OF THIS AGREEMENT, WHICH INCLUDES THE LICENSE AND  
THE LIMITATION OF WARRANTY AND DISCLAIMER OF LIABILITY. IF YOU DO NOT  
AGREE TO THE TERMS OF THIS AGREEMENT, PROMPTLY RETURN THE UNUSED  
PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND.  
ii  
HSIM-W87 User’s Guide  
 
Notice  
CABLETRON SOFTWARE PROGRAM LICENSE  
1.  
LICENSE. You have the right to use only the one (1) copy of the Program provided in this  
package subject to the terms and conditions of this License Agreement.  
You may not copy, reproduce or transmit any part of the Program except as permitted by the  
Copyright Act of the United States or as authorized in writing by Cabletron.  
2.  
3.  
OTHER RESTRICTIONS. You may not reverse engineer, decompile, or disassemble the  
Program.  
APPLICABLE LAW. This License Agreement shall be interpreted and governed under the laws  
and in the state and federal courts of New Hampshire. You accept the personal jurisdiction and  
venue of the New Hampshire courts.  
EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY  
1.  
EXCLUSION OF WARRANTY. Except as may be specifically provided by Cabletron in  
writing, Cabletron makes no warranty, expressed or implied, concerning the Program (including  
its documentation and media).  
CABLETRON DISCLAIMS ALL WARRANTIES, OTHER THAN THOSE SUPPLIED TO  
YOU BY CABLETRON IN WRITING, EITHER EXPRESSED OR IMPLIED, INCLUDING  
BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND  
FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THE PROGRAM, THE  
ACCOMPANYING WRITTEN MATERIALS, AND ANY ACCOMPANYING HARDWARE.  
2.  
NO LIABILITY FOR CONSEQUENTIAL DAMAGES. IN NO EVENT SHALL  
CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER  
(INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS,  
PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, SPECIAL,  
INCIDENTAL, CONSEQUENTIAL, OR RELIANCE DAMAGES, OR OTHER LOSS)  
ARISING OUT OF THE USE OR INABILITY TO USE THIS CABLETRON PRODUCT,  
EVEN IF CABLETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH  
DAMAGES. BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR  
LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR  
ON THE DURATION OR LIMITATION OF IMPLIED WARRANTIES, IN SOME  
INSTANCES THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO  
YOU.  
UNITED STATES GOVERNMENT RESTRICTED RIGHTS  
The enclosed product (a) was developed solely at private expense; (b) contains “restricted computer  
software” submitted with restricted rights in accordance with Section 52227-19 (a) through (d) of the  
Commercial Computer Software - Restricted Rights Clause and its successors, and (c) in all respects  
is proprietary data belonging to Cabletron and/or its suppliers.  
For Department of Defense units, the product is licensed with “Restricted Rights” as defined in the  
DoD Supplement to the Federal Acquisition Regulations, Section 52.227-7013 (c) (1) (ii) and its  
successors, and use, duplication, disclosure by the Government is subject to restrictions as set forth in  
subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at  
252.227-7013. Cabletron Systems, Inc., 35 Industrial Way, Rochester, New Hampshire 03867-0505.  
HSIM-W87 User’s Guide  
iii  
 
Notice  
iv  
HSIM-W87 User’s Guide  
 
CHAPTER 1  
1.4.4 Priority Queuing.............................................................. 1-6  
CHAPTER 2  
INSTALLATION  
2.2.1 Installing the HSIM-W87 in an Interface Module ............ 2-2  
2.3 Connecting the HSIM-W87 to the Network.................................. 2-6  
CHAPTER 3  
CHAPTER 4  
MANAGEMENT  
4.1 Local Management...................................................................... 4-1  
4.2 Network Tools.............................................................................. 4-3  
4.2.1 Commands ..................................................................... 4-4  
4.2.2 Built-in Commands ......................................................... 4-6  
4.2.3 Special Commands....................................................... 4-13  
4.3 Sample IMUX Configuration...................................................... 4-14  
HSIM-W87 User’s Guide  
v
 
Contents  
CHAPTER 5  
5.1.2 Investigating Software Configuration Problems .............5–3  
APPENDIX A  
A.1 Physical Properties ..................................................................... A-1  
A.2 Environmental Requirements...................................................... A-1  
A.3 Regulatory Compliance............................................................... A-2  
APPENDIX B  
APPENDIX C  
TYPICAL CONFIGURATION  
WAN TERMS AND ACRONYMS  
vi  
HSIM-W87 User’s Guide  
 
CHAPTER 1  
INTRODUCTION  
Welcome to the Cabletron Systems HSIM-W87 User’s Guide. This  
manual describes the HSIM-W87 and provides information concerning  
features, installation, the use of management, troubleshooting, and  
specifications.  
Important Notice  
Depending on the firmware version used in the HSIM-W87, some  
features described in this document may not be supported. Refer to the  
Release Notes shipped with the HSIM-W87 to determine which features  
are supported.  
A general working knowledge of Wide Area Networking (WAN),  
including T1 and T3 Networking, Ethernet and data communications  
networks, and their physical layer components is helpful when installing  
this device.  
The HSIM-W87 has one T3 port, which consists of two BNC connectors,  
a transmit and a receive port. Figure 1-1 shows the HSIM-W87.  
HSIM-W87  
T3  
TX  
RX  
LNK  
STS  
CPU  
TELCO  
Figure 1-1 HSIM-W87  
1.1  
USING THIS MANUAL  
Reading through this manual completely will help you understand the  
features and capabilities of the HSIM-W87. The following list provides  
an overview of each section of this manual:  
Chapter 1, Introduction, outlines the contents of this manual, describes  
the HSIM-W87 features and concludes with a web site address where  
related manuals can be obtained.  
HSIM-W87 User’s Guide  
1-1  
 
           
Chapter 1: Introduction  
Chapter 2, Installation, describes how to install an HSIM-W87 into an  
The term “host platform” is used to describe the interface  
module, or standalone device, into which the HSIM-W87 can  
NOTE  
be installed.  
Chapter 3, LANVIEW LEDs, describes how to use the HSIM-W87  
Chapter 4, Management, describes the Network Tools needed for  
Chapter 5, Troubleshooting, describes some of the common  
Appendix A, Specifications, lists the operating specifications and  
regulatory compliance of the HSIM-W87.  
Appendix B, Typical Configuration, displays possible configurations for  
the HSIM-W87.  
Appendix C, WAN Terms and Acronyms, provides a glossary of some  
terms and acronyms used in this manual.  
1.2  
OVERVIEW  
The HSIM-W87 extends the functionality of certain Cabletron Systems  
platforms by providing an interface for Wide Area Network (WAN) DS3  
services. The HSIM-W87 is a High Speed Interface Module (HSIM) used  
to provide WAN services using the SmartSwitch series of products as a  
platform. The HSIM-W87 has a physical DS3 interface, providing up to  
28 separate logical DS1 connections. The 28 T1 circuits are all capable of  
acting either as a single 45 Mbps full duplex data circuit or as individual  
T1 circuits within a Layer 2 Inverse Multiplexing (IMUX) group.  
The typical configuration is a head-end WAN aggregation point for up to  
28 T1s into a single WAN physical interface. The HSIM-W87 is able to  
uplink any combination of single T1s or multiple T1 IMUX groups to the  
backbone.  
1-2  
HSIM-W87 User’s Guide  
 
 
Overview  
The HSIM-W87 has its own i960 HD microprocessor used to process data  
packets, provide simple configuration, Inverse Multiplexer functionality,  
and statistics processing. The SmartSwitch host platform provides the  
required logical IP Host services. The HSIM-W87 is designed to be  
installed in any Cabletron Systems product that supports the High Speed  
Interface Module.  
The HSIM-W87 operates in two modes:  
Switching  
IMUX  
The first mode, switching, is the default mode. The HSIM-W87 forwards  
data packets received by the host platform out through the logical DS1  
interfaces. It also forwards packets received in the DS1 interfaces to or  
through the host. The default and only layer 2 WAN protocol used with  
the HSIM-W87 is raw HDLC.  
The host platform may operate in 802.1D bridging, 802.1Q  
VLAN, or SecureFast mode.  
NOTE  
Multiplexer (IMUX) functionality to aggregate multiple DS1 connections  
into single higher bandwidth WAN connections. In order to operate in this  
mode, the user will simply need to configure the appropriate IMUX  
groups containing the DS1 connections.  
Along with the built-in management features (Network Tools) described  
in Chapter 4, the HSIM-W87 can be managed using SNMP, and statistical  
data can be accessed via SNMP by referencing the interface group defined  
in RFC-1213.  
HSIM-W87 User’s Guide  
1-3  
 
Chapter 1: Introduction  
1.3  
DATA FLOW IN THE HSIM-W87  
The T3 port receives the DS3 data through the coaxial interface. A T3  
framer/Multiplexer strips off the T3 framing and provides 28 individual  
T1 data streams. The T1 data streams are then terminated by T1 framers,  
which provide an HDLC bit stream to the HDLC controller. The  
controller receives data packets from each of the bit streams and places  
them in a memory subsystem. An onboard CPU examines the packet and  
notifies the host of its arrival. Finally, a Cabletron proprietary ASIC  
transfers the data to the host platform.  
This process is followed in reverse when a packet is transmitted from the  
host platform out the T3 port. The host platform notifies the HSIM-W87  
when a packet is coming and transfers the packet to the memory. The  
HDLC format is applied to the data; then the data is framed to a T1  
format, and passed to the framer/ Multiplexer. The T1 data is multiplexed  
with other T1 streams and is transmitted out through the T3 interface.  
1.4  
FEATURES  
Data Transfer Rates of 45 Mbps in full duplex, when running all 28  
T1s carrying continuous data traffic of 128-byte packets or larger.  
High-level Data Link Control (HDLC) protocol  
T1 Inverse Multiplexing (IMUX)  
WAN IP Priority Queuing functionality  
DS1 Alarm Thresholds  
SNMP support  
DS1 and DS3 MIB Support  
LANVIEW LEDs  
1.4.1  
Connectivity  
The HSIM-W87 module supports WAN technology using a DS3  
interface, and supports 28 live full duplex T1 connections. The  
HSIM-W87 channelizes the T3 down to the DS1 level. The HSIM-W87  
has an integrated M13 MUX.  
1-4  
HSIM-W87 User’s Guide  
 
     
Features  
The primary function of the HSIM-W87 is to provide LAN to WAN  
access. WAN physical connectivity will be supported through the use of a  
T3 interface with an unbalanced 75 ohm coaxial cable pair. LAN to WAN  
connectivity will be supported through HDLC and T1 Inverse  
Multiplexing (IMUX).  
The HSIM-W87 interoperates with those Cabletron Systems WAN  
products that support raw HDLC as the WAN protocol. This support is  
limited to the CyberSWITCH product line which supports HDLC:  
CSX400 – Version 02.00.15 or higher  
HSIM-W6 – Version 02.00.15 or higher  
HSIM-W84 – Version 02.00.xx or higher  
HSIM-W85 – Version 02.00.xx or higher  
1.4.2  
HDLC  
The High-level Data Link Control (HDLC) protocol is used in  
conjunction with the Inverse Multiplexing (IMUX) feature to conserve a  
user’s WAN bandwidth between two Cabletron Systems products, over a  
point-to-point connection. Cabletron Systems products such as the  
HSIM-W6, HSIM-W84, HSIM-W85, HSIM-W87, and CSX400 must be  
in use on both ends of the WAN link for these functions to work. The  
HDLC (RAW) protocol reduces the amount of overhead information that  
needs to be contained within each data packet to direct it to its destination.  
This decreased packet overhead provides the IMUX functions with more  
bandwidth to transfer user data.  
1.4.3  
Inverse Multiplexing (IMUX)  
Cabletron Systems Inverse Multiplexing (IMUX) feature provides  
enhanced throughput for users by doing the following:  
The IMUX function evenly distributes a data packet stream from the  
LAN interface through multiple full T1 WAN interfaces on the  
HSIM-W87.  
Data packet streams received by the WAN interfaces on the other end  
of the WAN links are then recombined, ordered, and transmitted to the  
LAN interface.  
HSIM-W87 User’s Guide  
1-5  
 
   
Chapter 1: Introduction  
The IMUX function is configurable using the Network Tools  
command, imux, described in Chapter 4.  
Cabletron Systems products that support Inverse Multiplexing  
NOTE  
(IMUX), such as the HSIM-W87, HSIM-W6, CSX400,  
HSIM-W84, and HSIM-W85, must exist on both ends of the  
WAN link for the IMUX function to work. All bridging and  
switching functions, such as 802.1D, SecureFast VLAN, and  
802.1Q are able to run as normal on the host platform when  
using the IMUX function on the HSIM-W87.  
1.4.4  
Priority Queuing  
WAN IP Priority Queuing is used to prioritize IP packets from a specified  
network, such as management packets which are necessary to the  
operation of the network, and routers that depend on protocols with tight  
timing, such as RIP, do not time out. The prioritized packets do not  
eliminate other traffic on the network, but are held in a special queue, so  
that they are not discarded during oversubscribed traffic peaks. Priority  
Queuing can be enabled in management, using Network Tools. Refer to  
the wanpq command in the Management chapter.  
1.4.5  
DS1 Alarm  
Using the DS1 Error Threshold Alarm Monitor provides a means of  
setting error thresholds and notifying the user of potential DS1 problems  
with SNMP trap events.  
The ds1alarm Monitor feature can be enabled in management, using  
Network Tools. Refer to the ds1alarm command in the Management  
chapter.  
1.4.6  
SNMP and MIB Support  
With the SNMP support, the MIBs supported by the HSIM-W87 include:  
RFC 1406 – Definitions of Managed Objects for the DS1 and E1  
Interface Types  
RFC 1407 – Definitions of Managed Objects for the DS3/E3 Interface  
Type  
1-6  
HSIM-W87 User’s Guide  
 
     
Document Conventions  
RFC 1213 (MIBII) support for the Interface Table  
Cabletron Enterprise MIBs  
Refer to the Release Notes included with the host platform for a list of all  
MIBs supported by the HSIM-W87. For information about how to extract  
Center (Section 1.7).  
1.4.7  
LANVIEW Diagnostic LEDs  
Cabletron Systems provides a visual diagnostic and monitoring system  
called LANVIEW. The HSIM-W87 LANVIEW LEDs help you quickly  
identify status of the device. Chapter 3 provides information on the  
HSIM-W87 LEDs.  
1.5  
DOCUMENT CONVENTIONS  
The following conventions are used throughout this document:  
Note symbol. Calls the reader’s attention to any item of  
information that may be of special importance.  
NOTE  
Caution symbol. Contains information essential to avoid  
damage to the equipment.  
!
CAUTION  
Electrical Hazard Warning symbol. Warns against an action  
that could result in personal injury or death due to an electrical  
hazard.  
Tip symbol. Conveys helpful hints concerning procedures or  
actions.  
TIP  
HSIM-W87 User’s Guide  
1-7  
 
   
Chapter 1: Introduction  
bold type  
Denotes either a user input or a highlighted screen selection.  
RETURN  
Indicates either the ENTER or RETURN key, depending on your  
keyboard.  
ESC  
Indicates the keyboard Escape key.  
Indicates the keyboard space bar key.  
SPACE bar  
BACKSPACE Indicates the keyboard backspace key.  
arrow keys  
[-]  
Refers to the four keyboard arrow keys.  
Indicates the keyboard – key.  
DEL  
Indicates the keyboard delete key.  
italic type  
Italic type emphasizes important information, indicates variables,  
and indicates complete document titles.  
n.nn  
A period in numerals signals the decimal point indicator. (e.g.,  
1.75 equals one and three fourths, or the Decimal Dotted Notation  
(DDN) for an IP address.  
x
Indicates the generic use of a letter (e.g., xxx indicates any  
combination of three alphabetic characters).  
n
[]  
Indicates the generic use of a number (e.g., 19nn indicates a  
four-digit number in which the last two digits are unknown).  
In the Local Management screens, the brackets indicate that a  
value may be entered or selected. In the format descriptions in the  
Network Tools section, required arguments are enclosed in [].  
<>  
In the format descriptions in the Network Tools section, optional  
arguments are enclosed in <>.  
1.6  
RELATED DOCUMENTATION  
The documentation for the host platform in which the HSIM-W87 is to be  
installed provides additional information about the setup of the  
HSIM-W87. The host documentation is not listed below, as there can be  
many different host platforms. This user’s guide references procedures in  
these documents, where appropriate, but does not repeat them.  
Documents can be obtained on the World Wide Web in Adobe Acrobat  
Portable Document Format (PDF) at the following site:  
1-8  
HSIM-W87 User’s Guide  
 
 
Getting Help  
1.7  
GETTING HELP  
For additional support related to this device or document, contact the  
Cabletron Systems Global Call Center:  
World Wide Web  
Phone  
(603) 332-9400  
Internet mail  
FTP  
anonymous  
Login  
Password  
your email address  
To send comments or suggestions concerning this document, contact the  
Cabletron Systems Technical Writing Department via the following  
email address: [email protected]  
Make sure to include the document Part Number in the email message.  
Before calling the Cabletron Systems Global Call Center, have the  
following information ready:  
Your Cabletron Systems service contract number  
A description of the failure  
A description of any action(s) already taken to resolve the problem  
(e.g., changing mode switches, rebooting the unit, etc.)  
The serial and revision numbers of all involved Cabletron Systems  
products in the network  
A description of your network environment (layout, cable type, etc.)  
Network load and frame size at the time of trouble (if known)  
The device history (i.e., have you returned the device before, is this a  
recurring problem, etc.)  
Any previous Return Material Authorization (RMA) numbers  
HSIM-W87 User’s Guide  
1-9  
 
   
Chapter 1: Introduction  
1-10  
HSIM-W87 User’s Guide  
 
CHAPTER 2  
INSTALLATION  
To install the HSIM-W87 the following items are required:  
Antistatic wrist strap (shipped with the HSIM-W87)  
Phillips screwdriver  
Before attempting to use the HSIM-W87 you should be familiar  
with the IEEE 802.3 Specifications, and T1 and T3 Networking.  
NOTE  
2.1  
UNPACKING THE HSIM-W87  
The HSIM-W87 and the host platform are sensitive to static  
discharges. Use an antistatic strap and observe all static  
precautions during this procedure. Failure to do so could result  
in damage to the HSIM-W87 or host platform.  
!
CAUTION  
Unpack the HSIM-W87 as follows:  
1. Remove the HSIM-W87 from the shipping box.  
2. Leave the module in its antistatic bag until you are ready to install it.  
3. Attach the antistatic wrist strap (refer to the instructions on the  
antistatic wrist strap package for proper use).  
4. After removing the module from its antistatic bag, visually inspect the  
device. If you notice any signs of damage, contact the Cabletron  
Systems Global Call Center immediately. Refer to Section 1.7 for  
instructions. Save the antistatic bag in the event the module must be  
reshipped or relocated.  
HSIM-W87 User’s Guide  
2-1  
 
         
Chapter 2: Installation  
2.2  
INSTALLING THE HSIM-W87  
Only qualified personnel should install or service this unit.  
An HSIM-W87 can be installed in any Cabletron Systems device that  
supports HSIM technology (e.g., 2H252-25R, 2E42-27, 6E132-25).  
Refer to the release notes for the version of firmware running  
on the Cabletron Systems host platform to ensure that the  
NOTE  
HSIM-W87 is supported.  
The following subsections provide instructions for installing an  
HSIM-W87 in a host platform. Refer to the specific interface module or  
standalone device document for exact HSIM slot and connector locations.  
2.2.1  
Installing the HSIM-W87 in an Interface Module  
To install an HSIM-W87 in an interface module that supports HSIM  
technology, perform the following steps.  
1. Note the ports of the interface module that have cables attached to  
them. Write down the ports and label the cables to make it easier to  
reattach the network properly after the installation. Then disconnect  
those cables from the ports.  
2. Attach the antistatic wrist strap (refer to the instructions outlined on  
the antistatic wrist strap package).  
3. If the interface module is installed in a chassis, unlock the top and  
bottom plastic locking tabs of the module faceplate.  
4. Remove the module from the chassis, and place it down flat with the  
internal components facing up.  
5. Remove and save the two faceplate mounting screws securing the  
HSIM coverplate and remove the coverplate. See Figure 2-1.  
2-2  
HSIM-W87 User’s Guide  
 
     
Installing the HSIM-W87  
HSIM Coverplate  
Faceplate Mounting Screws  
Host Platform  
2555_03  
Figure 2-1 Removing the HSIM Coverplate  
6. Refer to Figure 2-2 and place the HSIM-W87 behind the module  
faceplate.  
HSIM-W87 User’s Guide  
2-3  
 
 
Chapter 2: Installation  
Standoff Screws  
Connector  
Connector  
Cutaway view of connector  
HSIM-W87  
LNK  
STS  
T3  
TX  
RX  
TELCO  
HSIM-W87  
CPU  
SP  
HSIM  
Pins  
Standoffs  
Faceplate Mounting Screws  
Interface Module  
or Device  
mounting  
Figure 2-2 Installing the HSIM-W87  
7. Align the connector on the HSIM-W87 with the pins on the module.  
Ensure that the HSIM-W87 connector aligns with the module  
connector pins to prevent bending the pins. This can damage  
both the HSIM-W87 and the module.  
!
CAUTION  
8. Press down firmly on the connector area of the HSIM-W87 until the  
connector slides all the way onto the pins. Ensure that the standoffs on  
the interface module align with the standoff screw holes on the  
HSIM-W87.  
2-4  
HSIM-W87 User’s Guide  
 
 
Installing the HSIM-W87  
9. Secure the HSIM-W87 to the module faceplate using the mounting  
screws saved in Step 5.  
10. Secure the HSIM-W87 to the module standoffs using the standoff  
screws included in the HSIM-W87 shipping materials.  
11. Reinstall the interface module in the chassis.  
12. Reattach the network cabling to the interface module.  
2.2.2  
Installing the HSIM-W87 in a Standalone Device  
To install an HSIM-W87 into a standalone device (e.g., 2H252-25R)  
perform the following steps:  
1. Power down the device and remove the power cord.  
2. Note the ports that have cables attached to them. Write down the ports  
and label the cables to make it easier to reattach the network properly  
after the installation. Then disconnect those cables from the ports.  
To install the HSIM-W87 in a standalone device the device  
must first be powered down. Ensure that you remove the power  
cord and ONLY the screws required to remove the chassis  
cover.  
3. Attach the antistatic wrist strap (refer to the instructions outlined on  
the antistatic wrist strap package).  
4. Remove the standalone device chassis cover (refer to your specific  
standalone device documentation for instructions on removing the  
chassis cover).  
5. Refer back to Figure 2-1 and remove the two faceplate mounting  
screws and the HSIM coverplate. Save the screws.  
6. Refer back to Figure 2-2 and place the HSIM-W87 behind the  
standalone device faceplate.  
7. Align the HSIM connector of the HSIM-W87 with the pins on the  
standalone device.  
HSIM-W87 User’s Guide  
2-5  
 
   
Chapter 2: Installation  
Ensure that the HSIM-W87 connector aligns with the device  
connector pins to prevent bending the pins. This can damage  
both the HSIM-W87 and the device.  
!
CAUTION  
8. Press down firmly on the HSIM-W87 until the connector slides all the  
way onto the HSIM pins. Ensure that the standoffs on the standalone  
device align with the standoff screw holes on the HSIM-W87.  
9. Secure the HSIM-W87 to the module faceplate using the mounting  
screws saved in Step 5.  
10. Secure the HSIM-W87 to the module standoffs using the standoff  
screws included in the HSIM-W87 shipping materials.  
Ensure that the chassis cover is in place before reconnecting  
the power cord.  
11. Replace the chassis cover on the standalone device, reconnect the  
power cord, and reconnect the standalone device to the network.  
2.3  
The HSIM-W87 is connected to the carrier’s DS3 service using coaxial  
cable. The 75 Ohm unbalanced coaxial cable may be run a maximum of  
450 feet. For typical configurations for the HSIM-W87, see Appendix B.  
2.4  
HSIM-W87 SETUP  
See Chapter 3 for information on the LEDs, Chapter 4 on how to set up  
the HSIM-W87 in management, and Chapter 5 for Troubleshooting.  
2-6  
HSIM-W87 User’s Guide  
 
   
CHAPTER 3  
LANVIEW LEDs  
3.1  
LANVIEW LEDS  
This chapter describes how to use the LANVIEW LEDs to monitor the  
HSIM-W87 status and diagnose HSIM-W87 problems. Figure 3-1 shows  
the location of the HSIM-W87 LEDs.  
Link  
HSIM-W87  
T3  
TX  
RX  
LNK  
STS  
CPU  
TELCO  
Status  
CPU  
w87_LEDs  
Figure 3-1 HSIM-W87 LANVIEW LEDs  
The terms flashing, blinking, and solid used in Table 3-1  
indicate the following:  
NOTE  
Flashing indicates an irregular LED pulse.  
Blinking indicates a steady LED pulse (approximately 50% on  
and 50% off).  
Solid indicates a steady LED light. No pulsing.  
HSIM-W87 User’s Guide  
3-1  
 
           
Chapter 3: LANVIEW LEDs  
Table 3-1 HSIM-W87 LEDs  
LED  
Color  
Definition  
Off  
Power Off  
Processor  
(CPU)  
Green (solid)  
Red (solid)  
Red  
Fully operational  
System in reset mode (temporary)  
No Link or Receive signal  
Traffic on at least one port  
Link but sync may not be present  
Normal  
Link (LNK)  
Amber  
Green  
Off  
Red  
Red Alarm  
Status  
(STS)  
Green (blinking)  
Amber  
Receiving Blue Alarm  
Yellow Alarm  
Amber (blinking)  
Port is performing diagnostics  
3-2  
HSIM-W87 User’s Guide  
 
 
CHAPTER 4  
MANAGEMENT  
This chapter describes Local Management and the Network Tools utility.  
Local Management allows access to statistics screens that apply to the  
HSIM-W87 through the host platform. Network Tools allows access to a  
command set from which you can configure and manage the HSIM-W87.  
This chapter provides the following information:  
Overview of Local Managment, Section 4.1  
Network Tools used with the HSIM-W87, Section 4.2  
Sample IMUX configuration, Section 4.3  
4.1  
LOCAL MANAGEMENT  
Access to Local Management screens and Network Tools is  
NOTE  
obtained by using Local Management on the host platform.  
Refer to the host platform user’s guide to establish a Local  
Management connection, and for information on the screens.  
Make sure that the following requirements have been met before  
accessing the HSIM-W87 through Local Management:  
A management terminal is properly configured and connected, either  
locally or using Telnet, to the host platform in which the HSIM-W87  
resides. Refer to the host platform document for further information.  
In order to view the HSIM-W87 statistics screens, you must navigate  
through a series of Local Management screens via the host platform.  
Figure 4-1 shows a typical hierarchy of screens that you would navigate  
through in order to reach the HSIM-W87 screens. The lines shown in  
boldface indicate a typical path used to access the HSIM-W87 statistics  
screens.  
HSIM-W87 User’s Guide  
4-1  
 
           
Chapter 4: Management  
General Configuration  
Device  
Configuration  
Menu  
SNMP Community Names Configuration  
SNMP Traps Configuration  
System Resources Information  
Flash Download Configuration  
Password  
Port Configuration  
Menu  
Ethernet Interface  
Configuration  
HSIM/VHSIM  
Configuration  
802.1 Configuration  
Menu  
Device  
Menu  
Port Redirect  
Configuration  
Switch Configuration  
Flow Control  
Configuration  
802.1Q VLAN  
Configuration Menu  
SmartTrunk  
Configuration  
Device/VLAN  
Configuration  
Broadcast  
Suppression  
Configuration  
Port Assignment  
Configuration  
Port Filtering  
Configuration  
VLAN Forwarding  
Configuration  
802.1p Priority  
Configuration Menu  
Port Priority  
Configuration  
Advanced Port  
Priority  
Configuration  
Device  
Statistics  
Menu  
Switch Statistics  
Interface Statistics  
RMON Statistics  
HSIM/VHSIM  
Statistics  
Network Tools  
2555hier  
Figure 4-1 Typical Hierarchy of Local Management Screens  
Different versions of the firmware may display a different  
hierarchy. Check the host platform manual if the hierarchy  
displayed does not match the one in Figure 4-1.  
NOTE  
The HSIM/VHSIM Statistics menu option underneath the  
Device Statistics Menu applies to the non-Ethernet HSIMs or  
VHSIMs such as ATM or FDDI, but not the HSIM-W87.  
4-2  
HSIM-W87 User’s Guide  
 
 
Network Tools  
Important Notice  
The HSIM-W87 statistics that are accessed using the Switch and  
Interface Statistics screens are not explained in this manual. Refer to the  
applicable host platform manual for details. “T3 Interface” and “T1  
Interface” will be displayed as the name of the HSIM-W87 interface in the  
statistics screens.  
4.2  
NETWORK TOOLS  
The Network Tools utility allows management of objects in the  
HSIM-W87 Management Information Bases (MIBs). MIBs are databases  
of objects used for managing the device and configuring the HSIM-W87.  
The commands within the MIB Navigator allow the user to view and  
modify a device’s objects.  
The host platform contains either the Network Tools utility, or the MIB  
Navigator utility. They are essentially the same tool, with some minor  
differences depending on the platform. They will both be referred to as  
Network Tools in this document, and there is no difference in their use for  
the purpose of this document. Using Network Tools may be a more  
convenient method for a user to configure the HSIM-W87 than using the  
MIBs in some circumstances. Full functionality is still available by using  
the MIBs. The host platform has a set of functions for Network Tools that  
are used on that platform. The following additions to the Network Tools  
utility from the WAN perspective are specific to the HSIM-W87, and can  
only be used when a HSIM-W87 is installed in the platform.  
imux – support for configuration and monitoring of the Inverse  
Multiplexer (ctwan-multi-imux-mib.txt, Revision 1.00.00)  
ds1alarm – support for ds1 alarm monitoring (ctremote-mib.txt,  
Revision 1.00.02, Ds1Alarms branch)  
wanpq – support for Wan IP Priority Queuing (ctremote-mib.txt,  
Revision 1.00.02, ctIPPQFilters branch)  
dsx1 – support for RFC 1406 statistics and configuration  
dsx3 – support for RFC 1407 statistics and configuration  
Only the above commands, that are particular to the HSIM-W87, will be  
described in the following sections. The host platform’s manual describes  
the other commands that are not particular to the HSIM-W87. Refer to the  
host platform manual for information on the other commands.  
HSIM-W87 User’s Guide  
4-3  
 
   
Chapter 4: Management  
4.2.1  
Commands  
The Network Tools function resides on the host platform and allows the  
user to access and manage network devices. Figure 4-2 shows the  
Network Tools Help screen. Screens may be slightly different depending  
on the host platform and the version of firmware.  
To access the Network Tools screen, access Local Management, then use  
the arrow keys to navigate to and highlight the NETWORK TOOLS  
menu item in the appropriate menu screen and press ENTER. The  
Network Tools Help screen displays. Refer to the host platform manual  
for details on accessing Local Management.  
Type help at the prompt to list all the commands that are  
available for the device in the current operational mode. If help  
is needed with a specific command, type help and the  
<command>. Use lower case characters when entering  
commands in Network Tools. Uppercase characters may be  
specified for some of the options. A command used incorrectly  
(wrong syntax or case) will prompt a display of the correct  
usage.  
TIP  
-> help  
Commands Available to the User:  
Built in Commands:  
bridge  
ping  
defroute  
reset  
arp  
netstat  
show  
traceroute  
telnet  
soft_reset  
imux  
link_trap  
wanpq  
ds1alarm  
dsx3  
dsx1  
SPECIAL:  
done, quit, or exit - Exit from the Network Tools.  
For help with a specific command, type 'help <command>'.  
->  
090829  
Figure 4-2 Network Tools Help Screen  
4-4  
HSIM-W87 User’s Guide  
 
   
Network Tools  
The Network Tools functions are performed using a series of commands.  
Entering commands in Network Tools involves typing the command at the  
Network Tools prompt, adding any required parameters, and pressing  
ENTER to execute the command.  
There are two categories of commands in the command set.  
Built-in Commands – Allow the user to access and manage network  
devices. The commands for the HSIM-W87 are imux, ds1alarm,  
wanpq, dsx1, and dsx3. The other commands listed in Figure 4-2 are  
described in the host platform manual.  
Special Commands – Allow the user to exit from Network Tools. The  
commands are done, exit, and quit. All three commands perform the  
exact same function.  
The conventions used in describing the commands in Network  
Tools are as follows:  
NOTE  
Arguments enclosed by [ ] are required.  
Arguments enclosed by < > are optional.  
In the following command examples, the information entered by  
the user is shown in bold Helvetica font.  
To abort the output or interrupt a process, press the CONTROL  
key and c key simultaneously, designated as ^C here.  
The commands are presented in the following format:  
command:  
Syntax:  
Shows the required command format. It indicates where  
arguments, if any, must be specified.  
Description: Briefly describes the command and its uses.  
Options:  
Lists any additional fields in the appropriate format that  
may be added to the command.  
Example:  
Shows an example of how to use the command.  
HSIM-W87 User’s Guide  
4-5  
 
Chapter 4: Management  
4.2.2  
Built-in Commands  
The built-in commands listed in this section activate configuration and  
viewing functions on the HSIM-W87.  
imux:  
Cabletron Systems products that support Inverse Multiplexing  
(IMUX), such as the HSIM-W87, HSIM-W6, CSX400, and  
NOTE  
HSIM-W84, must exist on both ends of the WAN link for the  
IMUX function to work. All bridging and switching functions,  
such as 802.1D, SecureFast VLAN, and 802.1Q are able to run  
as normal on the host platform when using the IMUX function  
on the HSIM-W87.  
Syntax:  
imux <IMUXID>  
imux <IMUXID> -[ea | da]  
imux <IMUXID> -[eg | dg] <GROUPID>  
imux <IMUXID> -[ac | dc] <GROUPID>  
<INTERFACENUM>  
Description: imux is used to combine multiple WAN channels into  
logical inverse multiplexing (IMUX)groups. Once the  
IMUX is configured, data will be evenly distributed over  
all of the logical channels configured.  
<IMUXID> - A unique value identifying an element in a  
sequence of Inverse Multiplexer Applications which  
belong to an IP host.  
<GROUPID> - A unique value identifying an element in  
a sequence of groups which belong to a WAN Inverse  
Multiplexer Application.  
<INTERFACENUM> - The MIB II ifIndex value used to  
represent a WAN channel that has an appropriate datalink  
protocol associated with it.  
4-6  
HSIM-W87 User’s Guide  
 
 
Network Tools  
Options:  
imux <IMUXID> (with no options) displays status  
information.  
-ea enables the Inverse Multiplexer Application  
designated by IMUXID.  
-da disables the Inverse Multiplexer Application  
designated by IMUXID.  
-eg <GROUPID> enables the Inverse Multiplexer group  
designated by GROUPID.  
-dg <GROUPID> disables the Inverse Multiplexer group  
designated by GROUPID.  
-ac <GROUPID> <INTERFACENUM> Adds the WAN  
channel designated by INTERFACENUM to the Inverse  
Multiplexer group designated by GROUPID.  
-dc <GROUPID> <INTERFACENUM> Deletes the  
WAN channel designated by INTERFACENUM from the  
Inverse Multiplexer group designated by GROUPID.  
Example:  
-> imux 1 -ac 1 29  
# Inverse Multiplexer channel with ifIndex 29 added to group 1  
-> imux 1  
#
# WAN Inverse Multiplexer 1 Status: Disabled  
#
#
Inverse  
WAN  
Available Xmit Byte  
BW Count  
(bits/sec) (bytes)  
Inverse  
# Multiplexer Group Physical  
# ID Admin Status Number  
Multiplexer Channel  
ID IfIndex Status  
#-------------------------------------------------------------------------------------------------------------  
#
#
#
1
Disabled  
22  
1536000  
0
1
29  
INACTIVE  
# Number of WAN Inverse Multiplexer Groups currently programmed : 1  
#
# Number of WAN Inverse Multiplexer Channels currently programmed : 1  
imuxsetup1  
HSIM-W87 User’s Guide  
4-7  
 
Chapter 4: Management  
command:  
Syntax:  
wanpq  
wanpq  
wanpq -ea  
wanpq -da  
wanpq -aip <IPADDRESS>  
wanpq -dip <IPADDRESS>  
Description: WAN IP Priority Queuing is used to prioritize IP packets  
from a specified IP address. <IPADDRESS> - The  
Internet Protocol (IP) address being added to or removed  
from the Wide Area Network Priority Queue database.  
Options:  
wanpq (with no options) displays information on the  
status of the WAN priority queue.  
-ea enables the WAN Priority Queue Application.  
-da disables the WAN Priority Queue Application.  
-aip <IPADDRESS> Adds the IP address designated by  
IPADDRESS to the WAN Priority Queue database.  
-dip <IPADDRESS> Deletes the IP address designated by  
IPADDRESS from the WAN Priority Queue database.  
Example:  
-> wanpq  
#
#WAN Priority Queue Status: Disabled  
#
#Maximum number of address entries: 16  
#
#Current number of address entries programmed: 0  
#
-> wanpq -ea  
#
# WAN Priority Queue Application enabled.  
->  
2689_1  
4-8  
HSIM-W87 User’s Guide  
 
Network Tools  
command:  
Syntax:  
ds1alarm  
ds1alarm  
ds1alarm -[ea | da] <WANID>  
ds1alarm -[et | dt] <WANID>  
ds1alarm -sec <WANID> <VALUE>  
ds1alarm -sei <WANID> <VALUE>  
ds1alarm -mr <WANID>  
Description: The ds1alarm function allows the user to set error  
thresholds in order to set traps and monitor the operation  
and recovery of a device.  
<WANID> This option is either ALL to apply command  
to all DS1 circuits, or the specific WAN physical identifier  
associated with the DS1 circuit.  
Options:  
ds1alarm (with no options) displays information on the  
error thresholds.  
-ea enables the WAN DS1 Alarms Admin.  
-da disables the WAN DS1 Alarms Admin.  
-et enables the WAN DS1 Alarms Traps Feature.  
-dt disables the WAN DS1 Alarms Traps Feature.  
-sec sets the Errored Seconds Threshold Count to  
VALUE.  
-sei sets the Errored Seconds Threshold Interval to  
VALUE.  
-mr manually recovers a DS1 link that has exceeded a  
threshold.  
Example:  
-> ds1alarm  
#--------------------------------------------------------------------------------------------------------------------------  
DS1 Alarm Thresholds  
#
#--------------------------------------------------------------------------------------------------------------------------  
# HSIM  
DS1  
DS1  
ID  
Admin  
Status  
Trap  
ES  
ES  
#
#
ID  
Index  
Admin  
Count  
Interval  
(minutes)  
#--------------------------------------------------------------------------------------------------------------------------  
#
#
#
#
#
#
#
1
1
1
1
1
1
1
1
2
3
4
5
6
7
29  
30  
31  
32  
33  
34  
35  
Disabled  
Disabled  
Disabled  
Disabled  
Disabled  
Disabled  
Disabled  
Enabled  
Enabled  
Enabled  
Enabled  
Enabled  
Enabled  
Enabled  
100  
100  
100  
100  
100  
100  
100  
6
6
6
6
6
6
6
----More----  
2689_2  
HSIM-W87 User’s Guide  
4-9  
 
Chapter 4: Management  
command:  
Syntax:  
dsx1  
dsx1  
dsx1 near  
dsx1 near <1..96>  
dsx1 linetype <ESF|D4> <line>  
dsx1 loopback <no|payload|line> <line>  
dsx1 txclksrc <loop|local> <line>  
dsx1 <line>  
dsx1 <line>  
<ES|SES|SEFS|UAS|CSS|PCV|LES|BES|DM|LCV>  
Description: This command allows the user to read the contents of  
several tables defined in RFC 1406.  
“line”, as an option, refers to the number of an instance of  
a physical T1 interface. A different “line” is in the choice  
between no, payload, and line for the loopback function.  
The acronyms in caps refer to error types defined in the  
RFC. Refer to RFC1406 for more information.  
<1..96> is the number of a previous 15 minute  
measurement interval in the table. Interval “1” is always  
the latest interval to have taken place, with interval “2” as  
the next latest, etc.  
Near indicates the device on your side of the WAN line.  
Options:  
dsx1 (with no options) lists a summary of the DS1  
configuration.  
dsx1 near lists a summary of the statistics for the device  
on your side of the WAN line.  
dsx1 near <1..96> lists a summary of the statistics for the  
device on your side of the WAN line for a specific time  
interval.  
dsx1 linetype <ESF|D4> <line> allows a choice of either  
ESF or D4 linetype (framing).  
dsx1 loopback <no|payload|line> <line> allows a choice  
of either no, payload, or line loopback.  
dsx1 txclksrc <loop|local> <line> allows a choice of  
either loop or local transmit clock source.  
dsx1 <line> displays the setup for the line specified.  
dsx1 <line>  
<ES|SES|SEFS|UAS|CSS|PCV|LES|BES|DM|LCV>  
allows the choice of performance parameters.  
4-10  
HSIM-W87 User’s Guide  
 
Network Tools  
Example:  
-> dsx1  
DS1 1406 Configuration:  
LIne  
Time  
Intvl  
Type  
Coding  
LoopCfg  
Status  
TxClk  
FDL  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
504  
504  
504  
504  
504  
504  
504  
504  
504  
504  
505  
505  
505  
505  
505  
505  
505  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
ESF  
ESF  
ESF  
ESF  
ESF  
ESF  
ESF  
ESF  
ESF  
ESF  
ESF  
ESF  
ESF  
ESF  
ESF  
ESF  
ESF  
B8ZS  
B8ZS  
B8ZS  
B8ZS  
B8ZS  
B8ZS  
B8ZS  
B8ZS  
B8ZS  
B8ZS  
B8ZS  
B8ZS  
B8ZS  
B8ZS  
B8ZS  
B8ZS  
B8ZS  
NoLoop  
NoLoop  
NoLoop  
NoLoop  
NoLoop  
NoLoop  
NoLoop  
NoLoop  
NoLoop  
NoLoop  
NoLoop  
NoLoop  
NoLoop  
NoLoop  
NoLoop  
NoLoop  
NoLoop  
OtherFailure loop  
OtherFailure loop  
OtherFailure loop  
OtherFailure loop  
OtherFailure loop  
OtherFailure loop  
OtherFailure loop  
OtherFailure loop  
OtherFailure loop  
OtherFailure loop  
OtherFailure loop  
OtherFailure loop  
OtherFailure loop  
OtherFailure loop  
OtherFailure loop  
OtherFailure loop  
OtherFailure loop  
Fdlnone  
Fdlnone  
Fdlnone  
Fdlnone  
Fdlnone  
Fdlnone  
Fdlnone  
Fdlnone  
Fdlnone  
Fdlnone  
Fdlnone  
Fdlnone  
Fdlnone  
Fdlnone  
Fdlnone  
Fdlnone  
Fdlnone  
----More----  
2689_2  
command:  
Syntax:  
dsx3  
dsx3  
dsx3 near  
dsx3 near <1..96>  
dsx3 linetype <M23|CBITPARITY> <line>  
dsx3 loopback <no|payload|line> <line>  
dsx3 txclksrc <loop|local> <line>  
dsx3 <line>  
dsx3 <line>  
<PES|PSES|SEFS|UAS|LCV|PCV|LES|CCV|CES|CSES  
>
Description: Allows the user to read the contents of several tables  
defined in RFC 1407.  
“line” refers to the number of an instance of a physical  
DS3 interface. A different “line” is in the choice between  
no, payload, and line for the loopback function. The  
acronyms in caps refer to error types defined in the RFC.  
<1..96> is the number of a previous 15 minute  
measurement interval. Interval “1” is always the latest  
interval to have taken place, with interval “2” as the next  
latest, etc.  
HSIM-W87 User’s Guide  
4-11  
 
Chapter 4: Management  
Options:  
dsx3 (with no options) lists the dsx3 configuration.  
dsx3 near lists a summary of the near end setup statistics.  
dsx3 near <1..96> lists a summary of the near end setup  
statistics for the interval specified.  
dsx3 linetype <M23|CBITPARITY> <line> allows a  
choice between the types of parities, M23 and Cbit for the  
linetype of the line specified.  
dsx3 loopback <no|payload|line> <line> allows a choice  
of loopback between the listed choices for the line  
specified.  
dsx3 txclksrc <loop|local> <line> allows a choice of  
either loop or local transmit clock source.  
dsx3 <line> displays a summary of the line specified.  
dsx3 <line>  
<PES|PSES|SEFS|UAS|LCV|PCV|LES|CCV|CES|CSES  
> allows a choice of performance parameters for the line  
specified, accumulated in 15 minute intervals.  
Example:  
-> dsx3  
Line  
27  
->  
Time  
680  
Intvl  
1
Type  
CBPar  
Coding  
B3ZS  
LoopCfg  
NoLoop  
Status  
TxClk  
LossOfSignallocal  
2689_5  
4-12  
HSIM-W87 User’s Guide  
 
Network Tools  
4.2.3  
Special Commands  
done, quit, exit:  
Syntax:  
done  
quit  
exit  
Description: The done, exit, or quit command enables the user to exit  
from Network Tools and return to the Main Menu screen.  
All three commands perform the same function.  
Options:  
Not Applicable  
Example:  
-> done  
051472  
To nd the MIB II interface indexes assigned to the ds1  
channels used in the IMUX group, utilize the dsx1 and  
TIP  
ds1alarm commands. With the dsx1 command, the interface  
numbers are in the column under “line” in the display. When the  
ds1alarm command is used, the interface numbers, as well as  
the HSIM ID and the ds1 index, can be seen for verification.  
HSIM-W87 User’s Guide  
4-13  
 
 
Chapter 4: Management  
4.3  
SAMPLE IMUX CONFIGURATION  
The following is a sample of a common configuration.  
To perform an IMUX configuration for the setup shown in Figure B-1, in  
Appendix B, follow these steps:  
1. To add channels to an IMUX group:  
Enter: imux 1 -ac 1 29  
(this adds interface 29 to the group id 1 in the imux id 1)  
To display the setup so far:  
Enter: imux 1  
Figure 4-3 shows the imux setup for group id 1 so far:  
-> imux 1 -ac 1 29  
# Inverse Multiplexer channel with ifIndex 29 added to group 1  
-> imux 1  
#
# WAN Inverse Multiplexer 1 Status: Disabled  
#
#
Inverse  
WAN  
Available Xmit Byte  
BW Count  
(bits/sec) (bytes)  
Inverse  
# Multiplexer Group Physical  
# ID Admin Status Number  
Multiplexer Channel  
ID IfIndex Status  
#-------------------------------------------------------------------------------------------------------------  
#
#
#
1
Disabled  
22  
1536000  
0
1
29  
INACTIVE  
# Number of WAN Inverse Multiplexer Groups currently programmed : 1  
#
# Number of WAN Inverse Multiplexer Channels currently programmed : 1  
imuxsetup1  
Figure 4-3 Adding Channels to an IMUX Group  
4-14  
HSIM-W87 User’s Guide  
 
     
Sample IMUX Configuration  
2. After all the desired channels have been added to the group (four were  
put in the group in this example), the group must be enabled:  
Enter: imux 1 -eg 1  
The screen shows the response to the imux command to enable  
group 1 in Figure 4-4.  
-> imux 1  
#
# WAN Inverse Multiplexer 1 Status: Disabled  
#
#
Inverse  
WAN  
Available Xmit Byte  
BW Count  
(bits/sec) (bytes)  
Inverse  
# Multiplexer Group Physical  
# ID Admin Status Number  
Multiplexer Channel  
ID IfIndex Status  
#-------------------------------------------------------------------------------------------------------------  
#
#
#
#
#
#
1
1
1
1
Disabled  
Disabled  
Disabled  
Disabled  
21  
22  
23  
24  
1536000  
1536000  
1536000  
1536000  
0
0
0
0
1
2
3
4
28  
29  
30  
31  
INACTIVE  
INACTIVE  
INACTIVE  
INACTIVE  
# Number of WAN Inverse Multiplexer Groups currently programmed : 1  
#
# Number of WAN Inverse Multiplexer Channels currently programmed : 4  
-> imux 1 -eg 1  
# Inverse Multiplexer group 1 enabled.  
imuxsetup2  
Figure 4-4 Enabling the IMUX Group  
3. The next step is to enable the imux application for imux 1:  
Enter: imux 1 -ea  
The screen in Figure 4-5 displays the response to the command.  
HSIM-W87 User’s Guide  
4-15  
 
 
Chapter 4: Management  
->imux 1 -ea  
# Inverse Multiplexer Application 1 enabled.  
-> imux 1  
# WAN Inverse Multiplexer 1 Status: Enabled  
#
#
Inverse  
WAN  
Available Xmit Byte  
BW Count  
(bits/sec) (bytes)  
Inverse  
# Multiplexer Group Physical  
# ID Admin Status Number  
Multiplexer Channel  
ID IfIndex Status  
#-------------------------------------------------------------------------------------------------------------  
#
#
#
#
#
#
1
1
1
1
Enabled  
Enabled  
Enabled  
Enabled  
21  
22  
23  
24  
1536000  
1536000  
1536000  
1536000  
0
0
0
0
1
2
3
4
28  
29  
30  
31  
INACTIVE  
INACTIVE  
INACTIVE  
INACTIVE  
# Number of WAN Inverse Multiplexer Groups currently programmed : 1  
#
# Number of WAN Inverse Multiplexer Channels currently programmed : 4  
->  
imuxsetup3  
Figure 4-5 Enabling the IMUX Application  
This configuration is complete. More groups can be added as needed. The  
commands dsx1 and/or ds1alarm can be used to verify the interface  
numbers configured. Done, exit, or quit may be used after verification to  
leave Network Tools.  
4-16  
HSIM-W87 User’s Guide  
 
 
CHAPTER 5  
TROUBLESHOOTING  
5.1  
TROUBLESHOOTING THE HSIM-W87  
Problems in setup can occur in hardware, software, or firmware setups.  
The following sections detail some of the problems encountered and the  
possible solution. If a problem persists, contact the Cabletron Systems  
Global Call Center. Refer to Section 1.7.  
5.1.1  
Hardware Troubleshooting  
No LEDs on  
Check the host platform to see if it is powered up.  
Check that the HSIM-W87 has been connected correctly, that the  
connectors have no bent pins.  
Link (LNK) LED is OFF  
The WAN interface is not configured for operation. Power is off or the  
HSIM-W87 is not connected properly.  
Link (LNK) LED is RED The WAN interface is configured, but there  
is no signal indicating that a valid connection is present on the WAN  
interface.  
Check that the device at the other end of the segment is powered up.  
Use management to make sure that both WAN interfaces, local and  
remote, are configured correctly.  
Check to ensure that the correct cable is being used.  
Check to ensure that the cable has continuity and is installed correctly.  
The cabling between the HSIM-W87 and the M13 should be checked,  
and the cabling between the M13 and the devices at the far end should  
also be checked.  
Check with the WAN Service Provider to ensure that the circuit has  
been configured by them and is active.  
HSIM-W87 User’s Guide  
5-1  
 
           
Chapter 5: Troubleshooting  
It may be necessary to provide proof of proper configuration of  
NOTE  
your WAN connection. Service Providers typically require proof  
that the customer’s equipment is configured correctly before  
checking their own configuration.  
Status (STS) LED is OFF  
The port is operating normally. If it is not, and this LED is OFF, the port  
may be disabled. Use management to make sure that the WAN interface  
on the HSIM-W87 is configured correctly.  
Status (STS) LED is RED  
A RED alarm indicates that the WAN connection is not receiving proper  
framing or has lost framing from the remote device.  
Verify the framing, zero suppression, and T3 clock source.  
Verify the use of proper cabling on the WAN connection.  
Status (STS) LED is AMBER  
The device is in Yellow alarm mode. A Yellow alarm indicates that the  
HSIM-W87 is receiving proper framing from the Telco, but the Telco is  
not receiving proper framing.  
Check for faulty or incorrect cabling between the Telco and the  
HSIM-W87.  
Request that the Telco verify the configuration and operation of the  
circuit.  
Status (STS) LED is AMBER (blinking)  
Device is in test mode.  
The HSIM-W87 is running its Power-up Diagnostic Tests.  
Loopback Testing is underway on a WAN circuit. Loopback testing  
can be initiated by the Telco.  
5-2  
HSIM-W87 User’s Guide  
 
Troubleshooting the HSIM-W87  
5.1.2  
Investigating Software Configuration Problems  
Software problems usually occur when your software configuration  
contains incomplete or incorrect information.  
Device not forwarding packets  
Ensure that the proper DS1 transmit clock source is configured using  
the dsx1 command in Network Tools.  
When connecting two ds1 devices, one must be tx clock master  
(local timing) and the other must be slave (loop timing).  
NOTE  
Check the DS1 line type. The default is ESF but some devices may be  
configured for D4. Ensure that the local and remote DS1 devices are  
configured with the same line (Framing) type.  
Ensure that the DS1 loopback is not configured (default is none) using  
the dsx1 command.  
5.1.3  
Problems with the Firmware Image  
The firmware image for the HSIM-W87 is supported on the host platform,  
therefore, if there is a problem with the firmware image for the  
HSIM-W87, the image for the platform must be downloaded. Refer to the  
host platform user’s guide for information on this procedure.  
HSIM-W87 User’s Guide  
5-3  
 
   
Chapter 5: Troubleshooting  
5-4  
HSIM-W87 User’s Guide  
 
APPENDIX A  
SPECIFICATIONS  
This chapter lists the specifications and regulatory requirements for the  
HSIM-W87. Cabletron Systems reserves the right to change these  
specifications at any time without notice.  
A.1 PHYSICAL PROPERTIES  
WAN Interface  
DS3 T3 port  
Physical Interface  
Cable Type  
BNC connectors  
75 Ohm unbalanced Coaxial cable  
450 feet (137 m)  
Maximum Link Distance  
9310039-10ft  
9310039-xx  
T3 Cable Part Number  
Microprocessor  
Power Supply  
i960HD66  
+5V supplied by host device  
18.75 Watts maximum  
Power Consumption  
8 MB of DRAM Local memory  
4 MB of DRAM Shared memory  
Memory  
4.8H x 20.6W x 28.7D (cm)  
1.9H x 8.1W x 11.3D (in)  
Dimensions  
Weight  
0.45 kg (1.0 lb)  
200,000 hours  
MTBF (Predicted)  
A.2 ENVIRONMENTAL REQUIREMENTS  
Operating Temperature  
Storage Temperature  
5°C to 40°C (41°F to 104°F)  
-30°C to 90°C (-22°F to 194°F)  
5% to 95% (non-condensing)  
Operating Relative Humidity  
HSIM-W87 User’s Guide  
A-1  
 
           
Appendix A: Specifications  
A.3 REGULATORY COMPLIANCE  
This equipment meets the following safety and electromagnetic  
compatibility (EMC) requirements:  
UL 1950 and CSA C22.2 No. 950  
Safety  
Electromagnetic  
Compatibility  
(EMC)  
FCC Part 15, EN 55022, CSA C108.8, EN 50082-1,  
VCCI V-3, 89/336/EEC, and AS/NZS 3548  
A-2  
HSIM-W87 User’s Guide  
 
 
APPENDIX B  
Typical configuration is a head-end WAN aggregation point for up to 28  
combination of single T1s or multiple T1 IMUX groups to the backbone.  
The HSIM-W87 has an internal M13, and the Telco side M13, as shown  
in Figure B-1, is supplied for CPE aggregation. The HSIM-W84 in the  
diagram can be any device that is compatible with the HSIM-W87, which  
runs HDLC WAN protocol.  
In Figure B-1, the 2E42-27 is used as an example platform. It  
could be any platform into which the HSIM-W87 can be  
NOTE  
installed.  
HSIM-W87 User’s Guide  
B-1  
 
       
Appendix B: Typical Configuration  
2E42-27 with an HSIM-W87  
T3  
Telco Cloud  
M13  
28 T1 Lines  
2E42-27s with HSIM-W84s  
CSX400  
CSX400  
CSX400  
T1 Configuration  
configW87  
IMUX Configuration  
Figure B-1 HSIM-W87 IMUX Operational  
B-2  
HSIM-W87 User’s Guide  
 
 
APPENDIX C  
WAN TERMS AND ACRONYMS  
This appendix provides definitions for WAN terms and acronyms.  
AIS — Alarm Indication Signal, The DS3 AIS is framed with “stuck  
stuffing”. This implies that it has a valid M-subframe alignment bits,  
M-frame alignment bits, and P bits. The information bits are set to a  
1010... sequence, starting with a one (1) after each M-subframe alignment  
bit., M-frame alignment bit, X bit, P bit, and C bit. The C bits are all set to  
zero giving what is called “stuck stuffing”. The X bits are set to one. The  
DS3 AIS defect is declared after DS3 AIS is present in contiguous  
M-frames for a time equal to or greater than T, where  
0.2 ms<=T<=100 ms. The DS3 AIS defect is terminated after AIS is  
absent in contiguous M-frames for a time equal to or greater than T.  
AMI — Alternate Mark Inversion, line coding used with both E-1 and T1.  
A digital 1 is encoded as a “mark” (pulse) and a 0 is encoded as a “space.”  
The marks alternate polarity.  
ANSI — American National Standards Institute, the US member of the  
ISO.  
Bearer (B) Channel A 64 Kbps channel used with BRI and PRI  
ISDN services.  
BPV — Bipolar Violation, the occurrence of two successive pulses of the  
same polarity in a bipolar signal.  
B3ZS — Bipolar with 3 Zero Substitution, an AMI line code with the  
substitution of a unique code to replace occurrences of three consecutive  
zero signal elements.  
B8ZS — Binary 8-Zero Substitution, line coding utilized with ESF  
(Expanded Super Frame) using a bipolar DS1 signal. Insures the ones  
density requirement for digital T-carrier facilities in the public network,  
while allowing 64 Kbps clear data per channel. This encoding method is  
not supported by some Telcos.  
BER — Bit Error Ratio, errored bits over total bits, should be <10–7 for  
transmission lines.  
HSIM-W87 User’s Guide  
C-1  
 
       
Appendix C: WAN Terms and Acronyms  
BRI — Basic Rate Interface, minimum rate ISDN subscriber interface,  
provides 2 B + 1 D channels (two 64 Kbps “B” (Bearer) channels and one  
16 Kbps “D” (Data) signaling channel for a total of 144 Kbps).  
BRIM — Cabletron Systems Bridge Router Interface Module. Expands  
the physical connectivity of a host platform.  
CPE — Customer Premises Equipment.  
CRC — Cyclic Redundancy Check, an algorithm or process used to  
identify corrupted packets in the transmission link.  
CSU — Channel Service Unit, a device that terminates the local  
loop/digital channel on a customer’s (DSU) premises. The CSU connects  
to a DSX-1 interface on the CPE.  
DCE — Data Communications Equipment, a device such as a modem  
that connects the communications circuit with the end device (see DTE).  
CPE — Customer Premises Equipment, Telecommunications  
equipment on the customer site, such as CSU/DSUs, PBXs, etc., that  
reside past the network interface.  
Data (D) Channel A 16 Kbps channel used with BRI and PRI  
services for signaling and control.  
D4 — D4 Framing, a popular framing format in T1. Uses 12 T1 Frames  
to identify both the channel and the signaling bit.  
DI — Drop and Insert, a function provided on the Cabletron Systems  
WPIM-DI which allows the user to map timeslots that are not being used  
to another WAN device.  
DLCI — Data Link Connection Identifier, a unique virtual circuit  
identifier used in Frame Relay. Identifies a given frame as being from a  
particular logical link. The DLCI has only local significance.  
DSU — Digital Service Unit, converts RS-232 or other terminal  
interfaces to DSX-1 (T1) interface.  
DS0 — Digital Signal, level 0, a standard 64,000 bit/second channel.  
Synonymous with “Timeslot.”  
DS1 — Digital Signal level one, the rate of transmission for a T1 line,  
running at 1.544 Mbps.  
DS3 — 28 T1s.  
C-2  
HSIM-W87 User’s Guide  
 
WAN Terms and Acronyms  
DSX-1 — Short-haul version of DS1(coaxial cable being used as the  
media defines it as short-haul) by definition, coaxial cable is short-haul.  
DSX-3 — Short-haul version of DS3 (coaxial cable being used as the  
media defines it as short-haul) by definition, coaxial cable is short-haul.  
DTE — Data Terminal Equipment, equipment that originates and  
terminates data transmission such as a computer or printer (see DCE).  
E-1 — European digital signal level 1. Similar to T1 but provides 32  
channels (2.048 Mbps) instead of 24 channels (1.544 Mbps).  
ESF — Extended Super Frame. A new T1 framing standard (see D4  
framing) that uses 24 T1 frames, thus allowing individual identification of  
the channel and signaling bits.  
EXZ — Excessive Zeros, an EXZ is the occurrence of any zero string  
length equal to or greater than 3 for B3ZS, or greater than 4 for HDB3.  
Fractional T1 Use of a portion (less than the full 24 channels) of a T1  
line.  
Frame Relay A network protocol that allows for many point-to-point  
virtual connections over a single access channel.  
HDB3 — High Density Bipolar 3, used with E-1, a bipolar coding  
method that does not allow more than 3 consecutive zeros.  
HDLC — High-Level Data Link Control, layer 2 (link layer) full-duplex  
protocol derived from SDLC.  
INV. HDLC A form of zero suppression in which all zeros in the  
HDLC packet are changed to ones and all ones are changed to zeros.  
ISDN — Integrated Services Digital Network. Allows point-to-point  
connections at 64 Kbps or 128 Kbps when necessary and disconnects the  
line when not in use. With this service the user only pays for the time  
connected.  
JBZS — Jam Bit-Zero Suppression, a form of zero suppression that  
places a one in the seventh bit of a timeslot. Reduces the effective  
throughput to 56 Kbps.  
HSIM-W87 User’s Guide  
C-3  
 
Appendix C: WAN Terms and Acronyms  
LCV — Line Coding Violation, a count of both BPVs and EXZs  
occurring over the accumulation period. An EXZ increments the LCV by  
one regardless of the length of the zero string.  
LEX — LAN Extender, a Cisco Systems protocol used to internetwork a  
host-based router with a remote switch.  
LMP — Link Management Protocol, used in Frame Relay. Allows the  
device to gather information about the DLCIs (Data Link Connection  
Identifiers) See T1.617-D, Q.933-A.  
Local Timing Timing for digital transmission circuit is internally  
generated by a source within the equipment. Usually used for short haul  
private lines. In this case one CSU must be set for Local (internal) timing  
and the CSU at the other end of the line must be set for Loop (recovered)  
timing to create a master-slave situation.  
Loop Timing Timing for digital transmission circuit is recovered  
from the received data, not generated internally by a source within the  
equipment. This is the typical situation when using public lines. Also may  
be referred to as clock slave timing.  
LLB — Line Loop Back, a full T1 loopback on D4 or ESF framed lines.  
LOS — Loss of Signal, DS3 signal where a predetermined amount of  
pulses without polarity are deemed a defect.  
M13 — (pronounced M-one-three) DS1 into a DS3 multiplexer.  
MIM — Media Interface Module, Cabletron Systems products designed  
to fit in a Multi Media Access Center (MMAC) hub.  
MUX — Multiplexer, an electronic device that allows two or more  
signals to pass over one communications circuit.  
NI — Network Interface.  
OOF — Out of Frame, a DS3 OOF defect is detected when any three or  
more errors in sixteen or fewer consecutive F-bits occur within a DS3  
M-frame. An OOF defect may also be called a Severely Errored Frame  
(SEF) defect. An OOF defect is cleared when reframe occurs. A DS3 Loss  
of Frame (LOF) failure is declared when the DS3 OOF defect is  
consistent for 2 to 10 seconds. The DS3 OOF defect ends when reframe  
occurs. The DS3 LOF failure is cleared when the DS3 OOF defect is  
absent for 10 to 20 seconds.  
C-4  
HSIM-W87 User’s Guide  
 
WAN Terms and Acronyms  
PLB — Payload Loop Back, ESF loopback including the facilities  
datalink.  
Point of Presence The point between the carrier provided equipment  
and services and the customer provided equipment and services.  
PPP — Point-to-Point Protocol, provides a method for transmitting  
datagrams over serial point-to-point links.  
PRI — Primary Rate Interface, an ISDN service providing 23 “B”  
(Bearer) channels of 64 Kbps and one 64 Kbps “D” (Data) channel for  
signaling and control.  
PVC — Permanent Virtual Circuit, a virtual circuit that provides the  
equivalent of a dedicated private line service.  
Q.933-A — Q.933 Annex A, an ITU link management protocol  
specification used in Frame Relay.  
RAI — Remote Alarm Indicator, is declared in C-bit Parity DS3  
applications, after detecting the Yellow Alarm Signal on the alarm  
channel.  
SDLC — Synchronous Data Link Control, layer 2 (link layer) protocol  
developed by IBM for SNA connectivity. Basis for HDLC.  
SEFS — Severely Errored Framing Seconds, is a second with one or  
more OOF errors or a detected incoming AIS.  
SNA — Systems Network Architecture, data communication network  
architecture developed by IBM in the 1970’s.  
T1 — A Bell System term that refers to the physical carrier, or system of  
transmission media and regenerators, used to transmit a digital signal at  
1.544 Mbps.  
T1.617-D — T1.617 Annex D, an ANSI link management protocol  
specification used in Frame Relay.  
TDM — Time Division Multiplexing, a technique in which separate data  
or voice signals are transmitted simultaneously over a single  
communications medium based on time interleaving.  
Timeslot — A standard 64,000 bit/second channel. Synonymous with  
DS0 (Digital Signal, level 0).  
HSIM-W87 User’s Guide  
C-5  
 
Appendix C: WAN Terms and Acronyms  
UAS — Unavailable Seconds, the number of seconds that the DS3  
interface is unavailable.  
WAN — Wide Area Network, a network spanning a large geographic  
area.  
WPIM — WAN Physical Interface Module, Cabletron Systems modules  
that provide connectivity/functionality for WAN modules such as the  
BRIM-W6.  
C-6  
HSIM-W87 User’s Guide  
 

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