Digital Equipment DECswitch 900EE Operating and maintenance instructions

DECswitch 900EE Router
Installation and Configuration
Part Number: EK-DEBMP-DN.B01
December 1996
This book describes how to install and configure the DECswitch 900EE
module.
Revision/Update Information: This is a revised document.

Digital Equipment Corporation makes no representations that the use of its products in the manner
described in this publication will not infringe on existing or future patent rights, nor do the descriptions
contained in this publication imply the granting of licenses to make, use, or sell equipment or software in
accordance with the description.
Possession, use, or copyingof the software described in this publication is authorized only pursuant to a valid written
license from Digital or an authorized sublicensor.
© Digital Equipment Corporation 1996. All rights reserved. Printed in U.S.A
The following are trademarks of Digital Equipment Corporation: DEC, DEChub, DECnet, DECswitch,
DECconnect, Digital, MultiSwitch, RouteAbout, ThinWire, VAX, VMS, clearVISN, and the Digital logo.
The following are third-party trademarks:
AppleTalk is a registered trademark of Apple Computer, Inc.
Novell and IPX are registered trademarks of Novell, Inc.
All other trademarks and registered trademarks are the property of their respective holders.
FCC Notice — Class A Computing Device:
This equipment generates, uses, and may emit radio frequency energy. The equipment has been type
tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of FCC rules,
which are designed to provide reasonable protection against such radio frequency interference.
Operation of this equipment in a residential area may cause interference in which case the user at his own
expense will be required to take whatever measures may be required to correct the interference. Any
modifications to this device - unless expressly approved by the manufacturer - can void the user's
authority to operate this equipment under part 15 of the FCC rules.
VCCI Notice — Class 1 Computing Device:
This equipment is in the 1st Class category (information equipment to be used in commercial and/or
industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference by
Data Processing Equipment and Electronic Office Machines aimed at preventing radio interference in
commercial and/or industrial areas. Consequently, when used in a residential area or in an adjacent area
thereto, radio interference may be caused to radios and TV receivers. Read the instructions for correct
handling.
CE Notice — Class A Computing Device:
Warning!
This is a Class A product. In a domestic environment, this product may cause radio interference, in which
case the user may be required to take adequate measures.
Achtung!
Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können bei Betrieb dieses Gerätes
Rundfunkstörungen auftreten, in welchen Fällen der Benutzer für entsprechende Gegenmaßnahmen
verantwortlich ist.
Attention!
Ceci est un produit de Classe A. Dans un environment domestique, ce produit risque de créer des
interférences radioélectriques, il appartiendra alors à l’utilisateur de prendre les mesures spécifiques
appropriées.

iii
Contents
Preface
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Purpose of This Document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Organization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .x
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Associated Documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xii
Correspondence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
Documentation Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
Online Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
How to Order Additional Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xv
Safety
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xvii
1 Product Description
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
In this chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
What is the DECswitch 900EE Router? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Hot Swap. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Configuration and Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Routing Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Bridging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Virtual LAN Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Ethernet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
SNMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

iv
EasyStart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
2 Installing the Module
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
In this chapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Module Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Back Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Installing the Module in a DEChub 900 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Task 1: Compare the Power Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Task 2: Seat the Module into the DEChub 900. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Task 3: Verify Initial LED Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Task 4: Connect the Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Task 4 (Cont.): Connect the AUI Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Task 4 (Cont.): Connecting the UTP/STP Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
3 Installing the Setup Port Cable
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
In this chapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Signaling Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Setup Port Device Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Connecting the Setup Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
4 Configuring the Module in a Standalone Unit
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
In this chapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Accessing the Setup Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Using Menus to Setup the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
[1] Restart with Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
[2] Restart with Current Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
[3] Show Current Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
[4] Configure IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
[1] Set SNMP Read/Write Community . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
[2] Set In-Band Interface IP Address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
[3] Set Out-of-Band Interface IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
[4] Set Default Gateway. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

v
[5] Configure Out-of-Band Port . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
[1] Set Port Speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Go To Local Console. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
[6] Go To Local Console (Qconfig) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
[3] Go To Local Console (Commands) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
5 Configuring the Module in a DEChub 900
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
In this chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Accessing the Setup Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
DEChub 900 MultiSwitch Installation Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
[9] Start Redirect Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Using Menus to Setup the Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
[1] Restart with Factory Defaults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
[2] Restart with Current Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
[3] Show Current Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
[4] IP Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
[1] Set SNMP Read/Write Community . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
[2] Set In-Band Interface IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
[3] Set Out-of-Band Interface IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
[4] Set Default Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
Go to Local Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
[5] Go To Local Console (Qconfig) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
[3] Go To Local Console (Commands) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
6 Configuration Commands
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
In this chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Accessing Configuration Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
To Exit and Restart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Configuring Ethernet Port Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Configuring OBM Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Configuring Virtual LANs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Creating, Deleting, and Modifying VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
? (Help) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Create . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Delete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Modify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

vi
Assigning Frame Types to VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Assigning IPX Encapsulation to VLAN Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
7 Monitoring Commands
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
In this chapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Accessing Monitoring Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
To Exit Monitor Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Listing All Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Monitoring Ethernet Port Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Monitoring Virtual Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
Displaying VLAN Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
Listing VLAN Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
Listing a Virtual Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
8 Removing the Module
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
In this chapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Removing the Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Unseating the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
A Problem Solving
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
In this appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
LED Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Normal Powerup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Problem Solving Using LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
B Connector and Pin Assignments
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
In This Chapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Connector Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

vii
10BaseT (8-pin MJ) Port Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-2
AUI (15-pin D-Sub) Port Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-3
H8571-J Adapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-4
H8575-A Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-5
Internal and External Crossover Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-6
C Product Specifications
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1
In this appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1
Operating Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-2
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-4
Acoustical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-5
Index
Figures
Figure 2-1 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Figure 2-2 Back Panel Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Figure 2-3 Module Power Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Figure 2-4 Seating the Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Figure 2-5 AUI Cable Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Figure 2-6 UTP/STP Cable Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Figure 3-1 Device, Cable and Connector Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Figure 8-1 Cable Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Figure 8-2 Unseating the Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
Figure B-1 10BaseT Port Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-2
Figure B-2 AUI Port Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-4
Figure B-3 H8571-J Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-4
Figure B-4 H8575-A Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-5
Figure B-5 External Crossover Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-6
Figure B-6 Internal Crossover Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-6
Tables
Table 2-1 Front Panel LED and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Table 2-2 Back Panel Feature Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Table 6-1 Frame Encapsulation Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Table A-1 Module LED States. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

viii
Table A-2 Problem Solving Using LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
Table B-1 10BaseT Port Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Table B-2 AUI Port Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Table C-1 Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Table C-2 Connectors on the DECswitch 900EE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4
Table C-3 Connectors on the DEChub ONE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4
Table C-4 Acoustical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5
Table C-5 Aktuelle Werte für spezielle Produkt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5

ix
Preface
Overview
Purpose of This Document
This manual describes how to install the DECswitch 900EE Router in a DEChub 900
MultiSwitch or a DEChub ONE docking station. This manual also describes how to
configure the DECswitch 900EE Router software to operate in either a DEChub 900
MultiSwitch or as a standalone module in a DEChub ONE docking station.
Intended Audience
This manual is intended for use by personnel who will install, configure and monitor
the DECswitch 900EE Router.

Organization
x
Organization
This manual is organized as follows.
Chapter Description
1 Provides anoverview of the DECswitch900EE Routerand
describes its features.
2 Describes front and back panel features and provides
instructions for installing the module in a DEChub 900
MultiSwitch.
3 Provides instructions for installing the setup port cable.
4 Provides instructions for configuring the module in a
DEChub ONE.
5 Provides instructions for configuring the module in a
DEChub 900 MultiSwitch.
6 Provides instructions for configuring the module using
commands.
7 Provides instructions for monitoring the module using
commands.
8 Provides instructions for removing the module from a
DEChub 900 MultiSwitch.
A Provides installation-specific troubleshooting information
using the LEDs.
B Provides connector and pin assignment information.
C Provides product specifications.

xi
Conventions
Conventions
Overview This book uses the following conventions.
Convention Description
Bold Boldface type in example indicates user input.
Special Type This special type in examples indicates system output or user
output.
<Return> Indicates that you should press the Return key.

Associated Documents
xii
Associated Documents
The following documents provide information relating to the module. To order any of
the following documents, refer to the directions at the end of this preface.
Title and Order
Number Description
Bridging
Configuration
Guide
AA-QL29D-TE
Describes bridging methods, operational features of
bridging, configuration methods and basic
configurations, and monitoring of bridging software.
Event Logging
System Messages
Guide
AA-QL2AD-TE
Describes messages logged by the Event Logging
System.
Network Interface
Operations
Guide
AA-QL2BD-TE
Describes the configuring and monitoring of the
network interfaces in the Bridge Router Software
bridging router.
Bridge Router
Software Router
Protocols Reference
Guide
AA-QL2CD-TE
Provides detailed reference information about the
micro-operating system structure and the protocols
and interfaces that the bridging routers support.
Bridge Router
Software Routing
Protocols Users
Guide
AA-QL2DD-TE
Explains how to configure and monitor the routing
protocol software.
Bridge Router
Software System
Software Guide
AA-QL2ED-TE
Describes the installation, configuration, and
operation of the Bridge Router Software.
Bridging
Configuration
Guide
AA-QL29D-TE
Describes bridging methods, operational features of
bridging, configuration methods and basic
configurations, and monitoring of bridging software.

xiii
Associated Documents
SNA Configuration
Guide
AA-QU5SB-TE
Describes SNA configuration.
DEChub 900
MultiSwitch Owner’s
Manual
EK-DH2MS-OM
Provides installation, use, security, and troubleshooting
information for the DEChub 900 MultiSwitch.
DEChub ONE
Installation
EK-DEHU2-IN
Provides installation and operation guidelines for
standalone module configuration, including mounting
options and cabling.
DEChub ONE MX
Installation
EK-DEF1H-IN
Provides installation and operation guidelines for
standalone module configuration, including mounting
options and cabling.
clearVISN Installation
AA-QX876B-TK Describes how to install clearVISN software. It includes a list of distribution kit contents, system requirements,
pre-installation considerations, and the installation
procedure.
clearVISN Product
Overview
AA-QX87B-TK
Provides an overview of clearVISN, an explanation of
each clearVISN application, and descriptions of all
concepts necessary to understand and use the
application efficiently.
clearVISN
Configuration and Use
AA-QX88B-TK
Provides information for starting each application,
configuring them (when necessary), and general use
information.
Title and Order
Number Description

Correspondence
xiv
Correspondence
Documentation Comments
If you have comments or suggestions about this document, send them to the Network
Products Business Organization.
Attn.: Documentation Project Manager
FAX: [phone]
E-MAIL: doc_f[email protected]m
Online Services
To locate product specific information, refer to the following online services:
BBS To read the Bulletin Board System, set your modem to 8 bits, no parity, 1 stop bit and
dial 508-486-5777 (U.S.)
WWW The Digital Equipment Corporation Network Products Business Home Page on the
World Wide Web is located at the following addresses:
North America: http://www.networks.digital.com
Europe: http://www.networks.europe.digital.com
Australia: http://www.digital.com.au/networks

xv
How to Order Additional Documentation
How to Order Additional Documentation
To order additional documentation, use the following information:
To Order: Contact:
By Telephone USA (except Alaska, New Hampshire, and Hawaii):
1-800-DIGITAL (1-800-344-4825)
Alaska, New Hampshire, and Hawaii: 1-603-884-6660
Canada: 1-800-267-6215
Electronically
(USA. only) Dial 1-800-DEC-DEMO (For assistance, call 1-800-DIGITAL)
By Mail
(USA and
Puerto Rico)
DIGITAL EQUIPMENT CORPORATION
P.O. Box CS2008
Nashua, New Hampshire 03061
(Place prepaid orders from Puerto Rico with the local Digital
subsidiary: 809-754-7575)
By Mail
(Canada) DIGITAL EQUIPMENT of CANADA LTD. 940 Belfast Road
Ottawa, Ontario, Canada K1G 4C2
Attn.: A&SG Business Manager
Internationally DIGITAL EQUIPMENT CORPORATION
Attn.: A&SG Business Manager
c/o local Digital subsidiary or approved distributor
Internally U.S. Software Supply Business (SSB)
DIGITAL EQUIPMENT CORPORATION
10 Cotton Road
Nashua, New Hampshire 03063

xvii
Safety
Overview
Any warning or caution that appears in this manual is defined as follows:.
WARNING Contains information to prevent personal injury.
CAUTION Contains information to prevent damage to
equipment.
VORSICHT Enthält Informationen, die beachtet werden müssen
um den Benutzer vor Schaden zu bewahren.
ACHTUNG Enthält Informationen, die beachtet werden müssen
um die Gerate vor Schaden zu bewahren
DANGER Signale les informations destinées à prévenir les
accidents corporels.
ATTENTION Signale les informations destinées à prévenir la
détérioration du matériel.
AVISO Contiene información para evitar daños personales.
PRECAUCIÓN Contiene información para evitar daños al equipo.

xviii
The cautions that must be observed for the hardware describedin this manual are listed
below in English, German, French, and Spanish.
CAUTION This action deletes all configured settings and
replaces them with factory default values. All
configuration settings will be lost.
ACHTUNG Bei diesem Vorgang werden alle
Konfigurationseinstellungen gelöscht und die
Werkseinstellungen wieder eingesetzt. Alle
Konfigurationsdaten gehen verloren.
ATTENTION Cette action supprime tous les paramètres de
configuration et les remplace par des valeurs
prédéfinies. Tous les paramètres de configuration
seront perdus.
PRECAUCIÓN Esta intervención borrará todos los parámetros de
configuración y los sustituiráporvalores por defecto
definidos de fábrica. Se perderán todos los
parámetros de configuración.

Product Description 1-1
Chapter 1
Product Description
Overview
IntroductionThis chapter describes the DECswitch 900EE Router product and its features.
In this chapter
Topic Page
What is the DECswitch 900EE Router? 1-2
Features 1-3

What is the DECswitch 900EE Router?
1-2 Product Description
What is the DECswitch 900EE Router?
The DECswitch 900EE Router (also referred to in this manual as the module) provides
multiprotocol routing and switching. This module interconnects networks that have
both routable and nonroutable protocols. It routes some protocols while switching
others.
The module can be configured in the DEChub 900 MultiSwitch or as a standalone unit
into a DEChub ONE docking station (see the DEChub ONE Installation manual).
The DECswitch 900EE Router is available with the following two protocol packages:
•Internet Protocol (IP)
•Multiprotocol (MP)
The IP package supports IP routing and bridging. The Multiprotocol package includes
bridging and supports IP, IPX, AppleTalk Phases I & II, DECnet Phase IV, and
DECnet/OSI protocols.
The DECswitch 900EE Router also provides virtual LAN support, in which the
DECswitch bridges a protocol within a port group while concurrently routing the
protocol between port groups. A port group is a set of switch ports and has a virtual
interface that acts as a single connection on the LAN.
The DECswitch 900EE Router provides the interconnection between six 10 Mb/s
Ethernet LANs.
Ethernet is Digital’s term for its product compatibility with the ISO 8802-3/ANSI/
IEEE 802.3 standards and the Ethernet standards for Carrier Sense Multiple Access
with Collision Detection (CSMA/CD) local area networks (LANs).
TheDECswitch900EERouter standards-complianttechnology(IEEE802.1d,802.1h,
802.1i, 802.2, 802.3) ensures interoperability in multivendor networks.