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8237 Hub Installation and Planning Guide
Chapter 2. Installing the 8237 ......................................................................... 2-1
Before You Begin ............................................................................................... 2-1
Setup ................................................................................................................. 2-1
Rack-Mounting the 8237 ............................................................................... 2-1
Surface-Mounting the 8237 ........................................................................... 2-3
Installing an Expansion Port .......................................................................... 2-4
Installing and Routing Cables ............................................................................ 2-4
Connecting Cables to 10BASE-T Ports and Expansion Ports ....................... 2-4
Connecting Hubs with Stack Link Cables ...................................................... 2-5
Connecting a Modem or a Null-Modem Cable to the Management Port ....... 2-6
Powering on the 8237 ........................................................................................ 2-7
Chapter 3. 8237 Administration ...................................................................... 3-1
The 8237 User Interface Program ..................................................................... 3-1
Management Using Terminal Emulation Software ........................................ 3-1
Establishing a Session with the 8237 ............................................................ 3-2
Model 001 Management Options ....................................................................... 3-4
Set FEM Status ............................................................................................. 3-5
Model 002 and Model 003 Management Options .............................................. 3-6
Exit ................................................................................................................. 3-7
Restart System .............................................................................................. 3-7
System Information ........................................................................................ 3-7
SNMP Configuration ...................................................................................... 3-8
Segment Configuration ................................................................................ 3-13
Hub Configuration ........................................................................................ 3-15
Port Configuration ........................................................................................ 3-19
Port Backups ............................................................................................... 3-25
Port Security Control ................................................................................... 3-27
TFTP Download ........................................................................................... 3-30
Xmodem Download ..................................................................................... 3-31
User Passwords .......................................................................................... 3-32
Management Port Configuration .................................................................. 3-33
Segment Statistics ....................................................................................... 3-34
Hub Statistics ............................................................................................... 3-35
Port Statistics ............................................................................................... 3-37
Understanding the LEDs .................................................................................. 3-43
Getting New Microcode ................................................................................... 3-46
Management Using Telnet ............................................................................... 3-47
Configuring for SLIP .................................................................................... 3-47
Preparing for SNMP Management ................................................................... 3-48
Setting an IP Address Using BootP ............................................................. 3-48
Chapter 4. Troubleshooting, Installation, and Replacement Procedures .. 4-1
Problem Determination ...................................................................................... 4-1
LED Symptom and Fix Listing ....................................................................... 4-1
Hot-Swapping 8237s ..................................................................................... 4-3
Problem Determination Through the Management Port ................................ 4-3
Sample 1 ....................................................................................................... 4-4
Sample 2 ....................................................................................................... 4-5
Sample 3 ....................................................................................................... 4-6
Installation, Removal, and Replacement Procedures ........................................ 4-8
8237 Hub Replacement ................................................................................. 4-8
Expansion Port Installation and Replacement ............................................... 4-8
RMON Daughter Board Installation and Replacement ................................ 4-10
Summary of Contents for 8237
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