Installation Manual

3. Troubleshooting
Introducing Router Troubleshooting Features . . . . . . . . . . . . . 3-2
Basic Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . 3-3
Interpreting LED Error Patterns . . . . . . . . . . . . . . . . . . . . 3-4
Interpreting ERROR Messages on the HP AdvanceStack
Router 200 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
General Procedure for Self-Test Failures . . . . . . . . . . . . . . 3-6
Recoverable Self-Test Failures . . . . . . . . . . . . . . . . . . . . 3-7
Non-Recoverable Self-Test Failures . . . . . . . . . . . . . . . . . 3-8
Verifying LED Operation . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Verifying LED Operation on the HP Router ER, TR, and SR . . . 3-9
Verifying LED Operation on Other Router Models . . . . . . . . . 3-9
Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Testing the Router Only . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Testing the Router’s Ports . . . . . . . . . . . . . . . . . . . . . . . 3-11
Troubleshooting a Terminal or Modem Connection . . . . . . . . 3-12
Testing a Transceiver on an Ethernet/802.3 Port . . . . . . . . . . 3-15
Testing a Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
A. Cables and Connectors
HP Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Other Standard Cables . . . . . . . . . . . . . . . . . . . . . . . . . A-4
Cable and Connector Pin-Outs . . . . . . . . . . . . . . . . . . . . . A-5
Router Console Port Connector Pin-Outs . . . . . . . . . . . . . A-5
RS-232 Modem Cable—Minimum Pin-Outs . . . . . . . . . . . . . A-5
RS-232 “Null Modem” Cable for Terminal/PC with
25-Pin Connector—Minimum Pin-Out . . . . . . . . . . . . . . A-6
RS-232 “Null Modem” Cable for Terminal/PC with
9-Pin Connector—Minimum Pin-Outs . . . . . . . . . . . . . . . A-6
RS-232 Cable for HP Portable (110) and Portable
Plus—Minimum Pin-Outs . . . . . . . . . . . . . . . . . . . . . A-7
Null-Modem Adapter for Use with Modem
Cable—Minimum Pin-Outs . . . . . . . . . . . . . . . . . . . . . A-7
Router AUI LAN Port Definition . . . . . . . . . . . . . . . . . . . A-8
AUI Cable—Minimum Pin-Outs . . . . . . . . . . . . . . . . . . . A-8
RS-449/422 WAN Cable—Minimum Pin-Outs . . . . . . . . . . . . A-9
V.35 WAN Cable—Minimum Pin-Outs . . . . . . . . . . . . . . . . A-10
X.21 WAN Cable—Minimum Pin-Out . . . . . . . . . . . . . . . . A-11
RS-232 WAN Cable—Minimum Pin-Outs . . . . . . . . . . . . . . A-12
Back-to-Back Test Cables . . . . . . . . . . . . . . . . . . . . . . . A-13
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