General Troubleshooting Information
This section describes general information for troubleshooting SIPs and SPAs. It includes the following sections:
Interpreting Console Error Messages
To view the explanations and recommended actions for Cisco ASR 1000 Series Routers error messages, including messages related to Cisco ASR 1000 Series Routers SIPs and SPAs, refer to the System Messages for Cisco IOS XE document.
System error messages are organized in the documentation according to the particular system facility that produces the messages. The SIP and SPA error messages for serial SPAs use the following facility names:
- Cisco ASR 1000 Series SIP—ASR1000_SIP
- 2-Port and 4-Port Channelized T3 SPA—SPA_CHOC_DSX
- 2-Port and 4-Port Clear Channel T3/E3 Serial SPA—SPA_T3E3
Using debug Commands
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Along with the other debug commands supported on the Cisco ASR 1000 Series Routers, you can obtain specific debug information for SPAs on the Cisco ASR 1000 Series Routers using the debug hw-module subslot privileged EXEC command.
The debug hw-module subslot command is intended for use by Cisco technical support personnel. For information about other debug commands supported on the Cisco ASR 1000 Series Routers, refer to the Cisco IOS Debug Command Reference and any related feature documents for your Cisco IOS software release.
Using show Commands
There are several show commands that you can use to monitor and troubleshoot the SIPs and SPAs on the Cisco ASR 1000 Series Routers. This chapter describes using the show interfaces and show controllers commands to perform troubleshooting of your SPA.