Cisco ONS 15454 - Clear the WTR Condition on an IEEE 802.17 b-Based RPR Span; 2.7.444 WVL-MISMATCH; 2.8 Traffic Card LED Activity; 2.8.1 Typical Traffic Card LED Activity After Insertion

2-259
Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 2 Alarm Troubleshooting
2.7.444 WVL-MISMATCH
If the condition is raised on an IEEE 802.17b-based RPR span, it indicates that the wait-to-restore timer
is active after a span failure has cleared.
Caution DS-1 traffic loss can occur on a DS-1 with 1:N protection if a DS-1 card is reset with the protect card in
the WTR state.
Note Generally, WTR is an informational condition and does not require troubleshooting.
Clear the WTR Condition on an IEEE 802.17b-Based RPR Span
Step 1 Determine the setting for the IEEE 802.17b-based RPR interface’s WTR timer setting. In privileged
executive mode, enter the following command:
router#show interface rpr protection
View the WTR timer setting.
Step 2 If the timer is set to “never,” clear the WTR condition by requesting a forced switch on the span. Enter
the following command at the RPR-IEEE interface configuration mode command prompt:
router(config-if)#rpr-ieee protection request force-switch {east | west}
Step 3 If you configured a FORCE on the span, clear the switch with the following command:
router(config-if)#no rpr-ieee protection request force-switch {east | west}
Step 4 If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/techsupport for more information or call Cisco TAC 1 800 553-2447.
2.7.444 WVL-MISMATCH
For information about this alarm or condition, refer to the “Alarm Troubleshooting” chapter in the
Cisco ONS 15454 DWDM Troubleshooting Guide. This guide discusses all DWDM alarms.
2.8 Traffic Card LED Activity
ONS 15454 traffic card LED behavior patterns are listed in the following sections. These sections give
behavior for card insertion, reset, and side-switch.
2.8.1 Typical Traffic Card LED Activity After Insertion
When a card is inserted, the following LED activities occur:
1. The red FAIL LED turns on and remains illuminated for 20 to 30 seconds.
2. The red FAIL LED blinks for 35 to 45 seconds.
3. All LEDs blink once and turn off for 5 to 10 seconds.