Cisco 10720 Configuration Guide - Page 111

Chapter 4 Troubleshooting Alarm Messages If the value "none" is present in IPS packets received, there is a problem on the ring. Fiber Misconnection Use the show srp EXEC command to check for misconnected fiber cables, for example, side A to side A or TX to TX. The message, "Misconnection Alarm" shows at the top of the show srp command output when there is a fiber misconnection. • One alarm-the problem is with another ring on the node. For example, side A connected to side A. • Two alarms-the problem is your node. For example, side A to side A and side B to side B. Alarm Messages The following alarm messages display on the console. The suggested solutions cover the most commonly observed errors. See the following tables for specific alarms and solutions. Alarm Messages The following alarm messages report to the console. See Table 4-1 through Table 4-8 for specific alarms and solutions. The suggested solutions listed below are to the most commonly observed errors: • Keepalive Alarm Messages for All Uplink Cards, Table 4-1 on page 4-11 • IEEE 802.17 RPR Wrap Messages, Table 4-2 on page 4-13 • IEEE 802.17 RPR Unwap Messages, Table 4-3 on page 4-14 • Other IEEE 802.17 RPR Alarm Messages, Table 4-6 on page 4-16 • SRP Wrap Messages, Table 4-7 on page 4-17 • SRP Unwrap Message, Table 4-8 on page 4-18 Table 4-1 Keepalive Alarm Messages for All Uplink Cards Alarm Description SRP1/1 Side A Keepalive MAC failure is detected Failure (MAC) SRP1/1 Side A Keepalive SONET section loss of signal Failure (SLOS) SRP1/1 Side A Keepalive SONET section loss of frame Failure (SLOF) Solution Check transport span for problems. Typically SRP ring traverses a SONET layer connection, creating this error. Check fiber for breaks, power level, and connectivity. This is a SONET layer 1 issue with fiber. Check the fiber for degradation in (power level) or clocking (internal versus line). 78-13062-10 Cisco 10720 Internet Router Installation and Configuration Guide 4-11