Cisco 10720 Configuration Guide - Page 112
Alarm, Description, Solution, SRP1/1 Side A Keepalive
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Alarm Messages Chapter 4 Troubleshooting Table 4-1 Keepalive Alarm Messages for All Uplink Cards (continued) Alarm Description SRP1/1 Side A Keepalive SONET line signal degrade Failure (LSD) SRP1/1 Side A Keepalive SONET line signal degrade Failure (LSD) SRP1/1 Side A Keepalive Keepalive failure removed; OK Layer 2 Keepalive receiving correctly RPR-IEEE1/1 span WEST Keepalive Failure (MAC) MAC failure is detected RPR-IEEE1/1 span SONET section loss of signal WEST Keepalive Failure (SLOS) RPR-IEEE1/1 span WEST Keepalive Failure (SLOF) RPR-IEEE1/1 span WEST Keepalive Failure (LSD) SONET section loss of frame SONET line signal degrade RPR-IEEE1/1 span WEST Keepalive Failure (LSF) SONET line signal failure RPR-IEEE1/1 span WEST Keepalive Failure OK Keepalive signal removed, Layer 2 Keepalive receiving correctly Solution Check the affected fiber, transmit and receive ports. Check power level. This is a SONET layer 1 issue with signal degrade. Check the neighbor node/transport/regenerator for SONET layer 1 issues (LOS, LSF). This is a SONET layer 1 issue with an intermediate unit (usually transport connection or regenerator) forwarding an AIS. None. Check transport span for problems. Typically RPR 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 degredation in (power level) or clocking (interval versus line). Check the affected fiber transmit (TX) and receive (RX) ports. Check the power level. This is a SONET Layer 1 issue with signal degradation. Check the neighboring node/transport/regenerator for SONET layer 1 issues (LOS, LSF). This is a SONET Layer 1 issue with an intermediate unit (usually transport connection or regenerator) forwarding an AIS. None. 4-12 Cisco 10720 Internet Router Installation and Configuration Guide 78-13062-10