Filter
Top Products
2-55
Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
Chapter 2 Alarm Troubleshooting
2.7.64 ETH-LINKLOSS
2.7.64 ETH-LINKLOSS
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Object: NE
The Rear Panel Ethernet Link Removed condition, if enabled in the network defaults, is raised under the
following conditions:
• The node.network.general.AlarmMissingBackplaneLAN field in NE default is enabled.
• The node is configured as a gateway network element (GNE).
• The LAN cable is removed.
For more information about Ethernet operation in the ONS 15310-CL or ONS 15310-MA, refer to the
Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet Card Software Feature and Configuration
Guide.
Clear the ETH-LINKLOSS Condition
Step 1 To clear this condition, reconnect the LAN cable on the front of the node.
Step 2 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).
2.7.65 E-W-MISMATCH
The E-W-MISMATCH alarm is not used in the ONS 15310 platforms in this release. It is reserved for
development.
2.7.66 EXCCOL
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
SONET Logical Object: EQPT
The Excess Collisions on the LAN alarm indicates that too many collisions are occurring between data
packets on the network management LAN, and communications between the ONS 15310-CL or
ONS 15310-MA and CTC could be affected. The network management LAN is the data network
connecting the workstation running the CTC software to the controller card. The problem causing the
alarm is external to the node.
Troubleshoot the network management LAN connected to the ONS 15310-CL or ONS 15310-MA for
excess collisions. You might need to contact the system administrator of the network management LAN
to accomplish the following steps.
Clear the EXCCOL Alarm
Step 1 Verify that the network device port connected to the ONS 15310-CL or ONS 15310-MA has a flow rate
set to 10 MB, half-duplex.