Cisco WS-C2960S-24PD-L Software Guide - Page 309
GigaStack Messages
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Appendix A System Messages Error Message and Recovery Procedures Error Message GBIC_SECURITY-4-UNRECOGNIZED_VENDOR: GBIC interface [chars] manufactured by an unrecognized vendor. Explanation This message means that the GBIC was identified as a Cisco GBIC, but the system was unable to match its manufacturer with one of the known list of Cisco GBIC vendors. [chars] is the interface in which the GBIC is installed. Recommended Action Check the list of supported GBICs for this version of the system software. An upgrade might be required for newer GBICs. Error Message GBIC_SECURITY-4-VN_DATA_CRC_ERROR: GBIC interface [chars] has bad crc. Explanation This message means that the GBIC was identified as a Cisco GBIC, but it does not have a valid CRC in the EEPROM data. [chars] is the interface in which the GBIC is installed. Recommended Action Check the list of supported GBICs for this version of the system software. An upgrade might be required for newer GBICs. Even if unrecognized, the GBIC might still operate properly, perhaps with limited functionality. GigaStack Messages This section contains the Cisco GigaStack Gigabit Interface Converter (GBIC) error messages. Error Message GIGASTACK-1-NO_LOOP_DETECT: The link neighbor of link [dec] of Gigastack GBIC in [chars] did not respond to the loop detection request. If loop topology is deployed, make sure all switches in the stack are running the latest software. Explanation No acknowledgement for GigaStack loop detection request is received from one of the links on a GigaStack GBIC. Either the neighboring switch does not support the GigaStack loop-breaking algorithm, or the link between the two GigaStack GBICs is broken. Under this condition, a GigaStack loop topology is not automatically detected, and the connectivity between switches in the stack could be lost. Recommended Action If loop topology is used in the GigaStack, make sure that the latest software is running on all switches in the stack. Verify that the GigaStack GBICs involved are functioning. Error Message GIGASTACK-3-INIT_FAILURE: Gigastack GBIC in [chars] initialization failed. Explanation GigaStack GBIC failed POST. Recommended Action Remove the GigaStack GBIC, and re-insert it into the GBIC slot. Error Message GIGASTACK-6-LOOP_BROKEN Explanation A loop formed by GigaStack modules is broken because of link loss. Link 2 of the Master Loop Breaker is re-enabled to replace the broken line. Recommended Action No action is required. 78-6511-08 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide A-17