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Cisco Bug: CSCuj86243 - CB-40/vPC+ Dynamic MAC insert failed syslog with just 4K dynamic MACs

Last Modified

Feb 15, 2018

Products (4)

  • Cisco Nexus 7000 Series Switches
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco Nexus 7000 18-Slot Switch
  • Cisco Nexus 7000 9-Slot Switch

Known Affected Releases

5.2(5) 6.2(5.27)S0

Description (partial)

Symptom:
The following syslog is seen on an F series system with only 4,000 dynamic macs:

2013 Oct 16 12:10:55 sw144-n7k1 %L2FM-6-L2FM_DYN_MAC_INS_FAILED: Dynamic mac insertion failure!fail_cnt: 4 Slot:3
2013 Oct 16 12:10:55 sw144-n7k1 %L2FM-6-L2FM_DYN_MAC_INS_FAILED: Dynamic mac insertion failure!fail_cnt: 4 Slot:2
2013 Oct 16 12:10:55 sw144-n7k1 %L2FM-6-L2FM_DYN_MAC_INS_FAILED: Dynamic mac insertion failure!fail_cnt: 3 Slot:3
2013 Oct 16 12:10:55 sw144-n7k1 %L2FM-6-L2FM_DYN_MAC_INS_FAILED: Dynamic mac insertion failure!fail_cnt: 6 Slot:3
2013 Oct 16 12:10:55 sw144-n7k1 %L2FM-6-L2FM_DYN_MAC_INS_FAILED: Dynamic mac insertion failure!fail_cnt: 2 Slot:3
2013 Oct 16 12:10:56 sw144-n7k1 %L2FM-6-L2FM_DYN_MAC_INS_FAILED: Dynamic mac insertion failure!fail_cnt: 2 Slot:2
2013 Oct 16 12:10:56 sw144-n7k1 %L2FM-6-L2FM_DYN_MAC_INS_FAILED: Dynamic mac insertion failure!fail_cnt: 4 Slot:2
2013 Oct 16 12:10:56 sw144-n7k1 %L2FM-6-L2FM_DYN_MAC_INS_FAILED: Dynamic mac insertion failure!fail_cnt: 2 Slot:8

Conditions:
F series LC and a dynamic mac count less than the verified scale limit of 16,000 macs per SoC.
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