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Cisco Bug: CSCvs04660 - Wrong source mac address when traffic is switched between BDI on ASR920.

Last Modified

Apr 12, 2020

Products (1)

  • Cisco ASR 920 Series Aggregation Services Router

Known Affected Releases

15.6(1.6)

Description (partial)

Symptom:
BDI Source Mac address gets changed when traffic is switched from one BDI to another. This was evident in port-security violation. We could verify the same in Switch configured with port-security with sticky feature. 


*Jan  2 18:27:10.475: %PM-4-ERR_DISABLE: psecure-violation error detected on Gi1/0/1, putting Gi1/0/1 in err-disable state
*Jan  2 18:27:10.508: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address 500f.801f.bc00 on port GigabitEthernet1/0/1                                                                                  .
*Jan  2 18:27:10.508: %PORT_SECURITY-2-PSECURE_VIOLATION_VLAN: Security violation on port GigabitEthernet1/0/1 due to MAC address 500f.801f.bc00 on VLAN571
*Jan  2 18:27:11.490: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/1, changed state to down
*Jan  2 18:27:12.505: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/1, changed state to down


Actual BDI Mac address: 500f.801f.bcbf

Conditions:
Running port-security.
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