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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


Description (partial)

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

Running port-security.
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