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Cisco Bug: CSCvv91239 - N9K could not learn MAC address of silent hosts after TCN occurrence

Last Modified

Sep 30, 2020

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases

7.0(3)I7(9) 9.3(5)

Description (partial)

Symptom:
The MAC addresses of the silent hosts might not be learnt by N9K after continuous TCN occurrence.

For example:
N9K# sh ip arp vrf test | in 10.0.0.1
10.0.0.1    00:13:27  0000.0600.008b  Vlan10
N9K# sh mac address-table | inc 0600.008b <<<<<< NO MAC
N9K# sh mac address-table | inc 0600.008b

Conditions:
1/ multiple TCNs
2/ silent hosts in network
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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