Cisco Bug: CSCup92860 - Nexus 3000: Flood Unknown Unicast after L3 switch (NLB Unicast Support)
Feb 15, 2018
- Cisco Nexus 3000 Series Switches
Known Affected Releases
Symptom: Connectivity issue to end hosts after L3 switch. Nexus 3000 will not flood unknown unicast destined to a host for which ARP is resolved, but L2 forwarding table is empty for given destination mac. Conditions: - Nexus 3000 - L2 table does not have the destination mac address and not programmed in L2 forwarding table. - ARP entry for the destination IP address is complete and valid - Flow in discussion is L3 switched.
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Bug Details Include
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- Known Fixed Releases
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