Cisco Bug: CSCuq53321 - L2FM doesnt have all vlans mapped to peer-link - mct_vlan_bmp incomplete
Last Modified
Sep 17, 2019
Products (8)
- Cisco Nexus 7000 Series Switches
- Cisco Nexus 7000 10-Slot Switch
- Cisco Nexus 7000 4-Slot Switch
- Cisco Nexus 7700 6-Slot Switch
- Cisco Nexus 7000 18-Slot Switch
- Cisco Nexus 7700 18-Slot Switch
- Cisco Nexus 7000 9-Slot Switch
- Cisco Nexus 7700 10-Slot Switch
Known Affected Releases
6.2(10)S53 6.2(8a)
Description (partial)
Symptom: Traffic across peer-link is not sent correctly resulting in traffic loss. Control-plane protocols like HSRP may get out-of-sync. mac-address not synced correctly between the vPC peers. Good side: N7K-B#show system internal l2fm info detail <snip> Peer link: Po1 mct_vlan_bmp 108,113,118,121-122,157,163,173,178,188,191,193-194 <snip> Broken side: N7K-A#show system internal l2fm info detail <snip> Peer link: Po1 mct_vlan_bmp 108,113,118,121-122,157,173,178,188,191,193-194 <<== Vlan 163 missing <snip> Conditions: This issue is seen in Nexus7000 vPC setup running 6.2.x releases AND vPC peers has vPC ports in access mode. This issue occurs when vPC access ports and vPC peer-links come up at the same time.
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Bug Details Include
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