Cisco Bug: CSCuq78908 - GRE: Sync the internal vlan id of GRE tunnels to standby
Sep 01, 2020
- Cisco Catalyst 4000 Series Switches
Known Affected Releases
15.2(4)E 15.2(5)E 15.2(7)E
Symptom: If GRE Tunnel or L2 Overlay tunnels are present on switch and standby sup is inserted later, internal vlan associated with these interface might not be synced correctly on standby and affected port will not come up switchover. Conditions: GRE Tunnel and L2 Overlay tunnel are present and Standby SUP is inserted after Active is up.
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Bug Details Include
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