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Inner dot1q tag retained for regular trunk ports breaking connectivity as destination port receives two dot1q tags. Hosts across different leaf switches in VXLAN EVPN fabric.
system dot1q-tunnel transit VXLAN Fabric with Cisco cloud scale ASIC switches currently observed with release 9.3(3)
Do not enter the "system dot1q-tunnel transit" command if there are no variants of QinVNI ports configured on the VTEPs. OR, configure any spare interface (doesn't need to be UP) with the following configuration on each VTEP (both in case of vPC): (Supported with N9300-FX/FXP/FX2 platform switches) interface Ethernet1/x switchport switchport mode trunk switchport trunk allow-multi-tag switchport trunk allowed vlan x = any VLAN with vn-segment enabled. Example: VLAN Segment-id ---- ----------- 10 1010
Please engage TAC, if you are running multiple QinVNI like features on same VTEP. Issue is still under investigation
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