Issue with VLAN Tracking on Cisco Nexus 9000 Series with NX-OS 10.2(1)

[AbdelrahmanM22]

Hello,

We are experiencing an issue with VLAN tracking on our Cisco Nexus 9000 Series switches running NX-OS version 10.2(1). The problem is as follows:

- We have a VLAN configured over a specific trunk.
- Tracks are configured to specific destinations, and the only path to these destinations is through this VLAN.
- Upon shutting down the trunk, the tracks go down as expected.
- However, after one day, we observed logs indicating that the tracks were up, without any actions being taken on the trunk.

Steps Taken:
1. Verified that the VLAN is not allowed on any other interfaces.
2. Checked for redundant paths and alternate routes.
3. Ensured correct configuration of VLANs, tracking mechanisms, and gateway settings.
4. Reviewed logs and did not find any anomalies.

We would like to know if there are any known bugs or issues related to this behavior in NX-OS version 10.2(1). Any insights or suggestions for further troubleshooting would be greatly appreciated.

Thank you,
Abdelrahman

[MHM Cisco World]

Do traceroute check of there is other path. 

Also the vlan must be down if trunk is down or not allow it except case 

You use this vlan for other port on that case it will be UP

MHM

[AbdelrahmanM22]

Already checked and vlan is down yes , and not allowed on any interface or route , could this be related to sw bug ? 

[MHM Cisco World]

Did you check traceroure? 

Also do

Show ip route <destination of track>

If there is other path then sure it will appear in rib

MHM

[AbdelrahmanM22]

Yes checked and no route except this vlan

[MHM Cisco World]

there is nothing in my mind, contact cisco it can be bug 

Goodluck 

MHM