Cisco Bug: CSCvt36854 - VLAN create fails if VLAN name already exists - CLI hangs and MTS is stuck
Oct 06, 2020
- Cisco Nexus 9000 Series Switches
Known Affected Releases
Symptom: Creating a VLAN for which a VLAN NAME already exists will fail and cause CLI to hang. We also see that VLAN_MGR messages may be stuck in MTS. Example below: The following configuration already exists in the running-config. VLAN 345 with name VLAN0045: vlan 345 name VLAN0045 Running the following command will cause failure: # conf t # vlan 45 <CLI hang> # show system internal mts buffers summary node sapno recv_q pers_q npers_q log_q sup 167 0 0 0 1 <<<<<<< 167 may become stuck # show system internal mts sup sap 167 description Vlan_mgr SAP Conditions: Issue is seen on Nexus 3000 and 9000 switch series.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.
Bug Details Include
- Full Description (including symptoms, conditions and workarounds)
- Known Fixed Releases
- Related Community Discussions
- Number of Related Support Cases