Cisco Bug: CSCul45644 - vlan_mgr crashed if dynamic reserved vlan range conflicts with vtp vlan.
Feb 13, 2018
- Cisco Nexus 7000 Series Switches
Known Affected Releases
Symptom: When reserved vlan range is within the VTP vlan range (vlan 2-1001) and this vtp switch receives a vtp message from the network carrying a user vlan that has been locally configured as reserved, the new vlan creation message to vlan_mgr causes a crash. Conditions: This bug is hit with VTP enabled and reserved vlan range falls under VTP vlan range. Example: 1. vdc1 and vdc2 have two trunks links between them. 2. vdc1 is vtp mode server, vdc2 is vtp client or server mode. 3. vdc2 has a reserved vlan range 100-227 configured. ex: switch(config)>system vlan 100 reserve. 4. vdc1 creates vlan 100. 5. when vdc2 receives vtp add vlan message, vlan_mgr crashes.
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