Hi All,
Found some strange behaviour of VLAN on 4507 , below is the summury of incident.
- In sh run port showing to VOICE VLAN 305 , but port was sending broadcast on 303 VOICE VLAN.
- AVAYA IP phone was configured with VOICE VLAN 305 only.It was working fine , just got impacted.
- sh run & sh vl brief was showing diffrent VLAN assignment to VOICE port
- Only VOICE VLAN 305 got impacted on this Switch.Due to which IP phone went on DHCP discovery mode.
- Switch is using IOS -- cat4500e-entservicesk9-mz.150-2.SG2.bin
Issue got resolved after removing port from voice config & again adding in it.Not sure if this is IOS bug or something else.Can somebody help to get the root cause of this issue ?