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Beginner

strange behaviour by 4507 for Vlan config

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 ?

3 REPLIES 3
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Cisco Employee

Hi,

Yes certianly its a bug. I currently cannot remember the bug as I had seen this couple of months back.

Regards

Inayath

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Hi,

Thanks for reply , I tried to search bug but not able to found it.Can somebody help to get it ?

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Hi InayathUlla,

Can you help to me to find the bug u find related to same issue  ?

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