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- Device running in Client mode , domain name TEST , version 2. - After upgrade ,VTP configuration lost, falling back to version 1
- Upgrade from 6.2(16) to 7.3(0)DX(1) - Both Disruptive ISSU & Cold boot sees the same behavior. - VTP version 1/2
Follow supported Non-disruptive ISSU path
Device configured as below Switch-VTP# sh vtp status VTP Status Information ---------------------- VTP Version : 2 (capable) Configuration Revision : 4 Maximum VLANs supported locally : 1005 Number of existing VLANs : 8 VTP Operating Mode : Client VTP Domain Name : TEST VTP Pruning Mode : Disabled (Operationally Disabled) VTP V2 Mode : Enabled VTP Traps Generation : Disabled MD5 Digest : 0xC1 0x1E 0x8A 0x73 0x45 0xA8 0xBF 0xE4 Configuration last modified by 10.122.190.100 at 12-12-08 21:39:57 VTP version running : 2 After the upgrade ================== Switch-VTP# show vtp status VTP Status Information ---------------------- VTP Version : 3 (capable) Configuration Revision : 0 Maximum VLANs supported locally : 1005 Number of existing VLANs : 5 VTP Operating Mode : Server VTP Domain Name : VTP Pruning Mode : Disabled (Operationally Disabled) VTP V2 Mode : Disabled VTP Traps Generation : Disabled MD5 Digest : 0x57 0xCD 0x40 0x65 0x63 0x59 0x47 0xBD 0x56 0x9D 0x4A 0x3E 0xA5 0x69 0x35 0xBC Configuration last modified by 0.0.0.0 at 12-12-08 22:10:03 Local updater ID is 10.122.190.100 on interface mgmt0 (first L3 interface found) VTP version running : 1 - Version falls back from version 2 to version 1 - VTP Domain name configuration missing. - VTP mode changes from Client to Server - Changing the VTP datafile to a non-default file also doesnt help. - Event-history shows the below 2 errors. Switch-VTP# show vtp internal event-history errors 1) Event:E_DEBUG, length:92, at 226024 usecs after Fri Dec 12 22:10:03 2008 [102] vtp_utils.c/vtp_receive_app_config():3892 VTP instance 1 not supported in version 1/2 2) Event:E_DEBUG, length:93, at 213561 usecs after Fri Dec 12 22:10:03 2008 [102] vtp_restore_pss_data.c/vtp_restore_from_saved_config():527 runtime pss config was empty Hardware : Nexus 7700 with N77-SUP2E Software : 6.2(16)
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