06-24-2014 10:20 AM - edited 03-07-2019 07:49 PM
Hi,
I am having issue with VTP incompatible on primary N5K
N5K-Primary#
vPC domain id : 53
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
Configuration consistency status: success
Per-vlan consistency status : success
Type-2 consistency status : failed
Type-2 consistency reason : VTP type-2 configuration incompatible
vPC role : primary, operational secondary
Number of vPCs configured : 1
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
N5K-Primary## sh vtp status
VTP Status Information
----------------------
VTP Version : 2 (capable)
Configuration Revision : 4
Maximum VLANs supported locally : 1005
Number of existing VLANs : 9
VTP Operating Mode : Server
VTP Domain Name : <VTP domain not acquired/configured yet>
VTP Pruning Mode : Disabled (Operationally Disabled)
VTP V2 Mode : Disabled
VTP Traps Generation : Enabled
MD5 Digest : 0x9B 0x75 0x57 0x77 0x42 0x0B 0xC8 0x61
Configuration last modified by 0.0.0.0 at 6-24-14 04:58:25
Local updater ID is 0.0.0.0
VTP version running : 1
N5K-Primary# Sh spanning tree root
VLAN0001 4097 0023.04ee.be01 2 2 20 15 port-channel53
VLAN0300 4396 0023.04ee.be01 2 2 20 15 port-channel53
VLAN0302 4398 0023.04ee.be01 2 2 20 15 port-channel53
VLAN1000 5096 0023.04ee.be01 2 2 20 15 port-channel53
VLAN1001 5097 0023.04ee.be01 2 2 20 15 port-channel53
VLAN1007 5103 0023.04ee.be01 2 2 20 15 port-channel53
VLAN2701 6797 0023.04ee.be01 2 2 20 15 port-channel53
port-channel -53 is peer link going to secondary Nexus 5K
N5K-Secondary#
vPC domain id : 53
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
Configuration consistency status: success
Per-vlan consistency status : success
Type-2 consistency status : failed
Type-2 consistency reason : VTP type-2 configuration incompatible
vPC role : secondary, operational primary
Number of vPCs configured : 1
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
N5K-Secondary#Sh VTP status
VTP Version : 2 (capable)
Configuration Revision : 0
Maximum VLANs supported locally : 1005
Number of existing VLANs : 5
VTP Operating Mode : Transparent
VTP Domain Name : NNDC
VTP Pruning Mode : Disabled (Operationally Disabled)
VTP V2 Mode : Disabled
VTP Traps Generation : Enabled
MD5 Digest : 0xC0 0x0B 0x29 0xBC 0x09 0x92 0x40 0x4B
Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00
VTP version running : 1
N5K-Secondary# sh spanning-tree root
Root Hello Max Fwd
Vlan Root ID Cost Time Age Dly Root Port
---------------- -------------------- ------- ----- --- --- ----------------
VLAN0001 4097 0023.04ee.be01 1 2 20 15 port-channel253
VLAN0300 4396 0023.04ee.be01 1 2 20 15 port-channel253
VLAN0302 4398 0023.04ee.be01 1 2 20 15 port-channel253
VLAN1000 5096 0023.04ee.be01 1 2 20 15 port-channel253
VLAN1001 5097 0023.04ee.be01 1 2 20 15 port-channel253
VLAN1007 5103 0023.04ee.be01 1 2 20 15 port-channel253
VLAN2701 6797 0023.04ee.be01 1 2 20 15 port-channel253
port-channel-253 is port-channel going to nexus 7K's
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Question:
- I am going to fix the VTP by changing VTP mode on primary N5K matching to secondary ...On secondary i have VTP as transparent.
- My question is " if i change VTP mode on primary does my spanning tree root changes ??"
- How can i make spanning tree root on N5K primary pointing to port-channel-253 instead of port-channel 53
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06-24-2014 11:05 AM
Hi,
It should not change the root. Just make sure the primary device has lower id.
example:
spanning-tree vlan xxx priority 8192.
or if you are running mst
spanning-tree mst xx priority 8192
and keep the secondary device as default.
HTH
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