I'm trying to get VRRP on dot1q sub-interfaces working. I'm seeing some strange behaviour with both sides being MASTER
R1 ->2960 stack port 1/0/1
R2 ->2960 stack port 2/0/1
sho run int g1/0/1
interface GigabitEthernet1/0/1
description RTR1Ge0/0
switchport mode trunk
end
sho run int g2/0/1
interface GigabitEthernet2/0/1
description RTR2Ge0/0
switchport mode trunk
end
sho int trunk
Port Mode Encapsulation Status Native vlan
Gi1/0/1 on 802.1q trunking 1
Port Vlans allowed on trunk
Gi1/0/1 1-4094
Gi2/0/1 1-4094
Port Vlans in spanning tree forwarding state and not pruned
Gi1/0/1 1-3,5,38-39,43-45,100,246-247
Gi2/0/1 1-3,5,38-39,43-45,100,246-247
============
R1
interface GigabitEthernet0/0
description UPLINK ***
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
duplex auto
speed auto
!
interface GigabitEthernet0/0.2
description VLAN2 Network ***
encapsulation dot1Q 2
ip address 172.16.240.2 255.255.255.128
ip helper-address 172.17.206.41
ip helper-address 172.19.219.7
vrrp 2 ip 172.16.240.1
vrrp 2 preempt delay minimum 1
vrrp 2 priority 110
vrrp 2 authentication PASSWORD
vrrp 2 track 1 decrement 30
GigabitEthernet0/0.2 - Group 2
State is Master
Virtual IP address is 172.16.240.1
Virtual MAC address is 0000.5e00.0102
Advertisement interval is 1.000 sec
Preemption enabled, delay min 1 secs
Priority is 110
Track object 1 state Up decrement 30
Authentication text, string "PASSWORD"
Master Router is 172.16.240.2 (local), priority is 110
Master Advertisement interval is 1.000 sec
Master Down interval is 3.570 sec
===================
Shut, no shut on R1 results in the following log messages:
Apr 22 14:53:56.859 UTC: %VRRP-6-STATECHANGE: Gi0/0.2 Grp 2 state Master -> Init
Apr 22 14:55:50.735 UTC: %VRRP-6-STATECHANGE: Gi0/0.2 Grp 2 state Init -> Backup
Apr 22 14:55:54.307 UTC: %VRRP-6-STATECHANGE: Gi0/0.2 Grp 2 state Backup -> Master
Apr 22 14:55:54.307 UTC: VRRP: tbridge_smf_update failed
==========================
R2
interface GigabitEthernet0/0
description UPLINK ***
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
duplex auto
speed auto
!
interface GigabitEthernet0/0.2
description VLAN2 Network ***
encapsulation dot1Q 2
ip address 172.16.240.3 255.255.255.128
ip helper-address 172.17.206.41
ip helper-address 172.19.219.7
ip nat inside
ip virtual-reassembly in
vrrp 2 ip 172.16.240.1
vrrp 2 authentication PASSWORD
sho vrrp int g0/0.2
GigabitEthernet0/0.2 - Group 2
State is Master
Virtual IP address is 172.16.240.1
Virtual MAC address is 0000.5e00.0102
Advertisement interval is 1.000 sec
Preemption enabled
Priority is 100
Authentication text, string "PASSWORD"
Master Router is 172.16.240.3 (local), priority is 100
Master Advertisement interval is 1.000 sec
Master Down interval is 3.609 sec
=====================
Shut, no shut int g0/0.2 and I get the following on R2
Apr 22 14:52:09.461 UTC: %VRRP-6-STATECHANGE: Gi0/0.2 Grp 2 state Master -> Init
Apr 22 14:52:09.461 UTC: %VRRP-6-STATECHANGE: Gi0/0.2 Grp 2 state Master -> Init
Apr 22 14:52:14.853 UTC: %VRRP-6-STATECHANGE: Gi0/0.2 Grp 2 state Init -> Backup
Apr 22 14:52:18.465 UTC: %VRRP-6-STATECHANGE: Gi0/0.2 Grp 2 state Backup -> Master
======================
The wierd thing is other sub interfaces show up as master and backup correctly while some do not. I'm baffled. Any ideas?
======================
R1#sho vrrp br
Interface Grp Pri Time Own Pre State Master addr Group addr
Gi0/0.2 2 110 3570 Y Master 172.16.240.2 172.16.240.1
Gi0/0.3 3 110 3570 Y Master 172.16.240.130 172.16.240.129
Gi0/0.43 43 110 3570 Y Master 10.43.240.2 10.43.240.1
Gi0/0.44 44 110 3570 Y Master 10.44.240.2 10.44.240.1
Gi0/0.45 45 110 3570 Y Master 10.45.240.2 10.45.240.1
Gi0/0.246 246 110 3570 Y Master 10.246.240.2 10.246.240.1
R2#sho vrrp br
Interface Grp Pri Time Own Pre State Master addr Group addr
Gi0/0.2 2 100 3609 Y Master 172.16.240.3 172.16.240.1
Gi0/0.3 3 100 3609 Y Backup 172.16.240.130 172.16.240.129
Gi0/0.43 43 100 3609 Y Master 10.43.240.3 10.43.240.1
Gi0/0.44 44 100 3609 Y Backup 10.44.240.2 10.44.240.1
Gi0/0.45 45 100 3609 Y Master 10.45.240.3 10.45.240.1
Gi0/0.246 246 100 3609 Y Backup 10.246.240.2 10.246.240.1