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mlacomb
newbie
Topic Author
Posts: 44
Joined: Wed Aug 17, 2022 10:01 pm

VRRP Pre-empt

Mon Jan 30, 2023 8:27 pm

All:

I've configured a simple VRRP setup on 2 sets of CRS1036-12g-4s (7.7). It doesn't appear VRRP preemption is working, as the master (150 priority) router never takes back the gateway address. Not a huge deal, traffic still flows - but potentially sub-optimally across the trunk. Anyone else had similar issues?
 
 ROUTER#1
 /interface/vrrp> print
Flags: B, F - FAILURE
Columns: NAME, INTERFACE, MAC-ADDRESS, VRID, PRIORITY, INTERVAL, VERSION, V3-PROTOCOL, SYNC-CONNECTION-TRACKING
#   NAME     INTERFACE  MAC-ADDRESS        VRID  PRIORITY  IN  V  V3-P  SYN
0 B vrrpLAN  LAN        00:00:5E:00:01:01     1       150  1s  3  ipv4  yes
[admin@CCR01] /interface/vrrp>

ROUTER#2
interface vrrp print
Flags: R - RUNNING; M, F - FAILURE
Columns: NAME, INTERFACE, MAC-ADDRESS, VRID, PRIORITY, INTERVAL, VERSION, V3-PROTOCOL, SYNC-CONNECTION-TRACKING
#    NAME     INTERFACE  MAC-ADDRESS        VRID  PRIORITY  INTERVAL  VERSION  V3-PROTOCOL  SYNC-CONNECTION-TRACKING
0 RM vrrpLAN  LAN        00:00:5E:00:01:01     1       100  1s              3  ipv4         yes
[admin@CCR02] >
 
mlacomb
newbie
Topic Author
Posts: 44
Joined: Wed Aug 17, 2022 10:01 pm

Re: VRRP Pre-empt

Mon Jan 30, 2023 9:28 pm

Looks like Sync Connection Tracking and pointing the VRRP members at each other causes this. Removed that configuration and the master recovers properly.

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