 Re: Master not passing traffic in Vrrp
In VRRP-HA constellation there are IMHO two reasons for backup-instance to take over:
- no vrrp-advertisements are seen from any vrrp-configured interfaces
- vrrp-advertisements are seen with lower prio than the own
If so, backup should start to send vrrp-advertisements with its prio. As they are higher, "old master" should stop sending vrrp-advertisements, become backup and "old backup" should become master.
Check your vrrp traffic on external and internal clusterinterfaces on both machines (four interfaces in summary) and pay special attention to prios in vrrp-packets.
To do so run from a console:
tcpdump -i <clusterinterface> ip proto 112
If master/backup state is clear, only master should send advertisements. You will see them only from physical interfaces source address, not from virtual cluster ip.
kind regards |