H3C S7500 Series Operation Manual page 596

Operation Manual – VRRP-HA
H3C S7500 Series Ethernet Switches
coexistence of many master switches, which may be because the original master
switch and other member switches in a backup group cannot receive VRRP packets
from each other, or receive some illegal packets.
To solve such a problem, an attempt should be made to ping among these masters and
if such an attempt fails, check the connectivity between related devices. If they can be
pinged through, check VRRP configuration. For the configuration of a VRRP backup
group, complete consistency for the number of virtual IP addresses, each virtual IP
address, timer duration and authentication type configured on each member switch
must be guaranteed.
III. Symptom 3: VRRP state of a switch changes repeatedly
Such problems occur when the backup group timer duration is too short. They can be
solved through prolonging the duration or configuring the preemption delay period.
1-16
Chapter 1 VRRP Configuration