What is the purpose of Priority Delta in VRRP?
A. When a box
is
up, Effective Priority = Priority + Priority Delta
B. When an Interface is up, Effective Priority = Priority + Priority Delta
C. When an Interface fail, Effective Priority = Priority – Priority Delta
D. When a box fail, Effective Priority = Priority – Priority Delta
Explanation:
Each instance of VRRP running on a supported interface may monitor the link state of other interfaces. The monitored interfaces do not have to be running VRRP. If a monitored interface loses its link state, then VRRP will decrement its priority over a VRID by the specified delta value and then will send out a new VRRP HELLO packet. If the new effective priority is less than the priority a backup platform has, then the backup platform will beging to send out its own HELLO packet. Once the master sees this packet with a priority greater than its own, then it releases the VIP.
Reference: https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk38524