The value of tMcPeerIPsecDiscoveryIntvlBoot specifies the maximum
duration of an interval immediately following system boot up. When the
normal discovery interval for a group would expire while the post-boot
discovery interval is still active, then the group's discovery interval
is extended until the post-boot discovery interval expires. This
allows an extension to the normal discovery stage of groups following
a chassis reboot, to account for the larger variance in routing
convergence time.