How does VCS agent monitor the NIC (I assume it's using ping)? How many unsuccessful
pings before VCA
decide to take down the NIC and failover to another one? How to check this?
From hatype
or hares? How to modify these settings?

Also, I saw in vcs log file that node 1 thinks node 2 is down. Is that because

the heartbeat ping fails?

Thanks,

yonglin qian