Firewall Monitors

Hi,

Can anyone recommend standard parameters to be monitored on a firewall for day-to-day operations?

Also, I've set-up a ICMP Large monitor and I get 6 values. What does this mean?

nsAttkMonIcmpLarge.0:-->23989
nsAttkMonIcmpLarge.1:-->72
nsAttkMonIcmpLarge.2:-->0
nsAttkMonIcmpLarge.3:-->0
nsAttkMonIcmpLarge.4:-->32866
nsAttkMonIcmpLarge.5:-->0

All input appreciated.