OutputDiscardPercent Too Noisy

I think we have a rather nice example I can provide you! rnWe have a site where the WAN link is in place but the site is not live yet. Itu2019s doing about 0.2 packets per second. Iu2019m guessing this is just Ciscou2019s Next Hop Routing Protocol or some other innocuous heartbeat.rnThis is a tunnel interface across the WAN so the MTU is only 1434 bytes. When it gets a packet that is between 1435 and 1500 bytes it drops it, sends an ICMP Packet Too Big message back to the source and increments the Discard counter.rnUnfortunately this results in about 0.04 pps of discards. My guess is some very small probe-type packet is going out to the site and the packet is >1434 bytes large. rnSo there you have it. A very small amount of background noise measured against an even smaller amount of background noise yields 16% discards! This is not actionable information. :-)