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New Member

EIGRP Routing Traffic

We have a global WAN managed by a third party. The WAN uses EIGRP throughout, and every couple of days we get a huge amount of EIGRP trafic show up on our Fastnet monitoring station. Normally, over 24 Hrs, EIGRP uses up a couple of K bandwidth, but on random days this goes up to 24 GB of traffic, impacting 'normal' traffic. Everything I have read indicates that this is not possible with EIGRP, but it's definately there! Has anyone seen similar problems before, or heard of anything like this? Any pointers much appreciated.


Re: EIGRP Routing Traffic

Sounds like you're getting some query "storms." I would look at the eigrp event log (show ip eigrp events) as a start, and try to figure out what actual routes are flapping or changing rapidly to cause this sort of massive packet levels....


New Member

Re: EIGRP Routing Traffic

Thanks Russ,

I don't have access to the routers involved, but I have got a breakdown of the traffic. On a normal day over 10 mins we get 400 K of multicast traffic, as expected, but on a bad day we get an additional 56 M of unicast in the same 10 min slot, and through the rest of the day. This is all point to point on a /30 serial link, spread over roughly 20 dlci's, but I can't drill into it further to see what is causing this. These 'bad days' don't form any pattern either, sometimes on a weeend, sometimes mid week, but it we always get a marked increase one day, two days really bad, and a drop off on the fourth day, then back to normal. V. strange...