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Why internal EIGRP flapping when a WAN link is flapping?

gwhuang5398
Level 2
Level 2

‎05-26-2006 12:10 PM - edited ‎03-03-2019 03:24 AM

I have router A and B running EIGRP in between. Router B has a WAN connection into the carrier.

Recently the EIGRP neighboring between A and B was flapping. In the mean time the WAN link was flapping too.

Router B was running BGP over the WAN link and redistributing BGP into EIGRP.

Why the WAN link issue caused the EIGRP neighboring up and down?

Thanks

Gary

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wdrootz
Level 4
Level 4

‎06-01-2006 06:44 AM

When we attempted to ping the ISP's router will a full size MTU packet, the packet gets dropped. Any packets greater than 400 bytes gets dropped.

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