Path: utzoo!attcan!uunet!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!GUNTER-ADAM.AF.MIL!AFDDN.BEACH
From: AFDDN.BEACH@GUNTER-ADAM.AF.MIL
Newsgroups: comp.protocols.tcp-ip
Subject: EGP and C-30s
Message-ID: <12498725722.17.AFDDN.BEACH@GUNTER-ADAM.AF.MIL>
Date: 1 Jun 89 20:30:58 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 130

Anybody got a quick answer to this and I'll owe you a beer.

We're installing cisco MGS gateways at different sites on Milnet and 
occasionally a problem crops up with exchanging EGP updates with the
"new" core buttergates.  Essentially there seems to be an infinite 
cycling up and down between the gateways with the core never sending an 
update.

A brief example of the exchanges follows.  Our gateway is sending updates
and the real interesting part of it is that if the PSN our gateway is
on gets reset, the problem clears up immediately.

I would very much appreciate any hints, suggestions, or detailed technical
explanations.

Darrel B.

Ex***********
 
EGP: from 26.19.0.222 to 26.20.0.16, version=2, asystem=44429, sequence=3965
     Type=REACH, Code=HELLO, Status=1 (UP)
EGP: 26.6.0.103 going from DOWN to UP
EGP: from 26.19.0.222 to 26.6.0.103, version=2, asystem=44429, sequence=2258
     Type=POLL, Code=0, Status=1 (UP), Net=26.0.0.0
EGP: from 26.19.0.222 to 26.6.0.103, version=2, asystem=44429, sequence=192
     Type=UPDATE, Code=0, Status=129 (UP), IntGW=1, ExtGW=0, Net=26.0.0.0
     Network 26.0.0.0 via 26.19.0.222 in 0 hops
     Network 132.61.0.0 via 26.19.0.222 in 0 hops
EGP: from 26.19.0.222 to 26.6.0.103, version=2, asystem=44429, sequence=2259
     Type=REACH, Code=HELLO, Status=1 (UP)
EGP: 26.20.0.16 going from UP to DOWN
EGP: from 26.19.0.222 to 26.20.0.16, version=2, asystem=44429, sequence=3965
     Type=REACH, Code=HELLO, Status=2 (DOWN)
EGP: from 26.20.0.16 to 26.19.0.222, version=2, asystem=164, sequence=398
     Type=POLL, Code=0, Status=1 (UP), Net=26.0.0.0
EGP: 26.20.0.16 state is DOWN, bad type 2 when down
EGP: 26.6.0.103 going from UP to DOWN
EGP: from 26.19.0.222 to 26.6.0.103, version=2, asystem=44429, sequence=2259
     Type=REACH, Code=HELLO, Status=2 (DOWN)
EGP: from 26.6.0.103 to 26.19.0.222, version=2, asystem=164, sequence=199
     Type=POLL, Code=0, Status=1 (UP), Net=26.0.0.0
EGP: 26.6.0.103 state is DOWN, bad type 2 when down
EGP: from 26.19.0.222 to 26.20.0.16, version=2, asystem=44429, sequence=3965
     Type=REACH, Code=HELLO, Status=2 (DOWN)
EGP: from 26.20.0.16 to 26.19.0.222, version=2, asystem=164, sequence=3965
     Type=REACH, Code=I-HEARD-YOU, Status=1 (UP)
EGP: from 26.20.0.16 to 26.19.0.222, version=2, asystem=164, sequence=399
     Type=POLL, Code=0, Status=1 (UP), Net=26.0.0.0
EGP: 26.20.0.16 state is DOWN, bad type 2 when down
EGP: from 26.19.0.222 to 26.6.0.103, version=2, asystem=44429, sequence=2259
     Type=REACH, Code=HELLO, Status=2 (DOWN)
EGP: from 26.6.0.103 to 26.19.0.222, version=2, asystem=164, sequence=2259
     Type=REACH, Code=I-HEARD-YOU, Status=1 (UP)
EGP: from 26.6.0.103 to 26.19.0.222, version=2, asystem=164, sequence=200
     Type=POLL, Code=0, Status=1 (UP), Net=26.0.0.0
EGP: 26.6.0.103 state is DOWN, bad type 2 when down
EGP: 26.20.0.16 going from DOWN to UP
EGP: from 26.19.0.222 to 26.20.0.16, version=2, asystem=44429, sequence=3965
     Type=POLL, Code=0, Status=1 (UP), Net=26.0.0.0
EGP: from 26.19.0.222 to 26.20.0.16, version=2, asystem=44429, sequence=309
     Type=UPDATE, Code=0, Status=129 (UP), IntGW=1, ExtGW=0, Net=26.0.0.0
     Network 26.0.0.0 via 26.19.0.222 in 0 hops
     Network 132.61.0.0 via 26.19.0.222 in 0 hops
EGP: from 26.19.0.222 to 26.20.0.16, version=2, asystem=44429, sequence=3966
     Type=REACH, Code=HELLO, Status=1 (UP)
EGP: 26.6.0.103 going from DOWN to UP
EGP: from 26.19.0.222 to 26.6.0.103, version=2, asystem=44429, sequence=2259
     Type=POLL, Code=0, Status=1 (UP), Net=26.0.0.0
EGP: from 26.19.0.222 to 26.6.0.103, version=2, asystem=44429, sequence=192
     Type=UPDATE, Code=0, Status=129 (UP), IntGW=1, ExtGW=0, Net=26.0.0.0
     Network 26.0.0.0 via 26.19.0.222 in 0 hops
     Network 132.61.0.0 via 26.19.0.222 in 0 hops
EGP: from 26.19.0.222 to 26.6.0.103, version=2, asystem=44429, sequence=2260
     Type=REACH, Code=HELLO, Status=1 (UP)
EGP: 26.20.0.16 going from UP to DOWN
EGP: from 26.19.0.222 to 26.20.0.16, version=2, asystem=44429, sequence=3966
     Type=REACH, Code=HELLO, Status=2 (DOWN)
EGP: from 26.20.0.16 to 26.19.0.222, version=2, asystem=164, sequence=400
     Type=POLL, Code=0, Status=1 (UP), Net=26.0.0.0
EGP: 26.20.0.16 state is DOWN, bad type 2 when down
EGP: 26.6.0.103 going from UP to DOWN
EGP: from 26.19.0.222 to 26.6.0.103, version=2, asystem=44429, sequence=2260
     Type=REACH, Code=HELLO, Status=2 (DOWN)
EGP: from 26.6.0.103 to 26.19.0.222, version=2, asystem=164, sequence=201
     Type=POLL, Code=0, Status=1 (UP), Net=26.0.0.0
EGP: 26.6.0.103 state is DOWN, bad type 2 when down
EGP: from 26.19.0.222 to 26.20.0.16, version=2, asystem=44429, sequence=3966
     Type=REACH, Code=HELLO, Status=2 (DOWN)
EGP: from 26.20.0.16 to 26.19.0.222, version=2, asystem=164, sequence=3966
     Type=REACH, Code=I-HEARD-YOU, Status=1 (UP)
EGP: from 26.20.0.16 to 26.19.0.222, version=2, asystem=164, sequence=401
     Type=POLL, Code=0, Status=1 (UP), Net=26.0.0.0
EGP: 26.20.0.16 state is DOWN, bad type 2 when down
EGP: from 26.19.0.222 to 26.6.0.103, version=2, asystem=44429, sequence=2260
     Type=REACH, Code=HELLO, Status=2 (DOWN)
EGP: from 26.6.0.103 to 26.19.0.222, version=2, asystem=164, sequence=2260
     Type=REACH, Code=I-HEARD-YOU, Status=1 (UP)
EGP: from 26.6.0.103 to 26.19.0.222, version=2, asystem=164, sequence=202
     Type=POLL, Code=0, Status=1 (UP), Net=26.0.0.0
EGP: 26.6.0.103 state is DOWN, bad type 2 when down
EGP: 26.20.0.16 going from DOWN to UP
EGP: from 26.19.0.222 to 26.20.0.16, version=2, asystem=44429, sequence=3966
     Type=POLL, Code=0, Status=1 (UP), Net=26.0.0.0
EGP: from 26.19.0.222 to 26.20.0.16, version=2, asystem=44429, sequence=309
     Type=UPDATE, Code=0, Status=129 (UP), IntGW=1, ExtGW=0, Net=26.0.0.0
     Network 26.0.0.0 via 26.19.0.222 in 0 hops
     Network 132.61.0.0 via 26.19.0.222 in 0 hops
EGP: from 26.19.0.222 to 26.20.0.16, version=2, asystem=44429, sequence=3967
     Type=REACH, Code=HELLO, Status=1 (UP)
EGP: 26.6.0.103 going from DOWN to UP
EGP: from 26.19.0.222 to 26.6.0.103, version=2, asystem=44429, sequence=2260
     Type=POLL, Code=0, Status=1 (UP), Net=26.0.0.0
EGP: from 26.19.0.222 to 26.6.0.103, version=2, asystem=44429, sequence=192
     Type=UPDATE, Code=0, Status=129 (UP), IntGW=1, ExtGW=0, Net=26.0.0.0
     Network 26.0.0.0 via 26.19.0.222 in 0 hops
     Network 132.61.0.0 via 26.19.0.222 in 0 hops
EGP: from 26.19.0.222 to 26.6.0.103, version=2, asystem=44429, sequence=2261
     Type=REACH, Code=HELLO, Status=1 (UP)
EGP: 26.20.0.16 going from UP to DOWN
EGP: from 26.19.0.222 to 26.20.0.16, version=2, asystem=44429, sequence=3967
     Type=REACH, Code=HELLO, Status=2 (DOWN)
EGP: from 26.20.0.16 to 26.19.0.222, version=2, asystem=164, sequence=402
     Type=POLL, Code=0, Status=1 (UP), Net=26.0.0.0
*****************************

This gones on until the PSN (C-30) is reset, at which point updates from
the core begin coming in.
We've tried using a range of AS numbers, including much lower ones, but
nothing except resetting the PSN seems tp work.
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