From: Schulz, Dave (DSchulz@dpsciences.com)
Date: Tue Mar 21 2006 - 18:45:33 GMT-3
John - can you post your configs?
Dave Schulz,
Email: dschulz@dpsciences.com
-----Original Message-----
From: John Matus [mailto:John.Matus@tokiom.com]
Sent: Tuesday, March 21, 2006 4:37 PM
To: Schulz, Dave
Cc: ccielab@groupstudy.com
Subject: RE: bgp frustration IE lab 1
sync is turned off on all routers. these prifixes are just being
advertised from BB1 and BB3 and are not IGP routes.......which makes it
really strange....
Regards,
John D. Matus
Technical Support / PAS
Fujitsu Consulting
626-568-7716
John.Matus@tokiom.com
"Schulz, Dave"
<DSchulz@dpscienc
es.com>
To
"John Matus"
03/21/2006 01:07 <John.Matus@tokiom.com>,
cc
Subject
RE: bgp frustration IE lab 1
John -
A couple things to look at here.... Do you have synchronization turned
on in any of the routers? Are the routes you have here in IGP, or just
BGP specifically? You might try to see what each router is advertising
to R5....
Show ip bgp nei "r5" advertised-routes (from R3 and R6). Also, try
doing the debug ip bgp updates from this neighbor.
Hope this helps.
Dave Schulz
Email: dschulz@dpsciences.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
John Matus
Sent: Tuesday, March 21, 2006 3:50 PM
To: ccielab@groupstudy.com
Subject: bgp frustration IE lab 1
ok, this is frustrating me to no end...........and i used to be so good
w/
bgp
this is lab 1 IE 3.0
R3, R4, R5, R6 are all in AS 100
R5 is a route-reflector for all other routers in the AS. AS 100 is
learning prefixes from AS 54 from 2 connections, R3 and R6, but the
routes
are not propagating as expected........i would expect R3 and R6 to
advertise to R5 which would then advertise to R4 and back to the spokes.
but here is what i get in my BGP tables.
R3
r3#bb
BGP table version is 78, local router ID is 150.1.3.3
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 28.119.16.0/24 204.12.1.254 0 0 54 i
*> 28.119.17.0/24 204.12.1.254 0 0 54 i
*> 112.0.0.0 204.12.1.254 0 54 50 60 i
*> 113.0.0.0 204.12.1.254 0 54 50 60 i
*> 114.0.0.0 204.12.1.254 0 54 i
*> 115.0.0.0 204.12.1.254 0 54 i
*> 116.0.0.0 204.12.1.254 0 54 i
*> 117.0.0.0 204.12.1.254 0 54 i
*> 118.0.0.0 204.12.1.254 0 54 i
*> 119.0.0.0 204.12.1.254 0 54 i
* i205.90.31.0 183.1.58.8 0 100 0 200 254 ?
*> 183.1.123.1 0 200 254 ?
* i220.20.3.0 183.1.58.8 0 100 0 200 254 ?
*> 183.1.123.1 0 200 254 ?
* i222.22.2.0 183.1.58.8 0 100 0 200 254 ?
*> 183.1.123.1 0 200 254 ?
r4#bb
BGP table version is 174, local router ID is 150.1.4.4
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*>i28.119.16.0/24 204.12.1.254 0 100 0 54 i
*>i28.119.17.0/24 204.12.1.254 0 100 0 54 i
*>i112.0.0.0 204.12.1.254 0 100 0 54 50 60 i
*>i113.0.0.0 204.12.1.254 0 100 0 54 50 60 i
*>i114.0.0.0 204.12.1.254 0 100 0 54 i
*>i115.0.0.0 204.12.1.254 0 100 0 54 i
*>i116.0.0.0 204.12.1.254 0 100 0 54 i
*>i117.0.0.0 204.12.1.254 0 100 0 54 i
*>i118.0.0.0 204.12.1.254 0 100 0 54 i
*>i119.0.0.0 204.12.1.254 0 100 0 54 i
*>i205.90.31.0 183.1.58.8 0 100 0 200 254 ?
*>i220.20.3.0 183.1.58.8 0 100 0 200 254 ?
*>i222.22.2.0 183.1.58.8 0 100 0 200 254 ?
r4#
r5#bb
BGP table version is 294, local router ID is 150.1.5.5
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
* i28.119.16.0/24 54.1.1.254 0 500 0 54 i
*>i 204.12.1.254 0 100 0 54 i
* i28.119.17.0/24 54.1.1.254 0 500 0 54 i
*>i 204.12.1.254 0 100 0 54 i
* i112.0.0.0 54.1.1.254 0 100 0 54 50 60 i
*>i 204.12.1.254 0 100 0 54 50 60 i
* i113.0.0.0 54.1.1.254 0 100 0 54 50 60 i
*>i 204.12.1.254 0 100 0 54 50 60 i
* i114.0.0.0 54.1.1.254 0 500 0 54 i
*>i 204.12.1.254 0 100 0 54 i
* i115.0.0.0 54.1.1.254 0 500 0 54 i
*>i 204.12.1.254 0 100 0 54 i
* i116.0.0.0 54.1.1.254 0 500 0 54 i
*>i 204.12.1.254 0 100 0 54 i
* i117.0.0.0 54.1.1.254 0 500 0 54 i
*>i 204.12.1.254 0 100 0 54 i
* i118.0.0.0 54.1.1.254 0 500 0 54 i
Network Next Hop Metric LocPrf Weight Path
*>i 204.12.1.254 0 100 0 54 i
* i119.0.0.0 54.1.1.254 0 500 0 54 i
*>i 204.12.1.254 0 100 0 54 i
* i205.90.31.0 183.1.123.1 0 100 0 200 254 ?
*> 183.1.58.8 0 200 254 ?
* i220.20.3.0 183.1.123.1 0 100 0 200 254 ?
*> 183.1.58.8 0 200 254 ?
* i222.22.2.0 183.1.123.1 0 100 0 200 254 ?
*> 183.1.58.8 0 200 254 ?
r5#
r6#bb
BGP table version is 14, local router ID is 150.1.6.6
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
* i28.119.16.0/24 204.12.1.254 0 100 0 54 i
*> 54.1.1.254 500 0 54 i
* i28.119.17.0/24 204.12.1.254 0 100 0 54 i
*> 54.1.1.254 500 0 54 i
* i112.0.0.0 204.12.1.254 0 100 0 54 50 60 i
*> 54.1.1.254 0 0 54 50 60 i
* i113.0.0.0 204.12.1.254 0 100 0 54 50 60 i
*> 54.1.1.254 0 0 54 50 60 i
* i114.0.0.0 204.12.1.254 0 100 0 54 i
*> 54.1.1.254 0 500 0 54 i
* i115.0.0.0 204.12.1.254 0 100 0 54 i
*> 54.1.1.254 0 500 0 54 i
* i116.0.0.0 204.12.1.254 0 100 0 54 i
*> 54.1.1.254 0 500 0 54 i
* i117.0.0.0 204.12.1.254 0 100 0 54 i
*> 54.1.1.254 0 500 0 54 i
* i118.0.0.0 204.12.1.254 0 100 0 54 i
Network Next Hop Metric LocPrf Weight Path
*> 54.1.1.254 0 500 0 54 i
* i119.0.0.0 204.12.1.254 0 100 0 54 i
*> 54.1.1.254 0 500 0 54 i
*>i205.90.31.0 183.1.58.8 0 100 0 200 254 ?
*>i220.20.3.0 183.1.58.8 0 100 0 200 254 ?
*>i222.22.2.0 183.1.58.8 0 100 0 200 254 ?
r6#
now it appears that R6 is learning the prefixes from AS 54 from r3 as
well
as BB1, but R3 is not learning the prefixes that R6 is learning from
BB1.
in addition, i have a local-pref set to route to BB1, but it seems to be
choosing internal routes rather than BGP routes and i have no idea where
it
is getting these internal routes since i did not redistribute BGP into
IGP.
ANY IDEAS??
TIA
Regards,
John D. Matus
Technical Support / PAS
Fujitsu Consulting
626-568-7716
John.Matus@tokiom.com
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