RE: RR and "no valid path"

From: Matt Wagner (miguknom@xxxxxxxxxxx)
Date: Fri Aug 17 2001 - 20:45:39 GMT-3


   
I guess Michelle missed the part where I said that I have a route in my
routing table to the advertised BGP next-hop, and I can ping it. That route
happens to be via OSPF in this case. So, Daniel, did you ever find out what
the deal is?

Matt

----Original Message Follows----
From: "Michelle Truman" <mtruman@mn.mediaone.net>
Reply-To: "Michelle Truman" <mtruman@mn.mediaone.net>
To: "Matt Wagner" <miguknom@hotmail.com>, <dy3519@sbc.com>,
<ccielab@groupstudy.com>
Subject: RE:
Date: Fri, 17 Aug 2001 17:17:55 -0500

Synchronization says you must have an IGP route that matches the BGP route
or BGP won't advertise, RR or not.

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Matt Wagner
Sent: Friday, August 17, 2001 3:39 PM
To: dy3519@sbc.com; ccielab@groupstudy.com
Subject: RE:

Daniel,

That is exactly what I am seeing with my route reflector. I have three
routers peered with it, 2 of which are EBGP speakers.

              R3
               |
               |
               |
     R1-------RR-------R2
      | |
      | |
    Remote Remote
      AS AS

My BGP stuff doesn't make it past the RR unless I turn off syncronization.
I get that "no valid path" crap even though I can see the next hop in my
routing table and ping it. Have you figured out why? Did I miss the part
of the documentation that says that reflectors don't work with
synchronization?

----Original Message Follows----
From: "YOUNG, DANIEL (SBCSI)" <dy3519@sbc.com>
To: Matt Wagner <miguknom@hotmail.com>
Subject: RE:
Date: Fri, 17 Aug 2001 11:46:17 -0700

Yes, I get this with RRs when I left synchronization enabled.

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Matt Wagner
Sent: Saturday, August 11, 2001 8:12 PM
To: ccielab@groupstudy.com
Subject:

Has anyone had a situation where BGP says "no valid path" but you have the
next hop in your routing table and you can ping it? What did you do? The
configs are long, so I won't post them. Just wandered if it rings a bell
with anyone...

Matt

A man said to the Universe, "Sir, I exist".
The Universe replied, "The fact may be,
but it inspires in me no sense of obligation."



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