[72520] in North American Network Operators' Group
BGP Dampening question
daemon@ATHENA.MIT.EDU (D Train)
Thu Jul 15 23:47:34 2004
Date: Thu, 15 Jul 2004 20:46:54 -0700 (PDT)
From: D Train <dtrain_04@yahoo.com>
To: nanog@merit.edu
Errors-To: owner-nanog-outgoing@merit.edu
--0-308106621-1089949614=:15318
Content-Type: text/plain; charset=us-ascii
I was needing to know if anyone could assist in helping me find a solution to a problem I am experiencing. Here is the scenario:
I have an AS 20, that has 2 circuits one to city A, and one to City B. City A and City B are in another AS, lets say AS 1. In my AS 20, I am learning the default route via EBGP, from City A,through my primary link, and also have a static route configured to traverse my secondary link, to City B. If I keep seeing the physical connection to City A flapping, of course bgp will flap, but will I be able to use route dampening to control the instability in AS 20? Will I be able to tweak route dampening to where I will be able to just use the secondary for say a set time, before it will try to use the primary link, even if this connection is continuously flapping? I am hoping that I will be able to tweak dampening to where it will just use my secondary link, until I can fix my primary link, w/o having to manually shut the interface, or shut bgp?
I apologize if this is a bit off topic...
TIA,
D-
---------------------------------
Do you Yahoo!?
Yahoo! Mail - 50x more storage than other providers!
--0-308106621-1089949614=:15318
Content-Type: text/html; charset=us-ascii
<DIV>
<DIV>I was needing to know if anyone could assist in helping me find a solution to a problem I am experiencing. Here is the scenario:</DIV>
<DIV> </DIV>
<DIV>I have an AS 20, that has 2 circuits one to city A, and one to City B. City A and City B are in another AS, lets say AS 1. In my AS 20, I am learning the default route via EBGP, from City A,through my primary link, and also have a static route configured to traverse my secondary link, to City B. If I keep seeing the physical connection to City A flapping, of course bgp will flap, but will I be able to use route dampening to control the instability in AS 20? Will I be able to tweak route dampening to where I will be able to just use the secondary for say a set time, before it will try to use the primary link, even if this connection is continuously flapping? I am hoping that I will be able to tweak dampening to where it will just use my secondary link, until I can fix my primary link, w/o having to manually shut the interface, or shut bgp? </DIV>
<DIV>I apologize if this is a bit off topic...</DIV>
<DIV> </DIV>
<DIV>TIA, <BR>D-</DIV></DIV><p>
<hr size=1>Do you Yahoo!?<br>
<a href="http://us.rd.yahoo.com/mail_us/taglines/50x/*http://promotions.yahoo.com/new_mail/static/efficiency.html">Yahoo! Mail</a> - 50x more storage than other providers!
--0-308106621-1089949614=:15318--
