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Cell Relay Retreat>MPLS-OPS Archive>month:2002-Dec> msg00157



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Re: Bypassing IGP shortcut by filtering LDP advertisement

  • From: "Gopal@Yahoo" <gnaganab@yahoo.com>
  • Date: Wed, 18 Dec 2002 12:09:22 -0800 (PST)
  • Resent-Date: Wed, 18 Dec 2002 16:39:08 -0500
  • To: "M. ELK" <elkou141061@hotmail.com>, mpls-ops@mplsrc.com

Elk,
We can't apply filters to TE autoroute-announce to
choose what routes shd be installed over the tunnel
intf. So, both PE2 and PE3 are reachable over the
tunnel. But you are not adv label over the tunnel100
for PE3.
So,
Dynamic trick;-) is:
you are doing:- "we control P3 config such that P3
will only advertise label for PE2 over this directed
LDP session"
Don't do the above. Or, Let P3 advertise label for PE3
as well over the directed LDP session.

brgds,
gopal




--- "M. ELK" <elkou141061@hotmail.com> wrote:

<HR>
<html><div style='background-color:'><DIV>
<P><BR>Gopal </P>
<P>Thnck for U answer . </P>
<P>Unfortunately the static trick is not workable in
the setup i had .</P>
<P>the actual setup is a netw for 20+ P and&nbsp;
50+PE's&nbsp;,OPS&nbsp; are very sensitive to any
overhead generated by manual config . </P>
<P>Any other dynamic trick ?? .</P>
<P>&nbsp;</P>
<P>Brgds&nbsp;&nbsp;</P>
<P><BR>&nbsp;</P></DIV>
<DIV></DIV>
<DIV></DIV>&gt;From: "Gopal@Yahoo"
<GNAGANAB@YAHOO.COM>
<DIV></DIV>&gt;To: "M. ELK" <ELKOU141061@HOTMAIL.COM>,
mpls-ops@mplsrc.com 
<DIV></DIV>&gt;Subject: Re: Unidentified subject! 
<DIV></DIV>&gt;Date: Wed, 18 Dec 2002 09:32:34 -0800
(PST) 
<DIV></DIV>&gt; 
<DIV></DIV>&gt;long one indeed but a good q though. 
<DIV></DIV>&gt; 
<DIV></DIV>&gt;case-1 is expected. 
<DIV></DIV>&gt; 
<DIV></DIV>&gt;A good workaround for your situation wd
be. 
<DIV></DIV>&gt;1. Do not 'autoroute-announce' on P1.
Instead use a 
<DIV></DIV>&gt;static route, ip route <PE2>/32 tunn100

<DIV></DIV>&gt; 
<DIV></DIV>&gt;that shd do the trick. 
<DIV></DIV>&gt; 
<DIV></DIV>&gt;PLs let me know if you have any q's 
<DIV></DIV>&gt;rgds, 
<DIV></DIV>&gt;gopal 
<DIV></DIV>&gt; 
<DIV></DIV>
<DIV></DIV></div><br clear=all><hr> <a
href="http://g.msn.com/8HMQEN/2015">the new MSN 8</a>
and get 2 months FREE*</html>


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