[c-nsp] MPLS VPN on Sup720-3BXL

David Freedman david.freedman at uk.clara.net
Wed Jan 16 14:08:12 EST 2008


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I thought tunnel recirculation was added automagically now when the box
boots if it thinks its gonna have a problem based on h/w config?

Dave.

Jared Mauch wrote:
| On Wed, Jan 16, 2008 at 05:52:39PM +0000, David Freedman wrote:
|>
|> > MPLS path seems good end-to-end - 'no mpls ip propagate-ttl local'
shows
|> > the traceroute drop to one hop, both endpoints show the two core
routers
|> > as LDP neighbors, both sides have 'send-community extended' on the BGP
|> > neighbor sessions, receive ACLs have been opened.  'sh ip ro vrf
<name>'
|> > shows the routes with correct (global) next-hops.
|>
|> So I take it you have traced the LSPs between the next hops  end to end
|> in both directions to verify they are not broken?
|
| 	You may also need to add this (global) command:
|
| mls mpls tunnel-recir
|
| 	I wouldn't go pushing it everywhere unless it actually fixes
| a problem for you though.
|
| 	- Jared
|


- --
David Freedman
Group Network Engineering
Claranet Limited
http://www.clara.net
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