[146124] in North American Network Operators' Group
MPLS TE
daemon@ATHENA.MIT.EDU (harbor235)
Fri Nov 4 12:10:38 2011
Date: Fri, 4 Nov 2011 12:09:44 -0400
From: harbor235 <harbor235@gmail.com>
To: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
TE lab testing flushing out how TE works, configured a primary and backup
tunnel between PEs, both directions.
Primary is dynamic and backup is explicit, initially priorities were the
same, I then choose
to make one tunnel preferred over the other adjusting the priorities, I
choose the tunnel that was backup
to become primary to watch the traffic shift. (primary path was P1-P2-P3,
backup path P1-P3). However,
the traffic did not shift, a manual shut on a P3-P2 interface made the
traffic shift, reintroduction
kept the traffic on P1-P3, then a "mpls traffic reoptimize" moved the
traffic back to P1-P2-P3.
Obviously the preferred MPLS tunnel is still P1-P2-P3 even though I
configured "tunnel mpls traffic-eng priority 1 1"
on P1-P3 and "tunnel mpls traffic-eng priority 7 7" on P1-P2-P3. What am I
missing here?
My setup:
CE-----PE-----P1----------P3-------PE----CE
\ /
\ /
P2
Mike
