Dear Shail,
I am just saying that in order to narrow
down the troubleshooting process, it could be a good idea to turn off the qos
on the cats.
On some of them, COS and DSCP might be bound.
Other ways are to check baby giants , MPLS
stuffs, and so on.
PA
From: Gupta,
Shailendra [mailto:Shailendra.Gupta@hk.mci.com]
Sent: mercredi 15 septembre 2004
11:13
To: Pierre-Alain François; 'Garry
Glendown'; mpls-ops@mplsrc.com
Subject: RE: [MPLS-OPS]: IP
Routing problem after enabling MPLS?
Dear PA
Is this
QOS on Switch, MPLS sensitive & if yes, how? Yr i/p would definitely help
to under this aspect as well.
Shail
-----Original
Message-----
From: Pierre-Alain François [mailto:pafr@pt.lu]
Sent: Wednesday, September 15, 2004
2:25 PM
To: 'Garry Glendown';
mpls-ops@mplsrc.com
Subject: RE: [MPLS-OPS]: IP Routing
problem after enabling MPLS?
Hi Garry,
My first
idea:
See in your cat3550 attached GigE
if you get "ignored" or "Pause output" increments. If
so, it could be related to QoS on your catalyst. Try to disable qos on it via
global "no mls qos". Check if it does correct your problem.
Otherwise,
pursue your troubleshooting in other directions ;-)
PA
-----Original
Message-----
From: Garry Glendown [mailto:garry@regio.net]
Sent: mercredi 15 septembre 2004
09:30
To: mpls-ops@mplsrc.com
Subject: [MPLS-OPS]: IP Routing
problem after enabling MPLS?
An
interesting thing just happened ... :(
I enabled
MPLS on several routers, without setting anything specific ...
(i.e., just added "mpls
ip" on some necessary interfaces on the way
between a dialup router and a PE->CE
router). Everything seemed to work
out fine, and labels being
distributed correctly. Anyway, one of our
uplinks started giving me trouble,
with connections/routings as such
working, but severely degraded
performance (telnet to ebay.com e.g.
would connect, a GET / would take a
minute or more with only occasional
blocks of data transfered) - after
disabling MPLS on that router (which
wasn't really necessary anyway),
everything worked fine again ... when I
re-enable MPLS on its GigE, the
delays are there again ... increasing
the MTU to 1512 doesn't help,
either ... (switch backplane is 35/29
series switches, routers involved
in the local ethernet are a 12k and 72
series w/ GigE PAs)
Any idea?
Tnx, -gg
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