One reason to do this is to use a different egress PE classification
scheme and rewrite ruleset than what is used in the core. This
allows for setting different core EXP values than what would be
preserved at egress and then, potentially, used for egress marking,
thus maintaining TOS transparency end-to-end. I believe this is
called the short-pipe model.
C
On Jun 8, 2009, at 8:26 AM, Lynch, Tomas wrote:
Why would you want to do that? Labels are used only inside your
backbone
where you have the same QoS policy in all the routers. It's going
to be
a burden to configure QoS policies on interfaces because you will have
to think "is this router doing the PHP or not?"
-----Original Message-----
From: juniper-nsp-boun...@puck.nether.net
[mailto:juniper-nsp-boun...@puck.nether.net] On Behalf Of Li Zhu
Sent: Sunday, June 07, 2009 7:46 PM
To: mas...@nexlinx.net.pk
Cc: juniper-nsp@puck.nether.net
Subject: Re: [j-nsp] MPLS EXP bit marking question
Masood, Nugroho
Thank you for the reply. I agree with both of you that rewrite takes
effect
on both inner and outer mpls label. My next question is:
what if I want to mark inner and outer MPLS label differently? Say I
want
mark the inner exp with 5 and outer exp with 6? Is it possible to
achieve
this?
Thanks,
Li
On Sun, Jun 7, 2009 at 4:10 PM, <mas...@nexlinx.net.pk> wrote:
the rewrite-rule will take effect on both tags and all the labels in
label
stack.
Regards,
Masood
All,
There is a network like CE --- PE --- P. The PE is M320. Traffic is
from
CE
to P. The traffic out of CE is native IP, after it reaches and gets
out
PE
(then to P), it is double-tagged with MPLS lable. There is a exp
rewrite-rule applied on PE link to P router. My questions is
will the rewrite-rule take effect on both tags or only the outer
tag?
Thanks,
Li
_______________________________________________
juniper-nsp mailing list juniper-nsp@puck.nether.net
https://puck.nether.net/mailman/listinfo/juniper-nsp
_______________________________________________
juniper-nsp mailing list juniper-nsp@puck.nether.net
https://puck.nether.net/mailman/listinfo/juniper-nsp
_______________________________________________
juniper-nsp mailing list juniper-nsp@puck.nether.net
https://puck.nether.net/mailman/listinfo/juniper-nsp
_______________________________________________
juniper-nsp mailing list juniper-nsp@puck.nether.net
https://puck.nether.net/mailman/listinfo/juniper-nsp
