[rbak-nsp] Internal QoS markings

[David Freedman]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1


Apparently it doesn't, this is the response I've had after trying to
make it work (and it failing):

‘Using "propagate qos from ip" is not the right way to achieve what
you want since subscriber is terminating on this box so with
"propagate qos from ip", it will actually try to copy dscp in subscriber
IP header from LAC direction and potentially put dscp back to ip header
outbound toward core network. So basically, this will not work

So this is apparently only relevant when we are acting as LAC?

They suggested putting a metering policy on the sub, but we've already
got a pwfq on there (it was the only way we found to get policing)
wondering if the policer on the metering policy (rate xxx) actually
works now..

Dave.


Ian Calderbank wrote:
> It works :-)
> Ian
>
> -----Original Message-----
>
>
> Message: 1
> Date: Thu, 18 Feb 2010 12:23:43 -0000
> From: "David Freedman" <david.freedman at uk.clara.net>
> To: <redback-nsp at puck.nether.net>
> Subject: [rbak-nsp] Internal QoS markings
> Message-ID:
> 	<7B8B0D6F623C3A40A0D0A80A66756E2B2C3552 at EXVS01.claranet.local>
> Content-Type: text/plain; charset="iso-8859-1"
>
>
> Was thinking of using the internal QoS markings to copy DSCP from subscriber
> payload to the tunnel header but the tunnels originate in another context,
> should be able to do this with "propagate qos from ip" and "propagate qos to
> l2tp" in sub profile and l2tp peer respectively but concerned that these
> markings may get lost when user's packet has to travel between PPAs. Perhaps
> I'm just confusing this with the "not being able to do per-sub qos when
> using an lns card group" issue (see earlier posts from me) so anybody doing
> this and it working between multiple linecards, a simple "it works" would be
> much appreciated!
>
> Dave.
>
> ---
>
>
> _______________________________________________
> redback-nsp mailing list
> redback-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/redback-nsp
>




- --

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

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

iEYEARECAAYFAkug7g0ACgkQtFWeqpgEZrIt9gCfY20QBfA+u3fOka0n+lODXEmo
DfoAnRATguwleFdZpSsC1HP7fqAP09K6
=v+Gl
-----END PGP SIGNATURE-----