From: Scott M Vermillion (scott_ccie_list@it-ag.com)
Date: Sun Jan 25 2009 - 21:15:41 ARST
Wow, this just hit my inbox! List is slowly grinding to a halt again,
evidently.
The real question I guess is whether or not that physical interface you're
talking about will ever experience congestion? If not, again, your LLQ is
just kind of taking up space in the configs. I still occasionally get
involved with mobile/tactical systems and this is something I sometimes run
into. Used to be a lot of the cellular data cards had serial interfaces, so
I really could experience congestion. Now everything is 10/100/1000, so I
can't ever experience congestion (until I hit the cell network but by then
it's too late!). Whether or not I apply QoS to the tunnel or the physical
depends on specifics of the system, how many tunnels I'm feeding into the
given interface, whether or not I'm doing IPSec or just GRE, etc. Also, I
do a lot of DMVPN with these mobile systems, with mGRE everywhere (even on
the spokes since they often hit multiple Head End routers), to which (as far
as I know) you still cannot apply a service policy, so I have no choice but
to deal with the physical interfaces for QoS. But now with DMVPN Phase 3,
we're supposed to be able to do per-SA QoS. Man, that'll be sweet! Can't
wait to try it out (and would love to hear from anyone who already has)...
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Jason Madsen
Sent: Sunday, January 25, 2009 8:53 AM
To: Cisco certification
Subject: Re: QoS Over GRE
oh...forgot to mention that initially it looks like the way to do it is via
QoS Pre-Classification and nested MQC. although, I wonder if simply
applying a non-nested priority MQC to the physical interface that the tunnel
uses and then applying QoS Preclass on the tunnel if that would work?
Jason
On Sun, Jan 25, 2009 at 8:49 AM, Jason Madsen <madsen.jason@gmail.com>wrote:
> does anyone have any experience in doing priority-queuing over GRE
> tunnels? I found an article by Cisco, but I can't say that it's all that
> I'm looking for.
>
> I don't want to do any QoS other than priority-queuing over the tunnels
> unless required.
>
> Here's the one link I found:
>
>
>
http://www.cisco.com/en/US/tech/tk543/tk545/technologies_tech_note09186a0080
17405e.shtml
>
> ...looking for more.
>
> Jason
Blogs and organic groups at http://www.ccie.net
This archive was generated by hypermail 2.1.4 : Sun Mar 01 2009 - 09:43:40 ARST