RE: DMVPN question

From: Thomas Renzy (threnzy) (threnzy@cisco.com)
Date: Thu Jan 15 2009 - 00:53:46 ARST


Hello Wes,

"When you allow the direct spoke to spoke connections to come it does
not rewrite the qos headers so basically you have no qos."

What about qos pre-classify?

http://www.cisco.com/en/US/tech/tk543/tk545/technologies_tech_note09186a
008017405e.shtml#qoscomm

Specifically...

"Apply the policy to a physical interface and enable qos-preclassify on
a tunnel interface when you want to classify packets based on the
pre-tunnel header."

Not sure if you had used this previously, but wanted to make you aware
of it.

Thanks,
Thomas

Thomas Renzy
Network Consulting Engineer
Cisco Systems
Office: (408)526-8248
Mobile: (650)248-1099
E-mail: threnzy@cisco.com

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Wes Stevens
Sent: Wednesday, January 14, 2009 6:04 PM
To: Dale Shaw
Cc: Roman Rodichev; Fake Name; Cisco certification
Subject: Re: DMVPN question

When you allow the direct spoke to spoke connections to come it does not
rewrite the qos headers so basically you have no qos. Not good for
voice. At least it was that way the last time we looked into this, not
sure if they have 'fixed' this.

----- Original Message ----
From: Dale Shaw <dale.shaw@gmail.com>
To: Wes Stevens <wrsteve33-gsccie@yahoo.com>
Cc: Roman Rodichev <roman@iementor.com>; Fake Name <fname84@gmail.com>;
Cisco certification <ccielab@groupstudy.com>
Sent: Wednesday, January 14, 2009 7:26:52 PM
Subject: Re: DMVPN question

Hi Wes,

On Thu, Jan 15, 2009 at 12:12 PM, Wes Stevens
<wrsteve33-gsccie@yahoo.com> wrote:
> If you are going to do voice this is very useful for CAC. If you
overlay the dmvpn you are back to hub and spoke and CAC gets real
tricky.

Huh?

Direct spoke-to-spoke communication is possible with DMVPN. I realise
the spokes initially learn about other spokes via the hub(s), but can
you clarify what you meant by your statement above?

cheers,
Dale

Blogs and organic groups at http://www.ccie.net



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