From: David Prall (dcp@dcptech.com)
Date: Fri Apr 18 2008 - 22:16:55 ART
Time to go and read the RFC's. Both GRE and IPsec will copy the TOS bits to
the outside header. As long as you are doing all QoS based on the IP
Precedence / DSCP markings you are good to go. If you want to look at the
original packet header in order to use L3/L4 information you will need to
use qos pre-classify.
David
-- http://dcp.dcptech.com> -----Original Message----- > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On > Behalf Of Lileikis, Gary > Sent: Friday, April 18, 2008 9:00 PM > To: ccielab@groupstudy.com > Subject: QOS When Doing IPSEC Over GRE > > Greetings, > > > > I am looking at a network that is using IPSEC over GRE. This > network is > running voice and data. I am concerned that as the IPSEC over > GRE packet > are travelling over the MPLS network the voice is not being > prioritized > over the data because the TOS bits with this priority information are > hidden behind the GRE IP Header. Is there any way to have the > TOS field > of the voice packet transferred to the TOS field in the GRE > IP header so > that the MPLS network can make prioritization decision? > > > > Thanks You!! > > Gary Lileikis > > > Pass the CCIE in six weeks, Guaranteed! > http://www.certscience.com/CCIE > ______________________________________________________________ > _________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html
Pass the CCIE in six weeks, Guaranteed! http://www.certscience.com/CCIE
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