Does mls qos trust dscp work for MPLS labeled packets (2960S/3750 non-metro)?

[silemire]

Scenario:

I have 2 PE routers connected to each other via 2960S and 3750 (non-metro) switches:

[PE1] -- [2960S] -- [3750] -- [2960S] -- [PE2]

I will be sending voice and data traffic between the two and my voice traffic will be marked DSCP EF & EXP 5.

Since the 2960's and 3750's can't match on the EXP bits, I am wondering if the "mls qos trust dscp" command still works. Is the 2960/3750 able to match on DSCP even though there's an MPLS header on top of the IP packet?

I'd like to avoid having to tag my VLAN traffic on the PE and rely on COS to achieve QoS in this case.

[InayathUlla Sharieff]

HI Silemire,

Please go through the below links and let me know if you need any clarificate further on this:

http://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&ved=0CEgQFjAC&url=http%3A%2F%2Fwww.nanog.org%2Fmeetings%2Fnanog36%2Fpresentations%2Fsathiamurthi.pdf&ei=L-c3UamqLs7prQeti4DICA&usg=AFQjCNHo_94vHh_d-VoEpb3MMu_0VfOF1A&sig2=KLbytARCY9T_TD...

(Read from Page 43 -50).

http://www.cisco.com/en/US/tech/tk436/tk428/technologies_tech_note09186a008022ad7e.shtml

HTH

REgards

Inayath

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