QoS Problem ( nt getting same DSCP marking at diff.. vpls customer sites

Question

Hi we are having 3 locations A , B & C
we are providing l2 vpls service to customer .
customer is connected to our mpls cloud via EoSDH on my mpls switch on locations A , B & C.
customer is marking his traffic with DSCP bit XX from Location A when customer checking the traffic
at location B via packet sniffer ethereal they are not getting the same DSCP Tagging .
can anyone help me to find out the possible cause of this .
As far as i know in VPLS services there is limitation of provide multi-QoS.
But here in this case i m only trusting DSCP on the Lastmile port as well as on the trunks connected from my switches to my PEs .
so customer tagging should reach from location A to Location B .
Here we go:
CPE-A------CPE-A-SW--------SP-SW-A----PE-A======MPLS CLOUD=====PE-B------SP-SW-B-------CPE-B-SW-------CPE-B
here :CPE-A = customer router
CPE-A-SW = 4500
SP-SW-A = 4500
PE-A = 7600
PE-B = 7600
SP-SW-B = 3500
CPE-B-SW = 4500
CPE-B = customer router

Answer 1

I m getting blew output on the trunk interface connected to my PE on both the switches.
SP-SW-A#sh qos interface GigabitEthernet4/3
QoS is enabled globally
Port QoS is enabled
Administrative Port Trust State: 'dscp'
Operational Port Trust State: 'dscp'
Trust device: none
Default DSCP: 0 Default CoS: 0
Appliance trust: none
Tx-Queue Bandwidth ShapeRate Priority QueueSize
(bps) (bps) (packets)
1 250000000 disabled N/A 2336
2 250000000 disabled N/A 2336
3 250000000 disabled normal 2336
4 250000000 disabled N/A 2336
SP-SW-B#sh mls qos interface GigabitEthernet0/2 statistics
GigabitEthernet0/2
Ingress
dscp: incoming no_change classified policed dropped (in bytes)
Others: 0 0 0 0 0
Egress
dscp: incoming no_change classified policed dropped (in bytes)
Others: 0 n/a n/a 0 0
WRED drop counts:
qid thresh1 thresh2 FreeQ
1 : 0 0 1024
2 : 0 0 1024
3 : 0 0 1024
4 : 0 0 1024