Modular QoS Deployment Scenarios on Cisco ASR 9000 Series Routers
L2VPN QoS
QC-170
Cisco ASR 9000 Series Aggregation Services Router Modular Quality of Service Configuration Guide
OL-23108-02
Frame Relay <-> Ethernet Over Pseudowire: Example
This example shows that you can match based on the fr-de value on the ingress Frame Relay l2transport
interface on router PE1 and set a specific MPLS EXP value. When the MPLS packet exits the PE1 core
interface, this EXP value is set. When the packet exits router PE2 through the Ethernet l2transport
interface, this value is part of the Ethernet packet CoS field.
This configuration allows you to carry over or map the QoS field from the Frame Relay network to the
Ethernet network.
Figure 2 shows the network topology.
Figure 2 IP Interworking Over MPLS
CE1
interface pos0/2/0/0.26
pvc 26
ipv4 add 10.0.0.1 255.0.0.0
PE1
interface pos0/2/0/0.26 l2transport
pvc 26
l2vpn
xconnect group freth
p2p p1
interface pos0/2/0/0.26
neighbor y.y.y.y pw-id 1001
interworking ipv4
!QoS Policy
class-map matchfrde
match fr-de 1
policy-map setexp
class matchfrde
set mpls exp imposition 5
interface pos0/2/0/0.26 l2transport
pvc 26
service-policy input setexp
PE2
interface gig0/4/0/0.26 l2transport
encapsulation dot1q 100
l2vpn
xconnect group freth
p2p p1
interface gig0/4/0/0.26
neighbor x.x.x.x pw-id 1001
interworking ipv4
CE1 PE1 PE2 CE2
Frame Relay Ethernet
208569
MPLS cloud
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