EtoPE QoS for Frame Relay Access PE Inbound

The figure shows the QoS configurations on the ingress PE router inbound interface to implement the required QoS policy that is required for each of the three service provider traffic classes.

In this case, a traffic policy called "IN-POLICY" is configured to provide the required class-based policing. For the premium class, the rate limit is set to 25 percent of the link bandwidth. All exceeding premium-class traffic is dropped. For the business class, the rate limit is set to 38 percent of the link bandwidth. All exceeding and violating business-class traffic is re-marked with a higher drop probability, then sent. The default class is not policed.

The "IN-POLICY" traffic policy is applied within the Frame Relay map class.

CE-to-PE QoS for Frame Relay Access PE Inbound (Cont.)

The figure is similar to the previous figure except that the service provider core is now Multiprotocol Label Switching (MPLS) instead of Frame Relay. The differences are the markings within the traffic policy. In this case, a traffic policy called "IN-POLICY" is configured to provide the required class-based policing. The premium-class and business-class traffic is policed and then marked with these MPLS experimental bits:

■ All conforming premium traffic is marked with MPLS Experimental 5, then sent.

■ All exceeding premium traffic is dropped.

■ All conforming business traffic is marked with MPLS Experimental 4, then sent.

■ All exceeding business traffic is marked with MPLS Experimental 3, then sent.

■ All violating business traffic is marked with MPLS Experimental 2, then sent.

■ The best-effort class traffic is not policed but just marked with MPLS Experimental 0.

The "IN-POLICY" traffic policy is applied within the Frame Relay map class.

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