3Com Router 3000 Ethernet Family
Configuration Guide
Impose the incoming bandwidth constraint on the MPLS edge router to classify the
incoming traffic.
Adopt CAR on the edge devices so that they can share the work of bandwidth
management.
The MPLS core router accomplishes CoS management to implement Diff-serv
QoS.
The egress device, like the ingress device, implements bandwidth restriction. The
bandwidth restriction implemented by the ingress and egress devices protects the
network from congestion and hence significantly improves the network scalability.
For more details, see QoS section.
3Com Corporation
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Chapter 1 MPLS Architecture