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NE40E V800R010C10SPC500 Configuration Guide - QoS 01

This is NE40E V800R010C10SPC500 Configuration Guide - QoS
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MPLS DiffServ Models Overview

MPLS DiffServ Models Overview

CoS Processing in MPLS DiffServ

The DiffServ model allows transit nodes in a DS domain to check and modify the IP precedence, DSCP, or EXP value, which is called the class of service (CoS). Therefore, the CoS value may vary during packet transmission.

Figure 9-1 CoS Processing in MPLS DiffServ

Carriers need to determine whether to trust the CoS information in an IP or MPLS packet that is entering an MPLS network or is leaving an MPLS network for an IP network. Relevant standards defines three modes for processing the CoS: Uniform, Pipe, and Short Pipe.

Updated: 2019-01-03

Document ID: EDOC1100055024

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