This feature allows both type of configuration (precedence or DSCP). Before the implementation of this feature only allows DSCP profiles.The most significant three bits of the DSCP are Class Selector bits, which provides backward compatibility with ip precedence.

We will utilize these DSCP bits to set Precedence. For example when user configure Precedence 101 in CLI, we just need to convert this value to DSCPs(101000 ~ 101111), then normally set the DSCP.

Indicate the standards to be imposed or other all-embracing blanket requirements.

On the basis of already existing DSCP profiles, new precedence profiles are introducing as qos map-profile in this chapter.

The working on these precedence profile is similar to that of DSCP but now we can permit both the configurations according to our requirement.

There are 2 Qos-map Precedence profiles introduced: