Layer 3 ingress packet classification and egress rewrite rule class-of-service features

Layer 3 ingress packet classification and egress rewrite rules enable you to prioritize and manage traffic quality across your network. You can use classifiers to examine incoming packets at the network edge and assign each packet to a forwarding class with a corresponding loss priority, based on DSCP or IP precedence code point bits. As packets exit the network, you can apply rewrite rules to re-mark the code point bits in outgoing packet headers, ensuring that downstream devices apply the appropriate level of service. The goal is to give you consistent, end-to-end traffic treatment that meets the policies of targeted peers and service groups.