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Classifiers and Rewrite Rules at the Global, Physical, and Logical Interface Levels Overview

On ACX Series Universal Metro Routers and EX Series switches, CoS supports classification and rewrite at the global level and physical interface levels.

Note:

The ACX6360 router does not support rewrite rules or Layer 2 (IEEE802.1p and IEEE802.1ad) classifiers.

Note:

ACX7100 routers support classification and rewrite rules of all types (Inet-Prec/DSCP/DSCP-v6/IEEE-802.1p/IEEE-802.1ad) at the logical interface level.

At a global level, you can define EXP classification.

At a physical interface level, you can define the following features:

  • DSCP, DSCP-IPV6, and IPv4 precedence classifiers

  • DSCP, DSCP-IPV6, and IPv4 precedence rewrites

  • IEEE 802.1p and IEEE 802.1ad classifiers (inner and outer)

  • IEEE 802.1p and IEEE 802.1ad rewrites (outer)

The IEEE 802.1ad classifier uses IEEE 802.1p and DEI bits together.

Note:

You cannot configure both IEEE 802.1p and IEEE 802.1ad classifiers together at the physical interface level.

At a logical interface level, you can define the fixed classification and EXP rewrites.

To configure global EXP classifiers, include the classfiers exp classifier-name statement at the [edit class-of-service system-defaults] hierarchy level.

To configure classifiers or rewrite rules at the physical interface, include either the classifiers statement or the rewrite-rules statement at the [edit class-of-service interfaces interface-name] hierarchy level.

To configure fixed classifiers at the logical interface, include the forwarding-class fc] or the rewrite-rules statement at the [edit class-of-service interfaces interface-name unit number] hierarchy level.

To configure EXP rewrite at the logical interface, include the [edit class-of-service interfaces interface-name unit number rewrite-rules exp rewrite-rule] statement.

To display classifiers configured under system-defaults, enter the show class-of-service system-defaults command.

To display classifiers and rewrite rules bound to physical interfaces, enter the show class-of-service interfaces interface-name command.