Configuring and Applying Rewrite Rules on Transparent Mode Devices

In this example, the logical interface ge-1/0/3.0 is configured as a trunk port that carries traffic for packets tagged with VLAN identifiers 200 through 390. This example creates a rewrite rule rw1 for IEEE 802.1 traffic. For outgoing packets in the forwarding class fc1 with low loss priority, the IEEE 802.1p priority bits are rewritten as 011. The rewrite rule rw1 is applied to interface ge-1/0/3.0.

Before You Begin
For background information, read: Understanding Rewrite of Packet Headers on Transparent Mode Devices Configuring Layer 2 Logical Interfaces

Before You Begin

For background information, read:

CLI Configuration

To configure the ge-1/0/3.0 logical interface as a Layer 2 trunk port:

user@host# set interfaces ge-1/0/3 vlan-tagging unit 0 family bridge interface mode trunk vlan-id list 200–390

To configure the forwarding classes:

user@host# set class-of-service forwarding-classes queue 0 fc1 user@host# set class-of-service forwarding-classes queue 1 fc2 user@host# set class-of-service forwarding-classes queue 3 fc4 user@host# set class-of-service forwarding-classes queue 4 fc5 user@host# set class-of-service forwarding-classes queue 5 fc6 user@host# set class-of-service forwarding-classes queue 6 fc7 user@host# set class-of-service forwarding-classes queue 7 fc8 user@host# set class-of-service forwarding-classes queue 2 fc3

To configure a rewrite rule:

user@host# set class-of-service rewrite-rules ieee-802.1 rw1 forwarding-class fc1 loss-priority low code-point 011

To apply the rewrite rule to the ge-1/0/3.0 interface:

user@host# set class-of-service interfaces ge-1/0/3 unit 0 rewrite-rules ieee-802.1 rw1