Configuring flow label for a PW profile

Configuring flow label for a pseudowire (PW) profile improves load balancing of PW traffic over an MPLS network.

Before completing the following task, the PW profile on which flow label is to be enabled must be configured. An example is provided at the end of this task that shows all the steps in order.

Flow label configuration improves load balancing of PW traffic over an MPLS network, particularly in the context of PWs that transport high volumes of traffic that are comprised of multiple individual traffic flows (for example, the same source-destination pair for a Transport Control Protocol (TCP) connection is an individual traffic flow).

Perform the following task to configure flow label for a PW profile.

From privileged EXEC mode, enter global configuration mode.
```
device# configure terminal
```
Enter PW profile configuration mode.
```
device(config)# pw-profile pw_example
```

Enable flow label for the PW profile.

device(config-pw-profile-pw_example)# flow-label

Example

The following example shows how to configure a PW profile and enable flow label on the profile. It then shows how to attach the PW profile to a bridge domain.

device# device# configure terminal
device(config)# pw-profile pw_example
device(config-pw-pw_example)# vc-mode tag
device(config-pw-pw_example)# mtu 1300
device(config-pw-pw_example)# mtu-enforce true
device(config-pw-pw_example)# flow-label
device(config-pw-pw_example)# exit

device(config)# bridge-domain 5
device(config-bridge-domain-5)# pw-profile pw_example