L2VPN FAT SUPPORT

This chapter contains configurations of L2VPN with FAT support.

The Flow-Aware Transport (FAT) of pseudowire (PW) over an MPLS packet-switched network facilitates the load-balancing of traffic across LDP or BGP based signaled pseudowire for Virtual Private LAN Services (VPLS) and LDP-based signaled pseudowire for Virtual Private Wire Service (VPWS).

For interoperability cases, the Flow Label must be configured using the interface-param-tlv option to ensure proper exchange of parameters between peers.
The following CLI options are available for this purpose:
flow-label transmit interface-param-tlv
flow-label receive interface-param-tlv
flow-label both interface-param-tlv

Topology

Figure 44. L2VPN configuration topology