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Layer 2 VPN

  • Support for Layer 2 services on SR-TE tunnels using transport class (PTX10008)—Starting with Junos OS Evolved Release 21.4R1, you can configure the following L2 services on colored and noncolored segment routing–traffic engineering (SR-TE) tunnels using transport classes:

    • L2 circuits

    • L2 VPN

    [See Understanding BGP Classful Transport Planes , Configuring Interfaces for Layer 2 Circuits, and Understanding Layer 2 VPNs.]

  • Layer 2 VPN for FAT label (PTX10001-36MR, PTX10004, PTX10008, and PTX10016)—Starting with Junos OS Evolved Release 21.4R1, we support Flow Aware Transport for Pseudowires (FAT) labels on ingress routers, with parsing that includes all the payload fields in the hash calculation.

    We support the following labels:

    • L2 circuit, LDP-signaled pseudowires

    • L2 VPN, BGP-signaled pseudowires

    • L2 VPN with FEC129 (BGP autodiscovery)

    Enable flow labels using the flow-label-transmit and flow-label-receive statements at the [edit protocols l2circuit neighbor neighbor-id interface interface-name] hierarchy level. Issue the show ldp database extensive command to display database information received from and advertised to the peer. Issue the show l2circuit connections command to see the status of the flow label after an exchange of signaling information.

    [See flow-label-receive and flow-label-transmit.]