Option: Configuring Layer 2 Circuits Simultaneously over RSVP
and LDP LSPs
You can configure a Layer 2
circuit simultaneously over an RSVP LSP and an LDP LSP between the
same two routers. To accomplish this, do the following:
Configure two loopback addresses—a primary and a
secondary loopback.
Configure the RSVP LSP using the primary loopback address.
Configure the LDP LSP using the secondary loopback address.
You can accomplish this by advertising the secondary loopback address
as a forwarding equivalence class (FEC) in LDP.
Configure the transport tunnel endpoint (also known as
a packet-switched network [PSN] tunnel endpoint in the IETF drafts)
to be used for transporting the Layer 2 circuit traffic. To configure
the tunnel endpoint, include the psn-tunnel-endpoint statement
at the [edit protocols l2circuit] hierarchy level. By default,
the tunnel endpoint is the same as the address of the Layer 2 circuit
neighbor.
To verify that your configuration is operational,
issue the show l2circuit connections command. This command
has been enhanced to display tunnel endpoints. For more information
about configuring Layer 2 circuits simultaneously over RSVP and LDP
LSPs, see the JUNOS VPNs Configuration Guide.
