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Allowing Non-Packet GMPLS LSPs to Establish Paths Through a JUNOS-based Router

You can allow non-packet GMPLS LSPs to establish paths through JUNOS-based routers by setting the A-bit in the Admin Status object. When an ingress router sends an RSVP PATH message with the Admin Status A-bit set, an external device (not a JUNOS software-based router) can either perform a Layer 1 path setup test or help bring up an optical cross-connect.

When set, the A-bit in the Admin Status object indicates the administrative down status for an LSP. This feature is used specifically by non-packet GMPLS LSPs. It does not affect control path setup or data forwarding for packet LSPs.

The JUNOS software does not distinguish between the control path setup and data path setup. Other nodes along the network path use RSVP PATH signaling using the A-bit in a meaningful way.

To configure the Admin Status object for a GMPLS LSP, include the admin-down statement:




admin-down;

You can include this statement at the following hierarchy levels:

[edit protocols mpls label-switched-path lsp-name]
[edit logical-systems logical-system-name protocols mpls label-switched-path lsp-name]

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