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MPLS

  • RSVP-TE supports preempting secondary LSPs that are signaled but not active (MX Series and PTX Series)—Starting in Junos OS Release 21.2R1, you can preempt secondary LSPs that are signaled but not active and configure the hold priority of the secondary standby label-switched path (LSP) for RSVP-Traffic Engineering (RSVP-TE). This helps to bring up non-standby secondary path LSPs with higher setup priority which are not able to come-up because of bandwidth crunch. To configure the non-active hold priority value for a secondary standby path, use the non-active-hold-priority statement at the [edit protocols mpls label-switched-path <lsp-name> secondary <path-name>] hierarchy level. You can set the priority from 0 through 7, where 0 is the highest priority and 7 is the lowest.

  • Support for 128 primary paths per static segment routing LSP (MX Series and PTX Series)—Starting in Junos OS 21.2R1, we've increased the maximum number of segment-list bindings to an LSP tunnel from 8 to 128, with not more than 1000 tunnels per system. A maximum of 128 primary paths are supported per static segment routing LSP.

    [See Static Segment Routing LSP Limitations.]