SR OS router procedures on receiving a PCInitiate message

Procedure

  1. If a PCInitiate message includes a name that is a duplicate of an existing LSP on the router, the system generates an error.
  2. The router assigns a PLSP-ID and looks up the specified PCE-initiated LSP template ID, if any, or the default PCE-initiated LSP template, to retrieve the local parameters, and instantiates the SR-TE LSP. This lookup uses the PATH-PROFILE-ID TLV if that is included in the PCInitiate message, or the Association ID of the Policy ASSOCIATION object if that is included in the PCInitiate message.
  3. The instantiated LSP is added to the TTM and is used by all applications that look up a tunnel in the TTM.
  4. The router crafts a PCRpt message with the Tunnel-ID, LSP-ID, and the RRO and passes it along with the PLSP-ID set to the assigned value and the delegation bit set in the LSP object to the PCE.
Parent topic: LSP instantiation using PCEP