Delegate segment routing LSPs to a PCE

You can enable a Path Computation Client (PCC) to delegate locally configured IPv4 non-colored segment routing LSPs to a Path Computation Element (PCE) controller. The PCE controls the delegated LSPs and can modify LSP attributes for traffic steering. A PCC with delegation capability can take back control of the delegated segment routing LSPs from the PCE when the PCEP session goes down; the LSPs would otherwise be deleted from the PCC. You can thus ensure LSP data protection by averting a situation where packets are silently discarded or dropped (also known as a traffic null route condition).