Patent ID: 7561524

Claim:
A method for measuring performance of a multi-protocol label switching label switched path (MPLS LSP), comprising the steps of: receiving, at an egress node of the MPLS LSP, an MPLS packet and a separate MPLS OAM packet associated with the MPLS packet; calculating a parity value of the received MPLS packet; comparing the parity value of the received MPLS packet with a parity value of an MPLS packet stored in the MPLS OAM packet associated with the MPLS packet; and when the parity values are not identical, discarding the MPLS packet, increasing the number of generated MPLS packet errors by 1, and storing the number, wherein the parity value of the MPLS packet stored in the MPLS OAM packet is calculated by performing an exclusive logic OR operation on the MPLS packet in units of octet to calculate a value of byte interleaved parity (BIP)-8.