Patent ID: 8948032
Filing Date: 2015-02-03
Classification: H04L

Abstract:
1. A method comprising: receiving, by a local router from a local layer two (L2) network coupled to the local router via an attachment circuit for a Virtual Private Local Area Network (LAN) Service (VPLS) instance, a plurality of L2 packet data units (PDUs); sending, by the local router via a first pseudowire to a first remote router, each of the plurality of PDUs; sending, by the local router via a second pseudowire to a second remote router that is different from the first remote router, each of the plurality of PDUs, wherein the first pseudowire and the second pseudowire operate over a layer three (L3) packet-switched network to transport the plurality of PDUs for the VPLS instance; applying, by the local router, a first pseudowire label policer to increment a first transit counter associated with the first pseudowire for each of the plurality of PDUs that the local router sends via the first pseudowire to the first remote router; applying, by the local router, a second pseudowire label policer to increment a second transit counter associated with the second pseudowire for each of the plurality of PDUs that the local router sends via the second pseudowire to the second remote router; receiving, by the local router from the first remote router, a first receipt counter value for the first pseudowire that indicates a count of PDUs received by the first remote router from the local router via the first pseudowire; receiving, by the local router from the second remote router, a second receipt counter value for the second pseudowire that indicates a count of PDUs received by the second remote router from the local router via the second pseudowire; determining pseudowire packet loss data for the first pseudowire computing a first difference value between a first transmit counter value of the first transmit counter and the first receipt counter value and for the second pseudowire by computing a second difference value between a second transmit counter value of the second transmit counter and the second receipt counter value; and sending the pseudowire packet loss data including the first difference value for the first pseudowire and the second difference value for the second pseudowire from the local router to a management entity.