Patent ID: 8351431
Filing Date: 2013-01-08
Classification: H04L,Y02D

Abstract:
1. A computer-implemented method in which a Forwarding Data Unit (FDU) performs operations providing a fast re-route of a multicast packet within a network element to an available port associated with a multi-link trunk, the method comprising the steps of: receiving a packet by said FDU in a data plane of a network element; determining that the packet is a multicast packet; forwarding the packet to all egress FDUs having at least one port associated with at least one receiver of the multicast packet, said forwarding including determining if a receiver port is one of the group consisting of a stand alone port, a Multi Link trunk (MLT) group for a local FDU, and a MLT group for a remote FDU and forwarding a copy to each MLT member; and performing a lookup by each egress FDU in a synchronized local port state database to find a port for each receiver that is in an UP state.