Patent ID: 8861335

Claim:
A method of interfacing a Client System (CS) with a network domain, the CS including an Aggregator function for load spreading ingress traffic originating from the CS across two or more parallel links of a Link Aggregation Group (LAG), the method comprising: providing a set of two or more peer edge nodes of the network domain, each one of the set of peer edge nodes including: a local LAG port hosting a corresponding LAG link connected to the CS; and at least one port hosting an inter-node trunk connecting the node to each of the other ones of the set of peer edge nodes; assigning a media access control (MAC) address to the LAG; computing a respective path through the network domain from each peer edge node to at least one predetermined destination address, for carrying traffic to or from the CS; and at each peer edge node, installing forwarding state such that: ingress traffic received from the CS is forwarded, including the MAC address assigned to the LAG as a source address, via the path to the at least one predetermined destination address; and egress traffic having the MAC address assigned to the LAG as a destination address is forwarded to the CS via the local LAG port, if the local LAG port is operational, and otherwise via the inter-node trunk to another one of the set of peer edge nodes.