Patent ID: 7961613

Claim:
A method of congestion control in an internetwork having a first network and at least plural second networks, the method comprising: establishing a respective packet-in-flight counter for each of the plural second networks; sending a request packet from a node in the first network to any of a plurality of nodes in any one of the plural second networks; incrementing the respective packet-in-flight counter of said any one of the plural second networks based on a request packet being sent to any node in said any one of the plural second networks; decrementing the respective packet-in-flight counter of said any one of the plural second networks to which a request packet is sent based on a response packet being received from any of the plurality of nodes in said any one of the plural second networks; and determining whether a second request packet can be sent from a node of the first network node to any of the plurality of nodes in said any one of the plural second networks based on a value of the respective packet-in-flight counter for said any one of the plural second networks.