Patent ID: 8918525

Claim:
An apparatus comprising: at least one processor; and one or more media including processor-executable instructions that are capable of being executed by the at least one processor, the processor-executable instructions adapted to direct the apparatus to perform actions comprising: receiving a session message requesting a connection at a network gateway; determining if the received session message includes a received session identifier; identifying the received session message as a session continuation message requesting continuation of a previously established session corresponding to a session context at an associated host-based at least on the received session message including the received session identifier; extracting a host identifier from the received session identifier of the session continuation message, the host identifier identifying the associated host and being unique to the associated host across a plurality of hosts belonging to a cluster of hosts and the host identifier not being unique as to another host belonging to another cluster of hosts; routing the connection being requested at the routing operation to the associated host using a table with a bounded number of entries by: routing traffic for a session to which the received session identifier is assigned responsive to the host identifier; and routing the session continuation message using the table, wherein the number of entries in the table equals the plurality of hosts belonging to the cluster of hosts.