Patent ID: 9509614
Filing Date: 2016-11-29
CPC Classification: H04L

Claim Text:
1. A method, comprising: receiving a packet at one of a plurality of second stage load-balancers in a network, wherein the packet is forwarded from a first stage load-balancer to the second stage load balancer according to a hash based forwarding scheme; and routing the packet, by the second stage load-balancer to one of a plurality of servers in the network according to a per-session routing scheme that comprises, at least, retrieving a session routing state from a distributed hash table (DHT) in the network, wherein the DHT is distributed among the plurality of second stage load-balancers, wherein the session routing states are maintained in the DHT using leases, wherein the session routing state comprises a data structure including a next hop for the packet associated with a session to which the packet belongs.