Patent ID: 8958298
Filing Date: 2015-02-17
Classification: H04L

Abstract:
1. For a network controller that manages a network, a method for configuring a plurality of network elements in the network to logically route packets between a first logical domain and a second logical domain, the method comprising: configuring a first plurality of edge managed switching elements to perform logical switching for the first logical domain and a second plurality of edge managed switching elements to perform logical switching for the second logical domain; configuring a particular managed switching element, not in either the first or second pluralities of managed switching elements, that operates in a host machine as a second-level managed switching element to perform logical switching for the first logical domain and the second logical domain; configuring a namespace in the host machine to operate as a logical router for handling packets with logical addresses sent from one of the first logical domain and the second logical domain to the other one of the first logical domain and the second logical domain, wherein the second-level managed switching element is configured to forward to the namespace packets sent from one of the first and second logical domains to the other of the first and second logical domains, wherein the namespace is configured to route packets sent from one of the first and second logical domains to the other of the first and second logical domains and return the routed packets to the second-level managed switching element in the host machine, wherein the namespace is configured to handle packets by configuring a routing table in the namespace.