Replicating broadcast, unknown-unicast, and multicast traffic in overlay logical networks bridged with physical networks
First Claim
1. A system comprising:
- a plurality of host machines, wherein each host machine implements a tunnel endpoint in a particular overlay logical network, the tunnel endpoint being a member of a multicast group; and
at least one physical gateway that connects a set of physical machines coupled to the physical gateway to the particular overlay logical network, wherein when the physical gateway receives a message from one of the physical machines that has to be forwarded to all members of the multicast group, the physical gateway sends the received message as an encapsulated packet of the overlay logical network to a designated host machine in the plurality of host machines, wherein the designated host machine replicates the message to all members of the multicast group for the physical gateway.
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Accused Products
Abstract
A novel method for performing replication of messages in a network that bridges one or more physical networks to an overlay logical network is provided. A physical gateway provides bridging between network nodes of a physical network and virtual machines in the overlay logical network by serving as an endpoint of the overlay logical network. The physical gateway does not replicate messages from the bridged physical network to destination endpoints in the overlay logical network directly, but instead tunnels the message-to-be-replicated to a designated tunnel endpoint in the overlay logical network. The designated tunnel endpoint in turn replicates the message that was tunneled to it to other endpoints in the overlay logical network.
95 Citations
20 Claims
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1. A system comprising:
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a plurality of host machines, wherein each host machine implements a tunnel endpoint in a particular overlay logical network, the tunnel endpoint being a member of a multicast group; and at least one physical gateway that connects a set of physical machines coupled to the physical gateway to the particular overlay logical network, wherein when the physical gateway receives a message from one of the physical machines that has to be forwarded to all members of the multicast group, the physical gateway sends the received message as an encapsulated packet of the overlay logical network to a designated host machine in the plurality of host machines, wherein the designated host machine replicates the message to all members of the multicast group for the physical gateway. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for a system comprising a plurality of host machines, each host machine implementing a tunnel endpoint in a particular overlay logical network, the tunnel endpoint being a member of a multicast group, the method comprising:
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connecting, at a physical gateway, a set of physical machines to the particular overlay logical network, receiving, at the physical gateway, a message from one of the physical machines that has to be forwarded to all members of the multicast group, and sending, at the physical gateway, the received message as an encapsulated packet of the overlay logical network to a designated host machine in the plurality of host machines, wherein the designated host machine replicates the message to all members of the multicast group for the physical gateway. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification