ADDRESS CACHE FOR TUNNEL ENDPOINT ASSOCIATED WITH AN OVERLAY NETWORK
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United States of America Patent
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app pub date -
Jun 3, 2015
filing date -
Apr 3, 2015
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Abstract
In some examples, a method includes receiving an address resolution broadcast request from a first virtual machine hosted with a network tunnel endpoint associated with an overlay network. The address resolution broadcast request may include a target internet protocol (IP) address of a second virtual machine to resolve. The method may also include parsing the address resolution broadcast request to identify the target IP address and accessing an address cache maintained by the tunnel endpoint to identify a particular MAC address of the second virtual machine that maps to the target IP address. The method may also include, without broadcasting the address resolution broadcast request to other virtual machines in the overlay network, generating an address resolution response indicating that the target IP address maps to the particular MAC address and sending the address resolution response to the first virtual machine hosted with the tunnel endpoint.
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