Maximum transmission unit installation for network traffic along a datapath in a software defined network
AssigneeHewlett Packard Enterprise Development LP
InventorsAnil Raj, Celestian K. SEBASTIAN
Life of this patent
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Abstract
In some examples, a maximum transmission unit (MTU) is installed by a Software-Defined Network (SDN) controller on a controlled network node for traffic along a datapath in an SDN. The installed MTU can, for example, be selected from MTU sizes in an MTU database for nodes along the datapath. For example, the installed MTU can be selected as the largest allowable MTU size based on the nodes of the datapath.
Claims15
A method comprising:
- determining, from a maximum transmission unit (MTU) database and with a software-defined network (SDN) controller in an SDN, MTU sizes for nodes along a datapath in the SDN;
- selecting one of the determined MTU sizes as the largest allowable MTU size for the datapath;
- and
- installing, on a controlled node along the datapath, the largest allowable MTU size as the MTU size for traffic along the datapath.
A software-defined network (SDN) controller comprising:
- an access module to access a maximum transmission unit (MTU) database that includes stored MTU values for nodes along a datapath between a source node and a destination node in an SDN;
- a MTU size determination module to determine, based on accessed values from the MTU database, a largest allowable MTU size for the datapath;
- and
- a communication module to provide the largest allowable MTU size to a controlled node along the datapath with instructions for the controlled node to install the largest allowable MTU size as an MTU for traffic along the data path.
A non-transitory machine-readable storage medium encoded with instructions executable by a processor of a software-defined network (SDN) controller, the instructions comprising:
- instructions to determine, based on maximum transmission unit (MTU) size values stored in an MTU database, MTU size values for nodes along a datapath in the SDN;
- instructions to store the smallest MTU size among the determined MTU sizes as the largest allowable MTU size for the datapath;
- and
- instructions to install, on a node controlled by the SDN controller along the datapath, the largest allowable MTU size as the MTU size for traffic along the data path.
Dependencies are inferred from the claim text.