Hitless Maintenance of a L3 Network
AssigneeHewlett Packard Enterprise Development LP
InventorsA. Keshava, Anil Raj
Life of this patent
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Abstract
A method for use in exiting a portion of a node from an Internet Protocol, Layer 3 network includes: preparing the network for the portion to exit prior to the exit, including: notifying a set of peer nodes of the portion's exit; and rerouting traffic in the network away from the portion to the set of peer nodes; exiting the portion from the network once the traffic is rerouted; and reintroducing the exited portion to the network, including: notifying the peer nodes of the portion's reintroduction; and rerouting at least some of the traffic through the re-introduced portion.
Claims20
A method for use in exiting a portion of a node from an Internet Protocol, Layer 3 network, comprising:
- preparing the network for the portion to exit prior to the exit, including:
- notifying a set of peer nodes of the portion's exit;
- and
- rerouting traffic in the network away from the portion to the set of peer nodes;
- exiting the portion from the network once the traffic is rerouted;
- and
- reintroducing the exited portion to the network, including:
- notifying the peer nodes of the portion's reintroduction;
- and
- rerouting at least some of the traffic through the re-introduced portion.
An Internet protocol, Layer 3 network, comprising:
- a plurality of networks;
- a plurality of nodes across which the networks are distributed;
- a processor;
- a maintenance manager that, when executed by the processor, performs a method comprising:
- network notifying a set of peer nodes in the network for an exit for a portion of a node;
- rerouting traffic in the network away from the portion to the set of peer nodes;
- exiting the portion from the network once the traffic is rerouted;
- and
- reintroducing the exited portion to the network, including:
- notifying the peer nodes of the portion's reintroduction;
- and
- rerouting at least some of the traffic through the re-introduced portion.
A non-transitory computer-readable medium storing computer-executable instructions that when executed by a computer cause the computer to:
- network notify a set of peer nodes in a network for an exit for a portion of a node;
- and
- reroute traffic in the network away from the portion to the set of peer nodes;
- exit the portion from the network once the traffic is rerouted;
- and
- reintroduce the exited portion to the network, including:
- notifying the peer nodes of the portion's reintroduction;
- and
- rerouting at least some of the traffic through the re-introduced portion.
Dependencies are inferred from the claim text.