Openflow switch mode transition processing
First Claim
Patent Images
1. A method comprising:
- losing a connection with a controller by a switch device;
transitioning from an OpenFlow switching mode to a legacy switching mode by the switching device in response to losing the connection with the controller;
transferring flow entries of the switch device to one or more switch forwarding tables; and
notifying network application protocols that correspond to the transferred flow entries,wherein flooding is decreased based on processing incoming packets using the flow entries stored in the forwarding tables.
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Abstract
Embodiments of the invention relate to switch mode transition and processing upon loss of controller communication. One embodiment includes losing a connection with a controller by a switch device, entering a particular mode by the switch device, transferring flow entries of the switch device to one or more tables, and notifying network application protocols that correspond to the transferred flow entries.
21 Citations
12 Claims
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1. A method comprising:
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losing a connection with a controller by a switch device; transitioning from an OpenFlow switching mode to a legacy switching mode by the switching device in response to losing the connection with the controller; transferring flow entries of the switch device to one or more switch forwarding tables; and notifying network application protocols that correspond to the transferred flow entries, wherein flooding is decreased based on processing incoming packets using the flow entries stored in the forwarding tables. - View Dependent Claims (2, 3, 4)
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5. A computer program product for switch device processing upon communication loss, the computer program product comprising a computer readable storage medium having program code embodied therewith, the program code readable/executable by a processor to perform a method comprising:
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losing a connection with a controller by a switch device; transitioning from an OpenFlow switching mode to a legacy switching mode by the switching device in response to losing the connection with the controller; transferring flow entries of the switch device to one or more switch forwarding tables; and notifying network application protocols that correspond to the transferred flow entries, wherein flooding is decreased based on processing incoming packets using the flow entries stored in the forwarding tables. - View Dependent Claims (6, 7, 8)
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9. A system comprising:
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a controller device; and a plurality of connected switch devices coupled with the controller, wherein upon a particular switch device losing communication with the controller, the particular switch device; transitions from an OpenFlow switching mode to a legacy switching mode; transfers one or more flow entries to one or more switch forwarding tables; and notifies one or more network application protocols that correspond to the transferred one or more flow entries wherein flooding is decreased based on processing incoming packets using the flow entries stored in the forwarding tables. - View Dependent Claims (10, 11, 12)
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Specification