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US 10,541,874 B2Granted
Method and system for spanning tree protocol role protection
AssigneeArista Networks, Inc.
InventorAdam James Sweeney
Life of this patent
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Abstract
In general, embodiments of the invention relate to configuring network elements to prevent the formation of logical loops in a network. More specifically, embodiments of the invention provide a mechanism to associate a port policy with all or a portion of the ports of a network element and to enforce certain types of behavior.
Claims26
A method for managing ports on a network element, comprising:
- receiving a notification of a port transition for a port of a plurality of ports on the network element, wherein the port is associated with a port role and a port state determined using a spanning tree protocol engine executing on the network element;
- making a determination that the port transition conflicts with a port policy of the port;
- in response to the determination:
- disabling the port;
- re-enabling the port in response to an enabling event;
- and
- after re-enabling the port, managing the port using the spanning tree protocol engine.
4 more elements
A network element, comprising:
- a plurality of ports;
- and
- a spanning tree protocol engine and a policy engine;
- wherein the spanning tree protocol engine is programmed to:
- prior to disabling a port, manage, using a spanning tree protocol, a port role and a port state for the port of the plurality of ports;
- and
- wherein the policy engine is configured to:
- receive a notification of port transition for the port;
- make a determination that the port transition conflicts with a port policy of the port;
- in response to the determination:
- initiate disabling of the port;
- and
- initiate enabling of the port after an enabling event, wherein the port is managed using the spanning tree protocol engine after the enabling event.
10 more elements
A non-transitory computer readable medium comprising instructions, which when executed by processor perform a method, the method comprising:
- receiving a notification of a port transition for a port of a plurality of ports on a network element, wherein the port is associated with a port role and a port state determined using a spanning tree protocol engine executing on the network element;
- making a determination that the port transition conflicts with a port policy of the port;
- in response to the determination:
- disabling the port;
- re-enabling the port in response to an enabling event;
- and
- after re-enabling the port, managing the port using the spanning tree protocol engine.
4 more elements
Dependencies are inferred from the claim text.