US Patent No. 10,326,613
METHOD AND SYSTEM FOR PROCESSING SPANNING TREE PROTOCOL (STP) STATE IN A MULTICHASSIS LINK AGGREGATION (MLAG) DOMAIN
| Patent No. | 10,326,613 |
|---|---|
| Issue Date | June 18, 2019 |
| Title | Method And System For Processing Spanning Tree Protocol (stp) State In A Multichassis Link Aggregation (mlag) Domain |
| Inventorship | Jeevan Kamisetty, San Jose, CA (US) Soumen Biswas, San Jose, CA (US) |
| Assignee | Arista Networks, Inc., Santa Clara, CA (US) |
Claim of US Patent No. 10,326,613
1. A method for processing spanning tree protocol (STP) state in a multichassis link aggregation (MLAG) domain, comprising:receiving, by an active MLAG peer of the MLAG domain, a first bridge protocol data unit (BPDU) from a first external computing system (ECS) operatively connected to the MLAG domain;
deriving a first STP state from the first BPDU;
making a first determination that the first STP state is different from a previous STP state;
processing, based on the first determination, the first STP state to obtain a first new STP state;
receiving, by the active MLAG peer, a second STP state from a standby MLAG peer of the MLAG domain through a MLAG peer link;
processing the second STP state to obtain a second new STP state; and
transmitting the second new STP state to the standby MLAG peer through the MLAG peer link.
deriving a first STP state from the first BPDU;
making a first determination that the first STP state is different from a previous STP state;
processing, based on the first determination, the first STP state to obtain a first new STP state;
receiving, by the active MLAG peer, a second STP state from a standby MLAG peer of the MLAG domain through a MLAG peer link;
processing the second STP state to obtain a second new STP state; and
transmitting the second new STP state to the standby MLAG peer through the MLAG peer link.