Spanning tree protocol (STP) implementation on an event driven virtual link aggregation (VLAG) system

摘要

In one embodiment, a system includes a first networking system and a second networking system, each system having a plurality of physical networking ports, a controller, and a memory subsystem, with a first logical port being formed using one or more of the first system's plurality of physical networking ports, a second logical port being formed using one or more of the second system's plurality of physical networking ports, logic adapted to form a third logical port using the first logical port and the second logical port, wherein the first system's controller includes logic adapted to store a first networking protocol state information corresponding to a third logical port using the first memory subsystem and to communicate the first networking protocol state information to the second networking system, with the second system's controller being adapted to store the first networking protocol state information.

主权项

1. A system, comprising:
a first networking system, comprising:
a first plurality of physical networking ports;a first controller comprising a hardware processor configured to form a first logical port using one or more of the first plurality of physical networking ports; anda first memory subsystem, wherein the first controller is configured to:
form a third logical port using the first logical port and a second logical port of a second networking system;store a first networking protocol state information corresponding to the third logical port using the first memory subsystem, wherein the first networking protocol state information includes an indication of whether the first networking system is configured to communicate with the second networking system via an interswitch link (ISL); andcommunicate the first networking protocol state information to the second networking system, and wherein the first networking system is configured to:
maintain the first networking, protocol state information corresponding to the third logical port using the first networking protocolconfigure at least one physical port of the first of physical networking ports using the first networking protocol;generate the first networking protocol state information corresponding to the third logical port using spanning tree protocol (STP), the third logical port comprising a virtual link aggregation (vLAG), an instance of the vLAG being static;monitor a formation state of the first logical port using at least one parameter value associated with the one or more of the first plurality of physical networking ports;maintain the formation state of the first logical port based on at least one active physical port of the one or more of the first plurality of physical networking ports;monitor a formation state of the third logical port;update the first networking protocol state information and store the updated first networking protocol state information using the first memory subsystem; andcommunicate the updated first networking protocol state information to the second networking system via an ISL that couples the first networking system to the second networking system.