Dynamic spanning tree root selection

摘要

Systems, methods, apparatus, and articles of manufacture to provide root re-selection in a spanning tree protocol are disclosed. An example method includes transmitting, from a current root device on a playback network, a query message to a router on the playback network. The example method includes evaluating a response received from at least one intermediate device between the current root and the router, the at least one intermediate device relaying the query message from the root to the router and transmitting a response back to the current root device indicating a root path cost associated with that intermediate device. The example method includes determining, based on the received root path cost(s), an updated designation of a new root device for the playback network. The example method includes, if the new root device is different from the current root device, exchanging bridge priority between the current root and the new root.

主权项

1. A method comprising:
periodically transmitting, from a playback device designated as a current root device on a playback network, a first query message to a router via a first intermediate device on the playback network and a second query message to the router via a second intermediate device on the playback network, the playback network organized according to a spanning tree protocol; evaluating, at the current root device, a first response received from the first intermediate device and a second response received from the second intermediate device, the first and the second intermediate devices relaying the first and the second query messages, respectively, from the current root device to the router, wherein the first response indicates a first root path cost and the second response indicates a second root path cost associated with relaying of the respective first and second query messages from the current root device to the router via the first and the second intermediate devices; determining, at the current root device, based on a comparison of the first and the second root path costs, an updated designation of a new root device for the playback network; and if the new root device is different from the current root device, exchanging, via the current root device, bridge priority between the current root device and the new root device.