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A TECHNIQUE FOR EFFICIENTLY MANAGING BANDWIDTH REGISTRATION FOR MULTIPLE SPANNING TREE OPTIONS
A TECHNIQUE FOR EFFICIENTLY MANAGING BANDWIDTH REGISTRATION FOR MULTIPLE SPANNING TREE OPTIONS
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机译:有效管理多个跨树选项的带宽注册的技术
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摘要
A technique efficiently manages bandwidth (BW) registration for multiple spanning tree options in a computer network. According to the novel technique, an entry bridge determines multiple spanning tree paths to other bridges of the network (namely, one or more available spanning trees rooted at one or more bridges of the network) and determines a utilized (registered) BW on each of those paths. Upon receiving a request to initiate BW registration for a data flow to a destination end point, e.g., from an application source end point, the entry bridge selects one of the spanning tree paths to utilize for the data flow. Selection of the spanning tree path from among the multiple available paths may be based on (i) available bandwidth of the paths, (ii) a shortest of the paths, and (iii) a lowest bridge identifier ID for the bridge root for the path. The entry bridge sends a registration message for the data flow towards the destination end point along the selected spanning tree path. If successful, the data flow is transmitted on the selected path. If not, the entry bridge attempts to register the data flow on a next best alternate spanning tree, e.g., until a successful registration or until a determination that no further alternate spanning trees exist.
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