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1. 发明授权

EP1728358B1 CELL BASED WRAPPED WAVE FRONT ARBITER (WWFA) WITH BANDWIDTH RESERVATION 有权
标题翻译： WITH带宽预留基于细胞包裹WELLENFRONTARBITER
公开(公告)号：EP1728358B1
公开(公告)日：2007-12-19
申请号：EP03810824.7
申请日：2003-10-31
申请人： Tellabs Operations, Inc.
发明人： BODUCH, Mark, E. , RANCICH, David
IPC分类号： H04L12/56
CPC分类号： H04L49/254 , H04L47/50 , H04L49/101 , H04L49/3009
摘要： Systems and methods for cell-based wrapped wave front arbiter (WFFA) with bandwidth reservation are disclosed. The method for reserving bandwidth of a given priority using the WWFA for arbitrating bandwidth among virtual links between input and output ports, each link supporting priorities and corresponding to an arbitration unit (AU) of the WWFA generally includes performing at least one arbitration pass of a wave front of the WWFA where AUs having a reserved bandwidth request of a given priority and reserved bandwidth credit of the given priority compete for the bandwidth associated with the wave front, and where AUs not having a reserved bandwidth request of the given priority and reserved bandwidth credit of the given priority do not compete for the bandwidth, and performing at least one subsequent arbitration pass where AUs having a reserved bandwidth request of the given priority compete for the bandwidth. Each virtual link perferably supports a high priority and a low priority such that the WWFA performs four passes. Each priority of each virtual link may be associated with a bandwidth credit accumulator register indicating the level of remaining reserved bandwidth credit, a reserved bandwidth weight register for programming a predetermined level of reserved bandwidth, a request counter register for tracking the number of bandwidth requests, a rate counter register that is periodically incremented to generate reserved bandwidth credits for the bandwidth credit accumulator register, and an optional burst register having a predetermined value for limiting the maximum value of the bandwidth credit accumulator register.

2. 发明公开

EP1728358A2 CELL BASED WRAPPED WAVE FRONT ARBITER (WWFA) WITH BANDWIDTH RESERVATION 有权
标题翻译： ZELLBASIERTER UMWICKELTER WELLENFRONTARBITER MIT BANDBREITENRESERVIERUNG
公开(公告)号：EP1728358A2
公开(公告)日：2006-12-06
申请号：EP03810824.7
申请日：2003-10-31
申请人： Tellabs Operations, Inc.
发明人： BODUCH, Mark, E. , RANCICH, David
IPC分类号： H04L12/56
CPC分类号： H04L49/254 , H04L47/50 , H04L49/101 , H04L49/3009
摘要： Systems and methods for cell-based wrapped wave front arbiter (WFFA) with bandwidth reservation are disclosed. The method for reserving bandwidth of a given priority using the WWFA for arbitrating bandwidth among virtual links between input and output ports, each link supporting priorities and corresponding to an arbitration unit (AU) of the WWFA generally includes performing at least one arbitration pass of a wave front of the WWFA where AUs having a reserved bandwidth request of a given priority and reserved bandwidth credit of the given priority compete for the bandwidth associated with the wave front, and where AUs not having a reserved bandwidth request of the given priority and reserved bandwidth credit of the given priority do not compete for the bandwidth, and performing at least one subsequent arbitration pass where AUs having a reserved bandwidth request of the given priority compete for the bandwidth. Each virtual link perferably supports a high priority and a low priority such that the WWFA performs four passes. Each priority of each virtual link may be associated with a bandwidth credit accumulator register indicating the level of remaining reserved bandwidth credit, a reserved bandwidth weight register for programming a predetermined level of reserved bandwidth, a request counter register for tracking the number of bandwidth requests, a rate counter register that is periodically incremented to generate reserved bandwidth credits for the bandwidth credit accumulator register, and an optional burst register having a predetermined value for limiting the maximum value of the bandwidth credit accumulator register.
摘要翻译：披露了带宽保留的基于单元的包络波前判优器（WWFA）的系统和方法。用于使用WWFA预留给定优先级的带宽的方法用于在输入和输出端口之间的虚拟链路之间的虚拟链路中的带宽进行仲裁，支持一个或多个优先级的每个虚拟链路和对应于WWFA的仲裁单元（AU）的方法通常包括执行至少一个 WWFA的波前的仲裁通过，其中具有给定优先级的预留带宽请求的AU和给定优先级的预留带宽信用度与与波前相关的带宽竞争，并且其中AU不具有给定的保留带宽请求优先级和给定优先级的保留带宽信用不对带宽进行竞争，并且执行至少一个后续仲裁通过，其中具有给定优先级的预留带宽请求的AU竞争带宽。

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