发明名称 |
Apparatus and methods for enabling recovery from failures in optical networks |
摘要 |
Apparatus for enabling recovery from failures in up to M working paths of a set of N working paths that are allocated N frequency slots of L different slot widths, where M, N and L are positive integers, N≧L>1, and N>M>1. The apparatus includes a processor and a control plane interface. The processor is operative to allocate protection frequency slots to M protection paths in different manners depending on whether M is greater than L, equal to L or less than L. The control plane interface is operatively associated with the processor and is operative to effect provisioning of the M protection paths for supporting recovery from the failures. Related network, apparatus and methods are also disclosed. |
申请公布号 |
US9054955(B2) |
申请公布日期 |
2015.06.09 |
申请号 |
US201213731039 |
申请日期 |
2012.12.30 |
申请人 |
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发明人 |
Handelman Doron |
分类号 |
G02F1/00;H04L12/24;H04J14/02 |
主分类号 |
G02F1/00 |
代理机构 |
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代理人 |
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主权项 |
1. Apparatus for enabling recovery from failures in up to M working paths of a set of N working paths that are allocated N frequency slots of L different slot widths, where M, N and L are positive integers, N≧L>1, and N>M>1, the apparatus comprising:
a processor operative to allocate protection frequency slots to M protection paths as follows:
if M<L, to allocate M protection frequency slots of slot widths corresponding to the M greatest different slot widths of the L different slot widths to the M protection paths;if M=L, to allocate M protection frequency slots of slot widths corresponding to the L different slot widths to the M protection paths; andif M>L, to allocate L protection frequency slots of slot widths corresponding to the L different slot widths to L of the M protection paths and to allocate M−L additional protection frequency slots of slot widths corresponding to at least one of the L different slot widths to the remaining M−L protection paths; anda control plane interface operatively associated with the processor and operative to effect provisioning of the M protection paths for supporting recovery from the failures. |
地址 |
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