专利名称:Efficient architectures for protection against
network failures
发明人:Ramesh Nagarajan申请号:US09587892申请日:20000606公开号:US07342873B1公开日:20080311
专利附图:
摘要:Traffic demands are routed between network elements so as to provideimproved protection against network failures. A given traffic demand is routed from afirst network element to a second network element, where the second network element
is preferably either one of a set of dual-homed elements, or coupled to a dual-homedelement, and may also be an element of a ring-type transport or a mesh-type transport.The second network element processes the traffic demand such that a copy of a signalassociated with the demand is (i) retained at the second network element, while thesignal is routed to at least one additional network element, or (ii) routed to at least oneadditional network element, while the signal is routed to at least one network elementother than the additional network element. For example, in a multidrop connectionimplemented in accordance with the invention, a copy of the signal is “dropped” at thesecond network element and one or more additional network elements. In a multicastconnection implemented in accordance with the invention, one or more copies of thesignal are multicast from the second network element to multiple additional networkelements.
申请人:Ramesh Nagarajan
地址:Somerset NJ US
国籍:US
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