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Forwarding mechanism for multi-destination packets to minimize per packet scheduling overhead in a network forwarding engine
Forwarding mechanism for multi-destination packets to minimize per packet scheduling overhead in a network forwarding engine
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机译:用于多目标数据包的转发机制,以最小化网络转发引擎中的每个数据包调度开销
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摘要
A technique for designating output interfaces through which a data unit is transmitted in point-to-multipoint transmission is disclosed. An indicating word having a flag field, a group indicator field and a bitmask field is employed. The number of bits in the bitmask is less than the total number of output interfaces. The bitmask field has a plurality of bits for indicating output interfaces and the group indicator field designates an offset value such that the bitmask field and group indicator field together indicate particular individual output interfaces. The flag field serves as notification that additional such words are to be received in association with a given point-to-multipoint data unit transmission.
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