| 摘要 |
In a packet switched network, network data can be recorded for measurement by transmitting a measurement packet across the network to store path records as it travels from an originating measurement device to a destination device. Some of the network devices located along the path traversed by the measurement packet are capable of recognizing that the measurement packet no longer has any further storage capacity for path records. The network device then copies or clones the measurement packet and erases the path record data from the original measurement packet. The original measurement packet then continues on its path to the destination address collecting further path records on the way, while the cloned packet is returned to the measurement host for processing of the path records when all cloned packets and the original measurement packet return to the measurement host.
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