| 摘要 |
A communication system includes, in addition to nodes, a controller for setting, in each node, a processing rule that stipulates a matching rule and processing for a packet matching to the matching rule. Each node processes a received packet in accordance with the processing rule. At least one of the nodes is capable of performing mirroring of a received packet. For a flow satisfying a pre-set condition, the controller sets a processing rule to perform packet mirroring in an arbitrary node, while setting, in a node on a packet capture route reaching a pre-set mirror server, a processing rule that stipulates the processing to forward a mirrored packet.
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