| CPC H04L 43/10 (2013.01) [H04L 69/22 (2013.01)] | 4 Claims |

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1. An information processing method comprising a first communication node that executes
adding, in a first message generated by a first application to a second communication node, first trace information that traces the first message among a plurality of communication nodes,
adding location information indicating a location of the first trace information to a predetermined position ahead of the first message in a first packet including the first message,
transmitting the first packet to which the first trace information and the location information have been added, and
transferring, when second location information is disposed in the predetermined position of a second packet transmitted from the second communication node, the second packet to the first application after deleting the second location information.
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