 | Dear All:
In gnutella protocol 0.4, it is not mentioned whether the network
uses single direction connections or reciprocal connections.
I deduce it should be reciprocal connections because (1) the Pong
and QueryHit are sent back to the requestor through the path of Ping
and Query; (2) the Ping and Query messages do not contain IP and Port
information of the requestor.
Due to reason (2), the responder cannot build a direct TCP connect
to the requestor to send its Pong or QueryHit. Thus, Pong and QueryHit
have to go back through the coming path.
In summary, the connections in a typical gnuttela network should
be reciprocal. Am I correct?
Why does Gnuttela Protocol not include into Query and
Ping so that the connections can be single-directional (because the
Pong and QueryHit can be sent by building direct TCP connections.)?
Thanks a lot.
Best
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