Dear Everyone:
I have a question when I was reading the draft about RELOAD named “*
draft-ietf-p2psip-base-08*", and welcome everybody to join me to discuss the
question.
In 5.1.2, it mentions that
"
Any intermediate peer which forwards a RELOAD message MUST arrange that if
it receives a response to that message the response can be routed back
through the set of nodes through which the request passed. This may be
arranged in one of two ways:
o The peer MAY add an entry to the via list in the forwarding header
that will enable it to determine the correct node.
o The peer MAY keep per-transaction state which will allow it to
determine the correct node.
......
"
The first question is:
What scenario the second method is used for? What the "per-transaction"
exactly means?
The second question is:
As for the example explaining the second method, it mentions an equipment
named "state database" which can store the transaction ID and Node ID used
for the forwarding of response message. But the draft has not defined such
equipment before, so I can't understand it very much, for example, is it a
centralized equipment in network? Or a functional entity which can be
distributed deployed and ensuring every node can share the same information
timely?
Thanks a lot.
--
Regards,
北京邮电大学 / Beijing University of Posts and Telecommunications (BUPT)
台璇 / Tai Xuan
e-mail: [email protected]
mobile:+86135-8176-2082
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