A couple of simple questions.


Guru Parulkar (wucs1!wuccrc!guru@uunet.uu.net)
Sat, 21 Nov 87 02:06:48 CST


In the last few weeks, there has been a number of messages about PSN
version 7 release and a new end-to-end ARPAnet protocol. However, I
haven't seen any reference or RFC announcement which describes this
protocol. Maybe, I missed it. Could somebody tell me if there is any
reference on that. Or is this protocol BBN's proprietrary.

One question that I wanted to ask for a while is about the "connection
oriented" nature of ARPAnet's link level (or PSN - PSN protocol). I
believe this protocol is essentially a connection oriented which
means we have a situation where a connection less internet protocol
IP sits on the top of a connection oriented protocol. Is it possible
that in this situation the overhead of connection management does not
have good "payoffs" at IP level or layers above that ? I remember Dr.
Dave Mills saying something on similar lines in one of his classes at
Delaware. (Maybe, I misunderstood what he was trying to convey.)
I need to understand this issue better, and I would appreciate if
somebody could help me with this.

Thanks!

-guru parulkar wuccrc!guru@uunet.uu.net or
Dept of CS parulkar@udel.edu
Washington Univ St. Louis



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