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List:       isp-bgp
Subject:    Re: w.r.t RFC 1771 -  If the TCP Connection is not establised, is  ACTIVE  state mandatory
From:       "Simeon Pilgrim" <simeon.pilgrim () alliedtelesyn ! co ! nz>
Date:       2001-10-11 21:47:10
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> Can we not do this being in CONNECT state itself? (i.e. clubbing CONNECT and
> ACTIVE)

Yes, in the CONNECT state an inbound connection would make 
you go to the OPENSENT state. But that is not what I am trying to 
show.

If what your saying is, why can't we make the CONNECT state wait 
if the connection fails, before it starts again, then you have just 
defined to behaviours for one state. So it really has to be two 
states.

The only point of the ACTIVE state is to stop the 'router' trying to 
make another outbound TCP connect straight after the first failed. 

It really depends how the TCP stack at the other end behaves to 
SYNs on ports it is not listen on, does it do nothing, or does it 
send a RST or FIN back. If it does the latter, and you have no 
ACTIVE state then you will thrash the other end with SYNs 
because every time you get a RST or FIN you go back to the 
CONNECT state and try another outbound connection.

regards,
Simeon.
-------------------------------------------------------------
Simeon Pilgrim                      27 Nazareth Avenue
Software Engineer                   PO Box 8011
Allied Telesyn Research             Christchurch 8034
(An Allied Telesyn Group company)   New Zealand 
phone +64 3 377 8900                fax   +64 3 377 8870       
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