[openib-general] [RFC] IB address translation using ARP

[Caitlin Bestler]

________________________________

	From: openib-general-bounces at openib.org
[mailto:openib-general-bounces at openib.org] On Behalf Of Michael Krause
	Sent: Wednesday, October 12, 2005 8:24 AM
	To: Hal Rosenstock; Sean Hefty
	Cc: Openib
	Subject: RE: [openib-general] [RFC] IB address translation using ARP
	
	
	At 07:45 AM 10/10/2005, Hal Rosenstock wrote:
	

		On Sun, 2005-10-09 at 10:19, Sean Hefty wrote: 
		> >I think iWARP can be on top of TCP or SCTP. But why
wouldn't it care ?
		> 
		> I'm referring to the case that iWarp is running over TCP.
I know that it can
		> run over SCTP, but I'm not familiar with the details of
that protocol.  With
		> TCP, this is an end-to-end connection, so layering iWarp
over it, only the
		> endpoints need to deal with it.  I believe the same is true
for SCTP.
		
		Yes, SCTP is similar in those regards.


	SCTP creates a connection and then multiplexes a set of sessions over
it.  You can conceptually think of it as akin to IB RD but where all QP are
bound to the same EEC.
	
	
	

SCTP preserves all QP to QP semantics, including buffers posted to specific
buffers and credits. So SCTP will allows multiple in-flight messages for each
RDMA stream in the association.
 
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