Re: TCP limitations (was Re: ISCSI: Urgent Flag requirement violates TCP.)

[Matt Wakeley <matt_wakeley@agilent.com>]

csapuntz@cisco.com wrote:

> Given that shim protocol requires no changes to the TCP in the sender,
> it is currently my favorite way of doing RDMA.
> 
> -Costa

Please see Jeff's message on 10/26.  If you don't have framing, when you lose
a segment, you need to buffer generic TCP segments on the NIC before you can
"RDMA" them somewhere, because you don't know where the "RDMA" information is
in the "byte stream".

-Matt