R2TDataSN

["Somesh Gupta" <someshg@yahoo.com>]

> R2TDataSN
> ----------
> Sec 6.7.1 has some new content on how to handle lost R2Ts using
> SACKs.  But I noticed that the SACK request (Sec 2.16) has not
> changed to indicate whether the DataSN is a R2T DataSN or just
> a Read PDU DataSN (D bit)
> So do we demux on the read/write operation type?
> And how does this affect PDU loss in bidirectional commands ?
> +++ SACK is ascking for data (DataSN) the target knows
> 

Julian,

Regarding the R2TDataSN, I have a comments and a
question.

I think that when a PDU header fails a CRC/checksum check etc,
it is a problem to depend on any information in the header (including
length fields), thereby making any further processing on
the connection unreliable.

What scenarios do you envision where the R2TDataSN is useful.
IN Orlando I think there was clear consensus that application
do not try to transfer very large amounts of data using a
single command.

Thanks,
Somesh

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