Re: Minimum PDU Size & CRC.

["Julian Satran" <Julian_Satran@il.ibm.com>]

iSCSI requires padding. I would guess
that a TOE that does not do the CRC is useful only if you can rely on the
network (no middle boxes) and have a good packet level check. It would
be pointless to have a TOE and calculate the iSCSI CRC by software in the
"application".

Julo

"Preetam Verma" <pverma@marantinetworks.com>
Sent by: owner-ips@ece.cmu.edu

23/01/03 22:01

Please respond to
<pverma@marantinetworks.com>

To	<ips@ece.cmu.edu>
cc
Subject	Minimum PDU Size & CRC.

Eddy/Julo

I'm trying to reassemble ISCSI PDUs from data from a TCP offload engine.
During congestion, an initiator may send 1 byte in the TCP payload. I wish
to know whether an initiator can send unpadded 1 byte in a TCP payload.
When
it comes to data intensive applications, people generally check/generate
CRC. I am not sure whether it's the application that needs to check whether
the data received had proper CRC. I am talking from a hardware perspective.

I'd greatly appreciate your help.

Regards

Preetam