Re: iSCSI minimum PDU length

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

Santosh,

The restriction applies to NOP (every PDU) too.
The Ping response will be the Ping data or a ping data cut to the length 
of the reverse direction PDU.
The curent 4k was also for responses.

Julo





Santosh Rao <santoshr@cup.hp.com>
Sent by: santoshr@cup.hp.com
24-10-01 20:04
Please respond to Santosh Rao

 
        To:     Julian Satran/Haifa/IBM@IBMIL
        cc:     ips@ece.cmu.edu
        Subject:        Re: iSCSI minimum PDU length

 

Julian,

Does the below imply that the length retriction of 4K on text & nop
operations is also removed and we now need to handle multi-sequence nop
operations ?

I suggest that maximum nop operation length be restricted to the minimum
PDU length that the draft will require. This will avoid adding multi-pdu
sequence complexity for the nop-out/nop-in pdu's.

The current login & text pdu's do allow for multi-sequence operations
based on the T/F bit. This should be sufficient if the login/text
payload exceeds 1K , as long as "key=value" operations are not going to
span pdu's. Is that correct ?

- Santosh


Julian Satran wrote:
> 
> With no votes against we have settled (again) on single PDU length (per
> connection, per direction) for all types of PDUs.
> But I think we erred on the low side by suggesting 64 as a minimum. It 
is
> low (it was mentioned) and bad for text request/response.
> 
> How about settling for 1024?
> 
> Julo

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##################################
Santosh Rao
Software Design Engineer,
HP-UX iSCSI Driver Team,
Hewlett Packard, Cupertino.
email : santoshr@cup.hp.com
Phone : 408-447-3751
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