Re: iSER Specification login/text operational keys

Mike Ko <[email protected]>
Newsgroups gmane.ietf.rddp
Message-ID <OFF878BCD8.A19221D6-ON85256ECA.0077B346-88256ECA.007904CA@us.ibm.com>
The intent is to not use HeaderDigest, DataDigest, OFMarker, and IFMarker 
when RDMAExtensions is negotiated to yes.  Should the iSCSI spec be 
changed for any reason such that the defaults for these 4 keys are not off 
by default, then these 4 keys must be negotiated to None/No for an iSER 
connection.  Otherwise no explicit negotiation for these 4 keys are 
intended if the default is None/No.

For InitiatorRecvDataSegmentLength and TargetRecvDataSegmentLength, if 
both the initiator and the target are willing to accept the default value, 
then no explicit negotiation is required for an iSER connection.

Hope this helps.

Mike
Sent by:        [email protected]
To:     [email protected]
cc:      
Subject:        [rddp] iSER Specification login/text operational keys




Hello all,

Sections 8.1 and 8.6 of the iSER specification state that if
RDMAExtensions is negotiated to Yes on the leading connection of a
session, then HeaderDigest,DataDigests, OFMarker and IFMarker, if they are
negotiated, must be negotiated to None/No.

In Section 5.3, points 2 and 8 say that the keys HeaderDigest,DataDigests,
OFMarker and IFMarker MUST be negotiated to None/No.

Does this mean that these keys must be offered for negotiation when
RDMAExtensions=Yes, even if they simply select the value None? (Since
these keys are off by default, negotiation is not required to arrive at
the result None/No. )

Does similar reasoning apply to InitiatorRecvDataSegmentLength and
TargetRecvDataSegmentLength?

Any help is appreciated.
Thanks,

Minti Patel
InterOperability Lab
University of New Hampshire


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