iSER: draft-ietf-ips-iser-05.txt

["Sanjay Goyal" <sanjayg@ivivity.com>]

Hi

below is the description as per draft-ietf-ips-iser-05.txt section 6.3

 

--------------

An iSER-enabled node is not required to initiate the RDMAExtensions

   key exchange if it prefers to operate in the Traditional iSCSI mode. 

   However, if the RDMAExtensions key is to be negotiated, an initiator

   MUST offer the key in the first Login Request PDU in the

   LoginOperationalNegotiation stage of the leading connection, and a

   target MUST offer the key in the first Login Response PDU with which

   it is allowed to do so (i.e., the first Login Response PDU issued

   after the first Login Request PDU with the C bit set to 0) in the

   LoginOperationalNegotiation stage of the leading connection.  In

   response to the offered key=value pair of RDMAExtensions=yes, an

   initiator MUST respond in the next Login Request PDU with which it

   is allowed to do so, and a target MUST respond in the next Login

   Response PDU with which it is allowed to do so.

----------

 

What is confusing to me is

"if the RDMAExtensions key is to be negotiated, an initiator

   MUST offer the key in the first Login Request PDU in the

   LoginOperationalNegotiation stage of the leading connection"

               which is later followed by

"In response to the offered key=value pair of RDMAExtensions=yes, an

   initiator MUST respond in the next Login Request PDU with which it

   is allowed to do so"

 

If the Initiator did not exchange the key in first Login Request, means that it doesnot want to negotiate, why would it get the key in the first Login Response as Target should not send it to begin with.

 

Please clarify,

 

Regards,

 

Sanjay Goyal

678-990-1550 x204

iVivity Inc.

Norcross, GA 30093

 

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