iSCSI: Stage Transitions

[Mike Donohoe <Mike.Donohoe@quantum.com>]

If the initiator send a login with T=1 csg,nsg= 0,3 can the target respond
with T=1 csg,nsg=0,1????

The text appropriate to this scenario is:

Section 4.3 Page 77

Stage transition is performed through a command exchange (request/
response) that carries the T bit and the same current stage code.
During this exchange, the next stage is selected by the target and
MUST NOT exceed the value stated by the initiator. The initiator can
request a transition whenever it is ready, but a target can respond
with a transition only after one is offered by the initiator.
...
When a transition is requested by the initiator and acknowledged by
the target both initiator and target switch to the selected stage.


The target isn't specifically "acknowledging" the original transition and
they had different "selected stages."

Thanks.