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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: iSCSI: Question about ErrorRecoveryLevelBill - Yes ERL 1 implies both and at the end of the chapter the classes associated with the level are clearly stated. Julo
On Tue, 16 Jul 2002, Mallikarjun C. wrote: > > Every where within-command and within-connection recovery is discussed, > > each of them is described as optional. The quote above doesn't say that > > level 1 MUST consist of both within-connection and within-command > > recovery. > > [ The error in grammar is already fixed in the working version. ] Cool, I still haven't grabbed -15 yet. > The reason MUST language was not used is because the text in question is > defining the terminology, but is not phrased in such a way as to place requirements > on implementations. It is similar to several terminology descriptions in chapter 2. > > My intent when I wrote that text was - because the negotiation of the > ErrorRecoveryLevel follows the regular negotiation rules (i.e. don't originate > a proposal that you cannot support, and the result function is "minimum"), no > additional MUST/SHOULD/MAY language is necessary. But if you recommend > explicit text, I suggest we add the following at the end of the last para of > text in 5.13 - That though doesn't answer my question. :-) The main question is does ErrorRecoveryLevel 1 imply both within-command and within-connection support, or does it imply at least one and maybe both? If anything, the fact that ErrorRecoveryLevel 1 implies all of 0, and 2 implies all of 1 and 0, is clear in the draft now. > When a defined value of ErrorRecoveryLevel is proposed by an > originator in a text negotiation, the originator MUST support the > functionality defined for the ErrorRecoveryLevel or functionality ^^ Is this supposed to be "and"? > corresponding to any defined value numerically less than the proposed. > When a defined value of ErrorRecoveryLevel is returned by a responder > in a text negotiation, the responder MUST support the functionality > corresponding to the ErrorRecoveryLevel it is accepting. If "and" is appropriate, then shouldn't we add, "and all numerically lower levels" to the end of the paragraph? I'm happy with ErrorRecoveryLevel 1 == both within-connection and within-command recovery. I'm also happy with ErrorRecoveryLevel 1 == within-command, within-connection, or both (and ErrorRecoveryLevel 2 being both). I just think with the amount of, "optional," used in conjunction with error recovery that it's not clear which case we want.
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