RE: FCIP Last Call, comment 109 - Special Frame

[Black_David@emc.com]

Yes, that's fine.  --David

> -----Original Message-----
> From: Ralph Weber [mailto:ralphoweber@compuserve.com]
> Sent: Sunday, April 28, 2002 11:24 AM
> To: IPS Reflector
> Cc: David Black
> Subject: Re: FCIP Last Call, comment 109 - Special Frame
> 
> 
> David,
> 
> Forgive me for testing the boundaries of our "violent agreement".
> 
> Would the following sentence (in the new FSF Usage section) be
> acceptable:
> 
> "Note: Owing to the limited manner in which the FSF is used and
> the requirement that the FSF be echoed without changes before
> a TCP connection is allowed to carry user data, no error checking
> beyond that provided by TCP is deemed necessary."
> 
> Thanks.
> 
> .Ralph
> 
> Black_David@emc.com wrote:
> 
> > Ralph,
> >
> > > Regarding:
> > >
> > > > That [always closing the TCP connection if the SF data changes]
> > > > would be fine if the received data were always discarded when a
> > > > change occurred that caused connection closure.  My 
> understanding
> > > > of the "poor man's SLP" scenario is that the received 
> data is intended
> > > > to be used even though the connection was closed.  
> TCP-grade data
> > > > integrity may be ok for that use - if that's the case, a single
> > > > sentence saying that as part of the new description of 
> "poor man's
> > > > SLP" should be sufficient to close this issue.
> > >
> > > I have no problems with adding the requested sentence.
> > >
> > > However...
> > >
> > > I believe that your understanding of the "poor man's SLP" scenario
> > > continues to reflect a misunderstanding of the intrinsic checks
> > > that it contains.
> >
> > We're in violent agreement.  When the data in an SF is changed, the
> > intent is that the resulting data is to be used to make a new
> > TCP connection.  If the data is corrupt/incorrect, things will go
> > wrong on that connection; preventing this is desirable and the
> > TCP checksum is deemed to be a sufficient preventative measure.
> >
> > Thanks,
> > --David
> > ---------------------------------------------------
> > David L. Black, Senior Technologist
> > EMC Corporation, 42 South St., Hopkinton, MA  01748
> > +1 (508) 249-6449 *NEW*      FAX: +1 (508) 497-8500
> > black_david@emc.com         Cell: +1 (978) 394-7754
> > ---------------------------------------------------
> 
> 
>