Re: iSCSI: Aggregation tags in SendTargets

[Mark Bakke <mbakke@cisco.com>]

Marjorie-

The request was made at the interim meeting to use a tag
to specify that multiple connections per session was supported.

That way, an initiator discovering a target via SendTargets
would know whether or not to bother attempting multiple
connections on the session.  So you are right; it has been
overloaded to do that.

Of course, if there were some sort of flag or text key in
the iSCSI login response to indicate the support of multiple-
connection sessions, we wouldn't need to do this.  I don't
think it's in there, though.

--
Mark

"KRUEGER,MARJORIE (HP-Roseville,ex1)" wrote:
> 
> > John Hufferd wrote:
> > >
> > > Mark,
> > > You might want to modify your first rule, it does not take
> > into count the
> > > condition where a single address can have more then one
> > connection to the
> > > same session, but only to the same IP address.
> >
> > >   To make this work, there are a few rules to follow:
> > >
> > >   A target that does not support spanning sessions across multiple
> > > addresses
> > >   MUST NOT include the tags.
> >
> > A target address that does not support multiple connections per
> > session MUST NOT include an aggregation tag.
> >
> > A target address that supports multiple connections per session
> > MUST include an aggregation tag.
> 
> If a target only has one IP address, and supports multiple connections per
> session thru that IP address, why would it have to include an aggregation
> tag?  I thought an aggregation tag is ONLY to indicate that a single
> session's connections may span IP addresses.  Are you trying to overload it
> to indicate multi-connection session support?
> 
> Marj

-- 
Mark A. Bakke
Cisco Systems
mbakke@cisco.com
763.398.1054