Subject: HPR Route Preference

From: "Jim Fletcher ((919) 254-5929)" <[email-masked]>
Date: Tue, 22 Nov 94 12:48:47 EST

Ref:  Hefel's note of Mon, 14 Nov 94 18:15:26 EST (attached)

Tim, I believe we have missed the boat if we assume that the only
applications that will want non-disruptive routing are new applications.
The need ranges from 3270 users to appl to appl high speed communications
applications. Its been a requirement for my 13 years at IBM for
existing applications. The key problem is recovery time and network
overhead for terminating and reestablishing sessions. Its a strain
on any network (and even the lowly 3270 user who has to relogon or
loses data because of the outage).

I'm not sure where this all settled (because of my mail overload), but
one more consideration is migration to HPR. I could easily have
migrated some of my "host hugger" connections to HPR but not all of
them so I could get wacky routes during migration if I prefer HPR
connections. This addresses Jim Cobban's concern about nobody having
multiple connections to their end stations ... we must remember that
there are MANY SNA customers who are not point to point networks.

If this has all been settled maybe I will find it as I get through
the rest of my mail.