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Technical Bulletins |
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I Updates Expedite/Direct Version 2, Release 1
Date posted: 31 July 2001
Customers Affected: All system network architecture
(SNA) leased line customers utilizing Expedite(TM)/Direct
Version 2, Release 1 (2.1) via access to Information Exchange.
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This Technical Bulletin contains information regarding
the update of Expedite/Direct 2.1 that will enable SNA leased
line customers to send and receive records up to 4090 bytes
in length. The previous record size was up to 250 bytes
in length.
This update is planned for availability beginning on December
16, 2001. A pilot for the updated Expedite/Direct 2.1 will
be available beginning on August 5, 2001, through December
15, 2001.
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Expedite/Direct 2.1 Update
Expedite/Direct 2.1 has been updated to allow SNA connected
customers to send and receive records up to 4090 bytes in
length. In order to send and receive the larger records,
SNA customers must specify SNALRG as their USERDATA value
instead of one of the current values of SNAEDI or BSCEDI.
Customers must also define a logmode with a request unit
(RU) size of 4096 bytes. Customers using the USERDATA values
of SNAEDI and BSCEDI are still subject to the 256 byte RU
size, and current send and receive record length restrictions.
There are no new commands or command parameters, but the
LENGTH parameter of the RECEIVE command will now allow a
value of up to 4090 when the USERDATA value is SNALRG. When
a USERDATA value of BSCEDI or SNAEDI is specified, however,
the maximum LENGTH value remains at 250. Received records
are not delimited by inter-record separators of any kind.
All command defaults remain the same in order to maintain
the methods of processing inherent in the current Expedite/Direct
2.1.
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All
leased line customers will have access to the updated Expedite/Direct
2.1. Any leased line customers who wish to use the new function
and have a static TYPETERM definition in the Information Exchange
Common Front End will need to have their definitions updated,
so the SENDSIZE and RECEIVESIZE values are set to 004096.
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The
Options Definition File for the remote definition of Expedite/Direct
2.1 should be updated as follows:
USERDATA=SNALRG
MEDIA=BX
LOGMODE=RJE3770L (must specify a logmode with an RU size
of 4096)
In addition, the VSAM Batch Queue should be defined to
allow for the largest record a customer expects to receive.
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Customers
may test their connection to the updated Expedite/Direct 2.1
by connecting to a pilot of Expedite/Direct 2.1 that will
be available beginning on August 5, 2001, through December
15, 2001. The pilot can handle bisynchronous protocol through
dial and leased line connections and Synchronous Data Link
Control (SDLC).
Customers wishing to participate in the pilot with dial
and leased line connections must order the connection to
the product EDIRECTB for the bisynchronous protocol, and
EDIRECTA for the SDLC protocol. They must also change their
batch logon record.
Customers wishing to test with a leased line connection
must also order a connection to the logical unit (LU) IBM0AT49
and define this LU for their leased line connection.
The pilot for Expedite/Direct 2.1 is scheduled for discontinuation
on December 15, 2001 . This front end may be used
for other future pilots. Therefore, customers should not
depend on this region for continued production use. Customers
should utilize their normal defined Expedite/Direct 2.1
for an ongoing connection to Information Exchange.
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If
you need further assistance, please Contact
Us.
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