Abbreviations
Operand |
Abbreviation |
MODIFY |
F |
Purpose
Using the MODIFY TGP
(transmission group profile) command, you can change the TG profile
associated with a type 2.1 connection. A specific
connection is identified by the combination of a control point (CP)
name and TG number, or by the adjacent link station (PU) name.
If
this command is issued while the connection is active and the new
TG profile can be located, the topology database is updated and the
new characteristics are used immediately. If the connection is not
active, the new TG profile name is saved and is reported the next
time the connection is activated.
This command is valid only
when it is issued at an APPN node (network node, end node, interchange
node, or migration data host).
Operands
- procname
- The procedure name for the command. If procname in
the START command was specified as startname.ident,
where startname is the VTAM® start procedure and ident is
the optional identifier, either startname.ident or ident
can be specified for procname.
If procname in the START command was startname,
startname must be specified for procname.
- ID=name
- Specifies an adjacent control point (CP) name or an adjacent link
station (PU) name. If a CP name is specified, then the TGN operand
must also be specified.
A CP name can be network-qualified.
If the network ID is not specified, VTAM uses
the network ID of the host from which the command is issued. You can
specify * (or *NETWORK) as the network ID portion of a network-qualified
adjacent CP name to modify the TG profile for adjacent CPs that do
not currently have a network identifier assigned to them. For
example, the following command is valid if A01N currently does not
have a network ID associated with it:
F procname,TGP,TGPNAME=BATCH,ID=*.a01n,TGN=3
- TGN=tg_number
- Specifies the transmission group number associated with the CP.
For virtual-route-based TG connections, TGN must be specified as 255.
- TGPNAME=tg_profile_name
- Specifies the name of a transmission group profile definition.
Result: If you have
specified the PSRETRY start option, a TG profile that changes characteristics
for a TG triggers path switches for all RTP pipes, regardless of the
PSWEIGHT start option value. This means that the RTP pipes might be
switched to the same path even if PSWEIGHT is set to LESSTHAN. See
z/OS Communications Server: SNA Resource Definition
Reference for additional information about the PSRETRY
and PSWEIGHT start options.