NET/MASTER Management Services (MS) System Management Guide

Regulating Intersystem Message Flows
Supporting Remote Operations
105744 Tandem Computers Incorporated 9–31
Specifying the Class of
Messages Exchanged
You can specify the class of messages routed over an ISR conversation by using the
flow-class operand of the ISR ENABLE and ISR DISABLE commands. You can start or
stop the exchange of all message classes or select message classes. These message
classes exist:
Communications Network Management (CNM)
EMS
NEWS (a synonym for CNM)
PPO (a synonym for EMS)
Use the ALL operand to affect all message classes. For example, to start an ISR
conversation that allows the exchange of EMS messages with a link named
“COMPTON,” issue this command:
ISR ENABLE=EMS LINK=COMPTON
If you wanted the COMPTON link to receive only CNM messages, issue this
command:
ISR ENABLE=CNM LINK=COMPTON
If you omit the flow-class operand, NonStop NET/MASTER MS uses the default value
of ALL. For example, to disable the flow of all classes of event messages between the
local node and a link named “TANGIERS,” issue this command:
ISR DISABLE LINK=TANGIERS
Allowing Exchange of
Solicited and Unsolicited
Messages
By default, all ISR conversations allow flow of solicited messages from the other end of
a link. Using the SOLICIT option of the ISR ENABLE command, you can allow or
deny receipt of solicited messages. The option accepts two arguments: “Y,” to allow
solicited message flow, and “N,” to deny the flow of solicited messages. Both ends of
the link must enable the flow of message traffic.
For example, use this command to disallow receipt of solicited messages from a link
named “COMPTON”:
ISR ENABLE LINK=COMPTON SOLICIT=NO
By default, all ISR conversations deny exchange of unsolicited messages with the other
end of the link. Using the UNSOLICIT option of the ISR ENABLE command, you can
allow or deny exchange of unsolicited messages. The option accepts the same two
arguments, “Y” and “N,” as the SOLICIT option.