EMS Manual

Generating Standard Events
EMS Manual—426909-005
10-15
Task 6. Design Your Event Messages
1. Add to your old event any common-standard tokens defined in Section 9, Standard
Events, that are not already in your old event.
2. Classify your old event by assigning an event type to the event:

Use the event types defined for the ZEMS-TKN-CONTENT-STANDARD or
ZEMS-TKN-CONTENT-USER tokens whenever possible.

If you define your own event types, you must define corresponding enumerated
values for the ZEMS-TKN-CONTENT-USER token.

Use as few event types as possible to make event filtering easier and more
efficient for operators.
3. Add to your template those common-standard tokens that you have added to your
event.
If your template style is different from that of a standard event, consider changing
your template to look like a standard event. This makes it easier for operators to
scan the event message for information.
Task 6. Design Your Event Messages
Determine your event messages from the event types and event subjects you have
identified. This task is for the design of a single event. Repeat it for each event
message you need to design.
Normally, you define an event message—with a unique event number—for each
subject and event type combination. The two situations in which you might assign an
event number differently:

Your event message contains many possible recovery actions. In this case, define
multiple event messages per event type and subject combination so each
message specifies a well-defined recovery action.

If your event is enhanced from an existing event, you must keep the same event
number and its literal.
1. Designate the event number.
Every event message must have an event number, unique within your subsystem
SSID. Define all your event numbers using literals of ss-EVT-eventname, such as
ZX25-EVT-LINE-DOWN, where eventname indicates the subject (X.25 line) and
condition (down) reported in the event.
2. Determine if your event is reporting a critical or noncritical condition.
For guidelines for the ZEMS-TKN-EMPHASIS token, see Common-Standard
Tokens That Subsystems Provide on page 9-20.
3. Determine whether to display your event on the operator console.