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Alarm buffer, Alarm buffer -2, Event reporting configuration example -2 – Cabletron Systems 1800 User Manual

Page 350

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22-2

SmartSwitch 1800 4. 0 User G uide, Rev 01

The following shows an example of a two-node event routing configuration.

Figure 22-1 Event Reporting Configuration Example

Alarm Buffer

Each node has a buffer where events are stored while waiting for transmission. When
a buffer reaches the percentage of full capacity specified by the parameter

Max Con-

gestion

, further events originating at that node are lost until the percentage of capacity

specified by the parameter

Min Congestion

is reached.

When the buffer reaches

Max Congestion

, the node adds the event message

Beginning

of congestion

to the buffer. No more events are put into the buffer until it has reached

Min Congestion

, at which time another message,

End of congestion, “n” events lost

, is

put into the buffer, and all events are again put into the buffer.

When the collecting node's event buffer reaches

Max Congestion

, events are held in the

originating nodes' buffers until the buffers reach

Max Congestion

or the collecting

node begins accepting events again.

Collecting Node ID =

222

Primary Alarm Output ID =

12345

Secondary Alarm Output ID =

C1

Network Mgmt.
Station with
Address

12345

Printer

Node 1

Collecting Node

Optional
Monitor

COM1

Alarms from
Node 2

Node 2

Optional

Async

Terminal