Cabletron Systems 1800 Alarm Bu ffer

22-2 Smart Switch 1800 4. 0 User Guide , Rev 0 1
The following shows an example of a two-node event routing configuration.
Figure 22-1 Event Reporting Configuration Example
Alarm Bu ffer
Each node has a buff er where events are st ored while waiting for tr ansmission. 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 percenta ge of capacity
specified by the parameter Min Congestion is reached.
When the buffer reaches Max Congestion, the node adds the event messa ge Beginnin g
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 n ode's event bu ffer re aches M ax C ongestion, events are hel d i n 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 = 12 345
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