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Counters
The EPSR counters record the number of EPSR messages that the CPU received and
transmitted. To display the counters, use the command:
show epsr=domain1 count
The following diagram shows the counters for a master node in a ring that has never had a
Master node in
a Complete
link or node fail.
ring
EPSR Counters
------------------------------------------------------------------------
Name: domain1
------------------------------------------------------------------------
Note that the node has generated 1093 EPSR packets (and sent them out its primary port)
and has received the same number of EPSR packets (on its secondary port).
However, it is very common to see a few Link Down, Ring Down, and Ring Up entries in the
output of a ring that has never been in a Failed state. These messages are produced when you
first enable EPSR, if some ring nodes establish before others.
In contrast, the following diagram shows the counters for a transit node in a ring that has
Transit Node
in a ring that
been in a Failed state twice.
had failures
EPSR Counters
------------------------------------------------------------------------
Name: domain1
------------------------------------------------------------------------
Here, the transit node has received 1421 Health messages, which it will have forwarded on if
its ports were up. These messages do not show in the transmit counters because they are
transmitted by the switching hardware, not the CPU.
The node has also generated two Link-Down messages, indicating that on two separate
occasions one of its links has gone down.
Page 35 | AlliedWare™ OS How To Note: EPSR
Receive:
Total EPSR Packets
Health
Ring Up
Ring Down
Link Down
Invalid EPSR Packets
Receive:
Total EPSR Packets
Health
Ring Up
Ring Down
Link Down
Invalid EPSR Packets
Transmit:
1093
Total EPSR Packets
1092
Health
1
Ring Up
0
Ring Down
0
Link Down
0
Transmit:
1425
Total EPSR Packets
1423
Health
2
Ring Up
0
Ring Down
0
Link Down
0
Counters
1093
1092
1
0
0
2
0
0
0
2
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