Extreme Networks EPICenter 6.0, Reference Manual

Page: 366 / 580

Administering EPICenter
EPICenter Reference Guide
366
You can set the following properties to affect the scalability of EPICenter:
NOTE
You should not change the values for traps and syslog messages accepted unless the EPICenter Server reports
dropping lots of traps. Run the
Server State Summary Report in the Reports applet to view the current performance
metrics.
SNMP Properties
When you select SNMP from the drop-down menu field at the top of the properties panel, you can set
the following properties:
Thread Pool Size This specifies the maximum number of threads available. The default is 40.
Thread Default Alloc Size This specifies the default number of threads allocated for a process request. The default
is 20.
Traps per Device in 1/2
Minute This specifies the maximum number of traps that can be received from an individual
device in 28 seconds. If more than this number of traps are received from an individual
device within a 28 second interval, the excess traps are dropped.
Total Traps Accepted per
Minute This specifies the maximum total number of traps that EPICenter can receive from all
managed devices in 55 seconds. If more than this number of traps are received within
a 55 second interval, the excess traps are dropped. The default is 275, the maximum
you can set is 500.
Syslog Messages per
Device in 1/2 Minute This specifies the maximum number of syslog messages that can be received from an
individual device in 28 seconds. If more than this number of traps are received within a
28 second interval, the excess messages are ignored.
Total Syslog Messages
Accepted per Minute This specifies the maximum number of syslog messages that EPICenter can receive in
one minute from all managed devices. If more than this number of messages are
received within a one-minute interval, the excess messages are ignored. The default is
275, the maximum you can set is 500.
Poll Interval The interval, in minutes, between SNMP polls of a switch to fetch basic device status
information. The default is five minutes. The range is one minute to one hour. You can
disable all SNMP polling by setting this property to zero.
Note: This Poll Interval is not the same as the Device Polling Interval you can set
through the Inventory Manager. The Device Polling Interval controls the frequency of
polling for detailed device information such as software version, BootROM version, and
so on. The polling interval set here in the Administration applet controls only the basic
SNMP status information necessary to ensure SNMP reachability, and is typically
performed relatively frequently.
Timeout Period The length of time, in seconds, to wait for an SNMP poll request to complete, in
milliseconds, before timing out. The default is five seconds. The range is one to 60
seconds.
This setting determines the time-out interval only for the first unsuccessful SNMP
request; once a request times out, subsequent requests will time out more slowly, based
on an exponential time-out back-off algorithm, until it reaches the maximum number of
retries.
Number of Retries The number of SNMP requests that should be attempted before giving up, for a request
that has timed out. The default is one.
EPICenter Trap Receiver
Port The port on which EPICenter expects to receive traps. Default is port 10550.
Trap Fowarding:
These provide the default settings for the Trap Forwarding alarm action.