Opengear IM4200 User Manual

Chapter 10: Nagios Integration
222 Console Server & RIM Gateway User Manual
If you need other plug-ins to be loaded into the IM42xx firmware:
 If the plug-in in a Perl script, it must be rewritten as the console server does not support Perl at this point.
However, if you do require Perl support, please make a feature request to support@opengear.com
 Individual compiled programs may be generated using gcc for ARM. Again contact support@opengear.com for
details
10.4.4 Number of supported devices
Ultimately the number of devices that can be supported by any particular console server is a function of the number of
checks being made, and how often they are performed. Access method will also play a part. The table below shows the
performance of three of the console server models (1/2 port, 8 port and 16/48 port) tabulating:
Time
No encryption
3DES
SSH tunnel
NSCA for single check
~ ½ second
~ ½ second
~ ½ second
NSCA for 100 sequential checks
100 seconds
100 seconds
100 seconds
NSCA for 10 sequential checks, batched upload
1 ½ seconds
2 seconds
1 second
NSCA for 100 sequential checks, batched upload
7 seconds
11 seconds
6 seconds
No encryption
SSL
no encryption - tunneled over
existing SSH session
NRPE time to service 1 check
1/10
th
second
1/3
rd
second
1/8
th
second
NRPE time to service 10 simultaneous
checks
1 second
3 seconds
1 ¼ seconds
Maximum number of simultaneous
checks before timeouts
30
20 (1,2 and 8)
or 25 (16 and
48 port)
25 (1,2 and 8 port), 35 (16 and
48 port)

Opengear IM4200 Specifications

General

Brand	Opengear
Model	IM4200
Category	Gateway
Language	English