Table of Contents
This section contains information on advanced topics, which many users will not be concerned about.
Some custom configuration is possible through the use of the sFlowTrend-Pro properties file. Modifying this is only recommended for advanced users. The file must be editing using a standard text editor, and sFlowTrend-Pro must be restarted before any of the changes will take effect.
If running sFlowTrend-Pro as a service, then both the
client and the
server have their own property files. Care must be taken to modify
the appropriate one, depending on the desired outcome. After
modifying the server property file, then the service must be
restarted for the changes to take effect.
The properties file is called
config.prp,
and it is located in the sFlowTrend-Pro data directory (which can be
identified and changed through the sFlowTrend-Pro
→
menu selection). If the
config.prp
file does not exist in this directory, then it must first be
created.
The file is organised as a series of lines, where each line is of the form:
propertyName = value
For example,
chart.topn = 8
would change the number of entries in a top-n to 8. Note that all properties and values must be entered exactly as specified. Some of the properties that can be modified using the properties file are:
- chart.font, chart.legend.font, chart.title.font, chart.subtitle.font
-
These settings control the fonts used for the charts
displayed in the Charts tab.
The format for these settings are:
fontname-style-pointsize fontname-pointsize fontname-style fontnamewhere style is case insensitive "PLAIN", "BOLD", "BOLDITALIC", or "ITALIC" for example Arial-BOLD-11. - chart.topn
-
Controls how many entries are displayed in each
top-n chart (ie the value of
n). The default value is 5. - circles.font, circles.legend.font, circles.title.font, circles.subtitle.font
-
These settings control the fonts used for the
Circles charts.
The format for these settings are:
fontname-style-pointsize fontname-pointsize fontname-style fontnamewhere style is case insensitive "PLAIN", "BOLD", "BOLDITALIC", or "ITALIC" for example Arial-BOLD-11. - circles.maxFlows
- Controls the number of flows displayed in the Circles charts. The default value is 100.
- database.hoursPersistent
- Controls how many hours of data will be stored in the database, before being flushed. This number can be reduced from the default of 168 (1 week), if the database is getting too large.
- sflowtrend.autoEnable
-
The default value for this setting is
true. In this case, sFlowTrend-Pro will automatically enable and start collecting data from the firstnswitches that it receives unsolicited (command line configured) sFlow from, wherenis the maximum number of switches allowed by the software license. To control manually which switches are enabled, set this value tofalse. - sflowtrend.samplingRate.[ifSpeed.]medium
-
If sFlowTrend-Pro is using SNMP to configure the switches to send sFlow, sFlowTrend-Pro will use this value to configure the sampling rate for all interfaces of the given ifSpeed. The default values are:
sflowtrend.samplingRate.medium = 512 sflowtrend.samplingRate.10.medium = 128 sflowtrend.samplingRate.100.medium = 256 sflowtrend.samplingRate.1000.medium = 512 sflowtrend.samplingRate.10000.medium = 1024For example
sflowtrend.samplingRate.100.medium = 256tells sFlowTrend-Pro to configure all interfaces with an ifSpeed of 100 Mb/s with a sampling rate of 1 in 256. The value for
sflowtrend.samplingRate.mediumis used by sFlowTrend-Pro when configuring an interface with an ifSpeed for which a sampling rate has not been specified. For example, with the default sampling rate settings, a 4 Gb/s trunk would be configured with a sampling rate of 1 in 512.You can specify sampling rates for other ifSpeeds. For example
sflowtrend.samplingRate.8000.medium = 1024tells sFlowTrend-Pro to configure all interfaces, with an ifSpeed of 8 Gb/s, with a sampling rate of 1 in 1024.
- sflowtrend.useForce
-
The default value for this setting is
false. In this case, if sFlowTrend-Pro is using SNMP to configure the switches to send sFlow, and finds that a switch has already been configured by another application and there are no unclaimed receiver entries on the switch, then sFlowTrend-Pro will not configure the switch. In this case sFlowTrend-Pro will show the switch status as Already in use. If the value for this setting istrueand there are no unclaimed receiver entries on the switch, then sFlowTrend-Pro will overwrite the first receiver entry forcibly claim it. - client.serverPort
-
This setting controls the TCP port used by the client
to connect to the server. It must match the
server.webserver.portof the server you are connecting to (unless the port is changed in the connect dialog of the client - for more information, see Section 11.3, “Connecting to a server”). The default is8087. - client.webserver.enable
-
Set this to the value
falseto stop the client (when running both as an application or as a service) web server being started when sFlowTrend-Pro runs. Disabling the web server also disables the ability to integrate sFlowTrend-Pro with other applications. - client.webserver.port
-
The TCP port that the client web server will listen on.
This default value is
8086. - client.webserver.localonly
-
By default, this setting is
true, which means that the client web server only responds tolocalhost. It is a good idea to restrict the web server like this to avoid any security issues. However, if you desire any host to be able to access the web server, then set this tofalse. - server.webserver.port
-
The TCP port that the server web server will listen on.
This default value is
8087. If this is changed, then a client connecting to the server would also need to change to the same value (see client.serverPort). - server.webserver.localonly
-
By default, this setting is
false, which means that the server web server can respond to requests from any client. If you want to disallow clients other than the system that is running the server from connecting to the server, then set this property totrue.