User guide

March 2005 Building Your Canopy Network
Through Software Release 6.1
Page 150 of 425 Issue 1
Canopy System User Guide
Jitter
This field displays the current quality of reception
◦ for the signal from the AP to which the SM is registered if the SM is registered.
◦ from any beacon if the SM is scanning.
An acceptable link has a jitter value between 0 and 4 in Release 4.0 and later releases or
between 5 and 9 in any earlier release. However, to achieve the best link possible, the
alignment of the module should balance good jitter values against good RSSI values.
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NOTE:
Unless the page is set to auto-refresh, the value displayed is the jitter
value at the instant the Status page was called. To keep a current view
of the jitter, refresh the browser screen or set to auto-refresh.
Air Delay
This field displays the distance in feet between this SM and the AP. To derive the
distance in meters, multiply the value of this parameter by 0.3048. Distances reported as
less than 200 feet (61 meters) are unreliable.
Site Name
This field indicates the name of the physical module. You can assign or change this
name on the Configuration web page. This information is also set into the sysName
SNMP MIB-II object and can be polled by an SNMP management server.
Site Contact
This field indicates contact information for the physical module. You can provide or
change this information on the Configuration web page. This information is also set into
the sysName SNMP MIB-II object and can be polled by an SNMP management server.
To resume the test, perform the following steps.
Procedure 11: Verifying and recording information from SMs
1. Verify that the Session Status field of the SM Status page indicates
REGISTERED.
NOTE: This indication confirms that the SM is properly functional.
2. While your browser is set to this SM Status page, note (or print) the values of the
following fields:
◦ Device type
◦ Software Version
◦ Software Boot Version
◦ FPGA Version
3. Systematically ensure that you can retrieve this data (from a database, for
example) when you later prepare to deploy the SM to subscriber premises.
4. Return your browser to the Sessions page of the AP.
5. Note the LUID of the next SM that you wish to test.