Automatic Resync - Linksys SPA2102-AU Provisioning Manual

Basic Resync
•
If any of these parameters are cleared, the corresponding syslog message is not generated.
Occasionally, it may also be informative to capture an Ethernet packet trace of the interaction between
the SPA and the provisioning server. You can run the Ethernet packet analyzer (such as
Ethereal/Wireshark) on a PC connected through a hub to the same subnet as the SPA.

Automatic Resync

When a SPA is deployed remotely or as part of an internal company deployment, it may need to resync
periodically to the service provider provisioning server, to ensure that any customer profile
configuration changes made on the server are propagated to the endpoint, without requiring an explicit
resync request to the endpoint.
To cause the SPA to automatically and periodically resync to a server, a configuration profile URL is
defined using the Profile_Rule parameter, and a resync period is defined using the Resync_Periodic
parameter.
Exercise
Step 1
Using the PC web browser, open the SPA admin/advanced page, Provisioning tab.
Step 2
Define the Profile_Rule parameter.
Step 3
The following value assumes a TFTP server IP address of 192.168.1.200:
tftp://192.168.1.200/basic.txt
Step 4
In the Resync_Periodic parameter enter a small value for testing such as 30 (meaning 30 seconds).
Step 5
Click Submit all Changes.
With the new parameter settings, the SPA now resyncs to the configuration file specified by the URL
twice a minute.
Step 6
Observe the resulting messages in the SPA syslog trace.
Step 7
Ensure that the Resync_On_Reset parameter is set to yes.
Step 8
Power cycle the SPA.
The SPA also automatically resyncs to the provisioning server whenever it is power-cycled.
If the resync operation fails for any reason, such as if the server is not responding, the unit waits the
number of seconds defined in Resync_Error_Retry_Delay before attempting to resync again. If
Resync_Error_Retry_Delay is zero, the SPA does not try to resync following a failed resync attempt.
Step 9
(Optional) Verify that the value of Resync_Error_Retry_Delay is set to a small number, such as 30,
disable the TFTP server, and observe the results in the syslog trace.
Linksys SPA Provisioning Guide
3-4
Log_Resync_Failure_Msg.
Chapter 3 Provisioning Tutorial
Version 3.0