Cambium Networks PTP 820 Series, User Manual, Page: 997 / 1149

Chapter 22: Synchronization (CLI) Configuring the Revertive Timer (CLI)
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Configuring the Revertive Timer (CLI)
You can configure a revertive timer for the unit. When the revertive timer is configured, the unit will not switch to
another synchronization source unless that source has been stable for at least the number of seconds defined in
the revertive timer. This helps to prevent a situation in which numerous switchovers occur when a synchronization
source reports a higher quality for a brief time interval, followed by a degradation of the source's quality. By
default, the revertive timer is set to 0, which means that it is disabled.
Note
TDM trails with 1:1 path protection that were configured using software versions prior to T7.9 are
non-revertive.
The Revertive timer must be configured before creating a protecting TDM trail so that the configured
WTR time will be in effect for this trail.
To configure the revertive timer, enter the following command in root view:
root> platform sync revertive-timer set rev_time <rev_time>
Table 294 Synchronization Revertive Timer CLI Parameters
Parameter Input Type Permitted Values Description
rev_time Number 1-1800 The revertive timer, in seconds.
The following command sets the revertive timer as 7 seconds:
root> platform sync revertive-timer set rev_time 7
To display the revertive timer, enter the following command in root view:
root> platform sync revertive-timer show