Cambium Networks PTP 820 Series User Manual page 980

Chapter 21: TDM Services and Interfaces (CLI)
Path protection can be configured to operate in revertive mode. In revertive mode, the system monitors the
availability of the protected path at all times. After switchover to the protecting path, once the active path is
operational and available without any alarms, the system waits for the duration of the user-configured Wait to
Restore (WTR) time and then, if the active path remains operational and available, initiates a revertive protection
switch. A single WTR time is configured for all the TDM pseudowire services in the system. However, services with
path protection can be configured individually as revertive or non-revertive. You can configure this in the revertive-
admin parameter of the command for creating a tunnel group (see below).
Note
TDM pseudowire services with 1:1 path protection that were configured using software versions
prior to T7.9 are non-revertive.
To set the WTR time for TDM pseudowire services with revertive path protection, enter the following command in
root view:
root> platform wtr-timer set <wtr-timer>
To display the WTR time for TDM pseudowire services with revertive path protection, enter the following
command in root view:
root> platform wtr-timer show
To create a Pseudowire tunnel group, enter the following command in pwe3 view:
pwe3> pwe3 tunnel-group add slot <slot> id <id> primary-id <primary-id>
secondary-id <secondary-id> 1plus1 <1plus1> revertive-admin <revertive>
To enable a Pseudowire tunnel group, enter the following command in pwe3 view:
pwe3> pwe3 tunnel-group enable slot <slot> id <id>
Table 286 Pseudowire Tunnel Group CLI Parameters
Parameter Input Type
wtr-timer Number
slot Number
id Number
primary-id Number
secondary-id Number
Permitted Values Description
10-720 The WTR time, in seconds, for TDM
pseudowire services with revertive path
protection.
1
1-84 The ID of the TDM tunnel group.
Any configured TDM The tunnel you want to assign as the
tunnel. primary tunnel.
Any configured TDM The tunnel you want to assign as the
tunnel. secondary tunnel.
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Configuring TDM Pseudowire Services (CLI)