User guide

PTP 800 Series User Guide Managing 1+1 Hot Standby links
phn-2513_004v000 (Oct 2012)
7-37
Forcing protection switches
Protection switches may be forced for a variety of reasons, for example:
• During maintenance operations.
• During software or hardware upgrades.
• To investigate error conditions that have not resulted in a protection switch.
• To confirm that the inactive unit remains fully functional.
To avoid loss of service, force protection switches only if link planning indicates that the
unit(s) are capable of operating a satisfactory link.
After a protection switch has been initiated, if work is to be carried out on the newly
inactive unit, ensure that fault protection is temporarily disabled until the activity is
completed.
To force protection switches, click on the buttons on the Protected Link page. The text in
the buttons varies depending upon which units are active and which are inactive.