User guide

PTP 800 Series User Guide Managing security
phn-2513_004v000 (Oct 2012)
7-53
4
Select Reboot Wireless Unit. The Reboot Confirmation dialog is displayed.
5
Select OK. The reboot progress message is displayed. On completion, the unit
restarts with AES encryption disabled.
1+1 Hot Standby link
To disable AES encryption for a 1+1 Hot Standby link, proceed as follows:
1
If link planning indicates that the inactive units are not able to operate a link of
satisfactory quality, force a protection switch at one end of the wireless link.
2
Disable fault protection switching for all PTP 800 units, as described in Enabling
and disabling fault protection on page 7-43.
3
Disable AES Encryption for both inactive PTP 800 units as defined above for
unprotected links.
4
Force a simultaneous protection switch at both ends of the wireless link, as
described in Forcing protection switches on page 7-37. Check that the link is
operating correctly without encryption.
5
Disable AES Encryption for both newly inactive PTP 800 units as defined in the
above procedure for unprotected links.
6
Force a simultaneous protection switch at both ends of the wireless link, as
described in Forcing protection switches on page 7-37. Check that the link is
operating correctly without encryption.
7
If a protection switch was forced at one end of the link (Step 1) force a
protection switch at the other end of the link so that the link is operated by the
two primary units.
8
Re-enable protection switching for all PTP 800 units, as described in Enabling
and disabling fault protection on page 7-43.
Changing AES encryption keys
Perform this task to update the encryption key used for data transmitted over the PTP 800
bridge. For more information on AES encryption, see AES license on page 1-60
This procedure must be repeated at both ends of the link.
If the AES encryption key is changed at one end of the link, it must also be changed to the
same value at the other end of the link, otherwise the link will not work.