PTP 800 Series User Guide Managing security
phn-2513_004v000 (Oct 2012)
7-55
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 using the new encryption key.
5
Change AES Encryption keys for both newly inactive PTP 800 units, as defined
in Unprotected link on page 7-54.
6
Check the System Status page for encryption alarms (Figure 192). If any are
displayed, investigate and correct the encryption configuration.
7
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 using the new encryption keys.
8
Force a protection switch at the local end of the link, so that the link is running
Primary to Primary, and check that the link is operating correctly. This confirms
that the new encryption key is the same for all four units.
9
Re-enable local and remote protection switching, as described in Enabling and
disabling fault protection on page 7-43.
Figure 192 Encryption key mismatch
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