Chapter 8. Protection
Vol. IV-8-10 Alcatel-Lucent
• Auxiliary data circuits and any payload circuits configured for point-to-point
operation are not protected in the event of a ring wrap (as for a ring operation
using 1+0 links).
• NMS is supported on the 1+1 ring links (as for ring operation using 1+0 links).
• Standard ring diagnostics are supported at the ring level, and operate
independently of the 1+1 diagnostics.
• Standard 1+1 link diagnostics are supported on the 1+1 ring links.
• For 1+1 ring links the RAC Online LED indications are governed by the ring
state:
•For an unwrapped 1+1 (space diversity) link the RAC Online LEDs are
governed by normal SD link operation; for the default situation of primary
RAC online transmitting and secondary RAC online receiving (controlling
the receive diversity bus) both RACs at each end of the link indicate green
Online.
•For a wrapped 1+1 link the RAC Online LED indications are governed by
the ring. All RAC Online LEDs are unlit if the 1+1 link has been restored
but waiting for the error-free timer and, if set, the time of day timer to time
out (as for ring operation using 1+0 links).
Link and Data Protection Configuration Screen
The Protection Configuration screen provides:
• Identification of protectable and/or protected Link (RAC) and Data (DAC)
entities
• Slot location of associated installed RAC and DAC plug-ins
• Identification of protected and non-protected pairings
• Selection of plug-in pairs for a protected configuration
• Selection of the protection type
• Selection of the primary and secondary, or east and west partners.
Figure 8-3 on page 8-11 shows a typical Protection screen for an INUe.
Figure 8-4 on page 8-12 shows a typical Protection screen for a ring selection.
Figure 8-5 on page 8-13 shows a Protection Selection Window for a DATA/DAC
selection.
For configuration procedures refer to:
• Description of Node Protection Configuration Screen on page 8-14
• Configuring Node Protection Options on page 8-14
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