Installation and Operation Manual
Appendix
C ATM OAM Functionality
ACE-3105, ACE-3205 Ver. 5.2
OAM Modes of Operation over ATM
C-5
Figure
C-10. VC Intermediate Point – Case E
VP Segment Point
When a VP connection point is set as a segment point, it operates as follows:
•
F4 end-to-end, F5 segment and end-to-end OAM cells are forwarded
transparently to the other side of the XC. F4 segment OAM cells are dropped
from the cell stream, while F4 segment AIS, RDI and CC cells are monitored.
Figure
C-11. VP Segment Point – Case A
•
When F4 segment AIS cells are received on the connection point, AIS state is
declared. F4 end-to-end AIS cells are generated towards the forward
direction, while F4 segment RDI cells are generated towards the backward
direction.
Figure
C-12. VP Segment Point – Case B
Содержание ACE-3105
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