Appendix
C ATM OAM Functionality
Installation and Operation Manual
C-4
OAM Modes of Operation over ATM
ACE-3105, ACE-3205 Ver. 5.2
Figure
C-7. VC Intermediate Point – Case B
•
If the other side of the VC XC is set as a segment point:
F5 end-to-end OAM cells are forwarded transparently to the other side of
the XC. F4 segment and end-to-end and F5 segment OAM cells are
dropped from the cell stream.
Figure
C-8. VC Intermediate Point – Case C
•
When a failure is detected on the physical port, AIS state is declared and F5
end-to-end AIS cells are generated towards the forward direction.
Figure
C-9. VC Intermediate Point – Case D
•
For OAM loopback cells (see
), an ID match check
determines the loopback state:
