Installation and Operation Manual
Appendix
C ATM OAM Functionality
ACE-3105, ACE-3205 Ver. 5.2
OAM Modes of Operation over ATM
C-11
Figure
C-28. VC Endpoint – Case D
•
When a VC endpoint is set as a CC sink point, F5 end-to-end CC cells are
expected to be received every second. If no CC cell has been received during
the last 3.5 seconds, AIS state is declared and F5 end-to-end RDI cells are
generated towards the backward direction.
Figure
C-29. VC Endpoint – Case D
•
When a VC end point is set as CC both, it functions both as a source and a
sink point.
•
For OAM loopback cells (see
), an ID match check
determines the loopback state (see
), and delays are calculated if
the loopback cell has been authenticated and returned within 5 seconds (see
):
Figure
C-30. VC End Point – Case E