S/UNI®-ATLAS-3200 Telecom Standard Product Data Sheet
Preliminary
Figure 14 F4 to F5 OAM Flows
VPC
VCC 1
VCC 2
VCC n
VC Table Entries
F4 OAM
VCC 1
VCC 2
Connection
VCC n
The following F4 to F5 Fault Management scenarios are supported by the S/UNI-ATLAS-3200.
Figure 15 Termination of F4 Segment and End-to-End-Point Connection
Connection End-Point (End-to-End Point)
Segment End-Point
VCC-AIS-EtE(Connection within a defined segment)
VCC1
VCC-AIS-Seg (Connection within a defined segment)
VCC2
VCC-AIS-EtE (Connection not within a defined segment)
VCC3
VCC-AIS-EtE
VCC-RDI-Seg
F4 (VPC)
VCC-RDI-EtE
VCC4
VCC5
VCC-RDI-Seg
VCC-RDI-EtE
VPC-AIS-EtE
VPC-RDI-EtE
In Figure 15 above, a VPC flow is being terminated. The VPC flow is both a segment end-point,
and a connection (end-to-end) point. In the search table both the segment and end-to-end
connections would resolve to a single F4 OAM connection. Five VCCs are being switched out
from the VPC connection (all five VCCs would be setup as separate connections). In the event
that an end-to-end VPC-AIS cell is received on end-to-end VPC connection, an end-to-end VPC-
RDI cell would be generated (if the AUTO_RDI bit is logic 1 in the VC Table). The end-to-end
VPC-RDI cell would carry the end-to-end AIS Defect Location and Defect Type fields. The
response of the switched VCCs is as follows:
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1990553, Issue 4
109
PMC [ PMC-SIERRA, INC ]
