S/UNI®-ATLAS-3200 Telecom Standard Product Data Sheet
Preliminary
Source[1:0]: The source of the cell, encoded as follows:
00 : Input Cell Interface
01 : Backwards Cell Interface
10 : Generated Forward PM, AIS, or CC cell
11 : Reserved.
End_to_End_Point: Indicates the connection is provisioned as an OAM flow end point. If the
cell type indicates an unprovisioned connection, search error, or cell transfer error, this bit is not
valid.
Segment_End_Point: Indicates the connection is provisioned as an OAM flow segment end
point. If the cell type indicates an unprovisioned connection, search error, or cell transfer error,
this bit is not valid.
TimeOut: Indicates the cell was removed from a Backward Cell Interface or Microprocessor Cell
Interface because the head-of-line blocking timer has expired, or the associated PHY has been
declared inoperative. When this bit is set, only the SOURCE, PHYID and TYP fields are valid.
NNI: Indicates the connection is associated with a Network-Network Interface (NNI). A logic 0
means the connection belongs to a User-Network Interface (UNI).
VPC: Indicates the connection is provisioned as a Virtual Path Connection (VPC). A logic 0
means the connection is provisioned as a Virtual Channel Connection (VCC).
OAM_Type: A logic 1 identifies a segment OAM cell. A logic 0 identifies an end-to-end OAM
cell. This bit is only valid when the cell type indicates one of the OAM types.
TYP[4:0]: Cell type. This field is encoded as follows:
TYP[4:0]
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
Cell Type
User
OAM AIS
OAM RDI
OAM Continuity Check
OAM Parent Loopback
OAM Returned Loopback
OAM Forward Monitoring PM
OAM Backward Reporting PM
OAM Automated Protection Switching
OAM Activate/Deactivate
OAM Undefined
OAM System Management
Forward RM
Backward RM
Invalid PTI/VCI
Unprovisioned Connection
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1990553, Issue 4
142
PMC [ PMC-SIERRA, INC ]
