S/UNI®-ATLAS-3200 Telecom Standard Product Data Sheet
Preliminary
Name
Description
an SDUTYP equal to logic 1). The MFL conformance test can be
disabled by setting the MFL field in the VC table to all ones. This field
should be initialized to MFL – 1.
GFR State[2:0]
The GFR State is an internally maintained state variable which must be
programmed to 0 at connection startup and not changed thereafter.
10.8 Cell Counting
The S/UNI-ATLAS-3200 maintains counts on a per-connection basis, per-PHY basis and over the
aggregate cell stream.
The following parameters are stored on a per-connection basis in the VC Tables:
•
Two 32-bit “billing” cell counts that may be programmed to count any combination of the
following:
A. CLP0 user cells.
B. CLP1 user cells.
C. CLP0 OAM cells.
D. CLP1 OAM cells.
E. CLP0 RM cells.
F. CLP1 RM cells.
G. CLP0 cells with Invalid VCI/PTI
H. CLP1 cells with Invalid VCI/PTI.
•
•
Three Non-compliant cell counts, which may count (Non-Compliant CLP0 or CLP0+1 cells,
Discarded CLP0 or CLP0+1 Cells, Tagged Cells, Total CLP 0 or CLP0+1 frames, Non-
Compliant CLP0 or CLP1 Frames, etc.) These counts are described in Section 10.7, which
covers policing.
Per-PHY counts of CLP0, CLP1, valid OAM, valid RM, Invalid OAM/RM, Congested (EFCI
or GFC), timed-out, and Bad VPI/VCI/PTI cells.
The two programmable 32-bit cell counts represent the state of the cells before policing. The
non-compliant cell counts can be used to derive the cell counts after policing.
The programmability of the two 32-bit cell counts allows the ability to provision scheduled
measurements and special studies on each connection.
When aggregating or terminating a VPC, the VPC OAM Connection’s 32-bit billing counts are
updated based on the total traffic arriving on the VPC. That is, all cells arriving on associated
VCCs are counted as user cells in the VPC OAM Connection. This permits aggregate counts to
be generated with little microprocessor effort.
If Performance Management is activated, a range of forward monitoring and backward reporting
statistics are stored. These statistics are described in Section 10.14 which covers Performance
Management.
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1990553, Issue 4
103
PMC [ PMC-SIERRA, INC ]
