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STANDARD PRODUCT
PM7323 RCMP-200
DATASHEET
PMC-960543
ISSUE 2
ROUTING CONTROL, MONITORING, & POLICING
200 MBPS
Proprietary and Confidential to PMC-Sierra, Inc.
and for its Customer’s Internal Use.
56
(default) or 3.5 +/- 0.5 sec window, the "CC_alarm" status bit is set. The
"CC_alarm" is cleared upon reception of a single user, AIS or Continuity Check
cell. If the AUTORDI bit in the Cell Processor Configuration register is set and
the "CC_RDI" bit of the OAM Configuration field is set, an RDI cell is presented
on the Output Cell Interface once a second while the Continuity Check alarm is
declared.
The RCMP-200 provides support for processing of Loopback cells by a
microprocessor. The LB[1:0] bits of the Cell Processor Configuration register
determine which loopback cells are copied to the Microprocessor Cell Interface:
all, none or just at OAM flow end-points. If the RCMP-200 is not an OAM flow
end-point, all received loopback cells are routed to the Output Cell Interface.
If the Loopback Indication is non-zero and the Loopback Location ID matches
this node (coded as all '1's for flow end-points), the microprocessor should insert
into the reverse direction a copy of the loopback cell with the Loopback Indication
set to '0'. Otherwise, the microprocessor should discard the cell.
9.3.8 Performance Management Cells
Performance Management (PM) cells are identified with a OAM Cell Type of
0010.
If the RCMP-200 is not the flow end point, the PM cells are passed to the Output
Cell Interface and can be monitored to generate alarms or statistics. If the
RCMP-200 is provisioned as a flow end point, a received PM cell is
unconditionally dropped. If the "PM_activate" bit is a logic 0 or the SRCPM
register bit is logic 1, no further actions are taken.
As a flow end point, the RCMP-200 can be provisioned as source or sink of PM
cells for a specific connection, but not both. If provisioned as a source (i.e. the
SRCPM and the PM_activate VC table bits are both logic 1), the RCMP-200
shall generate a forward PM cell nominally every 128, 256, 512 or 1024 user
cells. The contents of the cell fields are as follows:
Monitoring Sequence Number (MSN) - This field is incremented with each
transmitted PM cell.
Total User Cell Number (TUC) - This field indicates the total number of
transmitted user cells modulo 65536 before the monitoring cell.