PM7323 datasheet(67/219 Pages) PMC

67 / 219 page

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.

(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

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.

PM7323 Datasheet(PDF) 67 Page - PMC-Sierra, Inc