S/UNI®-ATLAS-3200 Telecom Standard Product Data Sheet
Preliminary
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Non-Compliant Cell Count1[15:0]: the number of CLP0+1 cells discarded by the UPC/NPC
function. GR-1248-CORE R9-6.
Non-Compliant Cell Count2[15:0]: the number of CLP0 cells discarded by the UPC/NPC
function. GR-1248-CORE R9-7.
Non-Compliant Cell Count3[15:0]: the number of CLP0 cells tagged as CLP1 cells by the
UPC/NPC function. GR-1248-CORE CO9-8.
If the Policing Rollover FIFO Enable bit in the Policing Configuration field of the VC Table is
logic 1, then whenever the MSB of any of the non-compliant counts is logic 1, an attempt is made
to make an entry to the Count Rollover FIFO. If the entry is made successfully, then the MSB is
set back to logic 0. Otherwise, it remains 1 until an entry is sucessfully made. Thus each Count
rollover entry represents 215 non-compliant count events. If the Policing Rollover FIFO Enable
bit is logic 0, then the non-compliant counts will saturate at all 1’s.
10.7.2 Per-PHY Policing
The Cell Processor also maintains a single GCRA instance per-PHY (48 in total) in an internal
RAM which may be programmed via the PHY Policing Address and Access Control Register.
The per-PHY policing may be selectively enabled for any number of connections for a PHY. The
PHY Police bit in the Policing Configuration field of the VC table determines whether or not
PHY policing is active on that connection. The PHYID[5:0] field in the VC Linkage Table
determines which of the 48 internal policing instances is addressed if per-PHY policing is active.
The per-PHY policing is evaluated alongside the per-connection policing. If a cell is discarded as
a result of per-PHY policing, the per-connection policing parameters are not updated. Similarly,
if a cell is discarded as a result of per-connection policing, the per-PHY policing parameters are
not updated.
The table below describes the S/UNI-ATLAS-3200 actions when per-PHY policing is enabled.
Table 22 Actions with per-PHY Policing
Per-VC GCRA
Per-PHY GCRA
Pass
(Note, the per-VC GCRAs are
evaluated as described in Table
18, Table 19, and Table 20)
Fail
No Action
Tag
Discard
Update VC TAT
Update VC TAT
Update VC TAT
No Update
Pass
Update PHY
TAT
Update PHY TAT
Update PHY TAT
No Update
No Update
No Update
No Update
No Update
No Update
No Update
No Update
No Update
No Update
Fail
No Action
Tag
Discard
The per-PHY policing has a programmable action field and configurable register bits to police
any combination of user cells, OAM cells, RM cells, high priority cells and low priority cells.
Non-compliant cell counts are also maintained on a per-PHY basis.
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1990553, Issue 4
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PMC [ PMC-SIERRA, INC ]
