PXF4336 Datasheet, PDF (254/425 Pages) Infineon Technologies AG – ABM Premium ATM Buf fer Manager

ABRen
ABRvp
EPDen
PPDen
Data Sheet
ABM-P
PXF 4336 V1.1
Register Description
3d
TH_i >>4
TL_i:= 240
4d
TH_i >>5
TL_i:= 248
5d
TH_i >>6
TL_i:= 252
6d
TH_i >>7
TL_i:= 254
7d
TH_i >>8
(hysteresis ineffective) TL_i:= 256
Congestion indication
This bit enables congestion indication marking in user cells (EFCI
marking) within every ABR connection (LCI) that belongs to this
traffic class:
0
Congestion indication disabled.
1
Congestion indication enabled.
Note: This ABR function is a buffer manager function and not
related to the Enhanced Rate Control (ERC) unit.
Indication for update of RM cells (ABR service category) relating
to the VP or to the individual VC, respectively:
0
Congestion is indicated via VC RM cells (F5 flow).
VC RM cells are identified with PTI=110 and VCI <> 6.
1
Congestion is indicated via VP RM cells (F4 flow).
VP RM cells are identified with VCI=6 (regardless of the
value of the PTI field)
Note: According to the standards, VP RM cells MUST
have VCI=6 and PTI=110. If cells with PTI=110
and VCI <> 6 are contained in the cell stream they
are ignored. This is the correct behavior for an
ABR VC within an ABR VP.
EPD for the individual traffic class. EPD is used for every
connection (LCI) within that traffic class (see Chapter 3.4.1.6.3):
0
EPD is disabled.
1
EPD is enabled.
PPD for the individual traffic class. PPD is used for every
connection (LCI) within that traffic class (see Chapter 3.4.1.6.3):
0
PPD is disabled
254
2001-12-17