cn8236 Mindspeed Technologies, cn8236 Datasheet - Page 236

• Manufacturer Part Number: cn8236
• Description: Atm Servicesar Plus With Xbr Traffic Management
• Manufacturer: Mindspeed Technologies

7.0 OAM Functions
7.1 OAM Overview
7.1.4 Local vs. Host Processing of OAM
7-6
Table 7-4. OAM Type and Function Type Identifiers
Fault Management
Performance Management
Activation/Deactivation
NOTE(S):
(1)
(2)
OAM Type indicates the type of management function performed by this cell (for example, fault management, performance
management, etc.).
Function Type indicates the actual function performed by this cell within the management type indicated by the OAM Type
field.
OAM Type
(1)
in
ATM carries with it significant network management overhead. The CN8236
supports those robust OAM features described previously. Due to the breadth of
ATM applications and the continuing evolution of ATM management standards, it
is essential that a range of flexibility be provided in the processing of network
management overhead. To provide this flexibility, the CN8236 includes an
optional local processor interface.
reassembly, it can route OAM traffic including PM traffic to and from this local
processor, thereby off-loading ATM network management from the host. Thus,
host processing power is focused on the user applications specifically concerned
with processing ATM user data traffic.
queues (OAM_BFR_QU and OAM_STAT_QU, addresses for both assigned in the
RSM_CTRL1 register). If the OAM_QU_EN bit in the RSM_CTRL1 register is
set to a logic high, the CN8236 routes OAM traffic to these global queues. With
SAR-shared memory addresses assigned to these global queues, the CN8236
processes OAM traffic through the local processor, thereby freeing the host from
these management functions. In addition, the global OAM segmentation status
queue, SEG_CTRL(OAM_STAT_ID), is used if the OAM_STAT bit in the
segmentation buffer descriptor is a logic high.
Table
The OAM Type and Function Type identifiers as specified by I.610, are listed
Since the CN8236 is capable of SAR-shared memory segmentation and
To accomplish this, the CN8236 provides global OAM buffer and status
7-4.
Mindspeed Technologies
Coding
0001
0010
1000
AIS
RDI
Continuity Check
Loopback
Forward monitoring
Backward reporting
Performance Monitoring
Continuity Check
ATM ServiceSAR Plus with xBR Traffic Management
Function Type
™
(2)
28236-DSH-001-B
Coding
0000
0001
0100
1000
0000
0001
0000
0001
CN8236