cn8237 Mindspeed Technologies, cn8237 Datasheet - Page 212

• Manufacturer Part Number: cn8237
• Description: Atm Oc-12 Servicesar Plus With Xbr Traffic Management
• Manufacturer: Mindspeed Technologies

7.0 OAM Functions
7.1 OAM Overview
7.1.1 OAM Functions Supported
7-2
Table 7-1. OAM Functions of the ATM Layer
AIS (Alarm Indication Signal)
RDI (Remote Defect
CC (Continuity Check)
Loopback
PM (Performance
Monitoring)
Activation/Deactivation
System Management
Indication)
OAM Function
Refer to ITU-T Recommendation I.610 for complete information on the structures
and functions of OAM cell generation, detection, and processing.
ITU-T Recommendation I.610.
Recommendation I.610:
done at the software level due to the low bandwidth of OAM traffic (less than 1%
of the bandwidth of active connections).
Reports defect indications in the forward direction.
Reports remote defect indications in the backward direction.
Continuously monitors the continuity of a connection. A continuity cell is used periodically to
check whether a connection is idle or has failed.
Used for
Estimates performance and reports performance estimations in the backward direction.
Activating/deactivating performance monitoring and continuity check.
Used by end-systems only.
Table 7-1
The CN8237 internally supports the following functions as described in ITU-T
• Full Performance Monitoring functions (designed for estimating
• Detection of OAM cells, and routing them as directed by the host
• Generation of OAM cells, as directed by the host
Implementation of the full range of functions in processing OAM cells are
• on-demand connectivity monitoring
• fault localization
• pre-service connectivity verification
transmission performance on any channel, and for reporting performance
estimations in the backward direction)
Mindspeed Technologies
lists the OAM functions of the F4 and F5 OAM flows, as defined in
ATM OC-12 ServiceSAR Plus with xBR Traffic Management
Main Application
™
28237-DSH-001-C
CN8237