Page 23 of 25
Chapter 9 IEEE802.3ah OAM Functions
8.1 Overview
RC552-FE(A) is the media converter that is compliant to IEEE802.3ah standards and implements in-band remote management
at data link layer. In Raisecom network management system, it used OAM-based proprietary management tunnels to implement
management functions.
RC552-FE(A) SLAVE mode supports OAM Discovery, MIB Variable Reply, Loopback, and Dying Gasp Alarm standard OAM
functions.
8.2 OAM Discovery
If RC552-FE(A) is configured to SLAVE mode, it is the passive terminal in OAM. After connecting with OAM active device,
RC552-FE(A) will wait for OAM active device to originate OAM discovery process. After OAM discovery success, it is able to
implement other OAM functions.
Note: RC552-FE(A) supported max OAMPDU is 1024 Bytes.
8.3 MIB Variable Reply
RC552-FE(A) provided switching microchip has MIB information reply function, which is a sub-collection of standard EMIB.
RC552-FE(A) only answers active device’s MIB information request. When requested variables are not supported by
RC552-FE(A), it will reply with a null indication.
8.4 Loopback
RC552-FE(A) supports loopback operation that originated by OAM active device. Its copper interface will be disconnected
from subscriber’s traffic during loopback operation and restored automatically after loopback.
8.5 Dying Gasp Alarm
When RC552-FE(A)’s power is down, it will send Dying Gasp alarm indication to OAM active device.
To Next Page
Loading...
Need help?
General
