Configuring Ethernet Oam; Overview; Major Functions Of Ethernet Oam; Ethernet Oampdus - HPE FlexNetwork HSR6800 series Configuration Manual

Configuring Ethernet OAM

Ethernet OAM is supported only when the SAP module is operating in bridge mode.

Overview

Ethernet Operation, Administration and Maintenance (OAM) is a tool that monitors Layer 2 link
status and addresses common link-related issues on the "last mile." Ethernet OAM improves
Ethernet management and maintainability. You can use it to monitor the status of the point-to-point
link between two directly connected devices.

Major functions of Ethernet OAM

Ethernet OAM provides the following functions:
•
Link performance monitoring—Monitors the performance indices of a link, including packet
loss, delay, and jitter, and collects traffic statistics of various types
•
Fault detection and alarm—Checks the connectivity of a link by sending OAM protocol data
units (OAMPDUs) and reports to the network administrators when a link error occurs
•
Remote loopback—Checks link quality and locates link errors by looping back OAMPDUs

Ethernet OAMPDUs

Ethernet OAM works on the data link layer. Ethernet OAM reports the link status by periodically
exchanging OAMPDUs between devices, so that the administrator can effectively manage the
network.
Ethernet OAMPDUs include the following types: Information, Event Notification, and Loopback
Control.
Figure 1 Formats of different types of Ethernet OAMPDUs
Table 4 Fields in an OAMPDU
Field
Dest addr
Source addr
Description
Destination MAC address of the Ethernet OAMPDU.
It is a slow protocol multicast address 0180c2000002. Because bridges cannot
forward slow protocol packets, Ethernet OAMPDUs cannot be forwarded.
Source MAC address of the Ethernet OAMPDU.
It is the bridge MAC address of the sending side and is a unicast MAC address.
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