Chapter 1 Oam Configuration; Oam Overview; Types Of Oampdus - H3C S3610-28P Operation Manual

Operation Manual – OAM
H3C S3610&S5510 Series Ethernet Switches

Chapter 1 OAM Configuration

When performing OAM configuration, go to these sections for information you are
interested in:

OAM Overview

OAM Configuration
Displaying and Maintaining OAM Configuration
OAM Configuration Example
1.1 OAM Overview
Ethernet OAM (meaning operation, administration, and maintenance) is a tool for
monitoring network. It operates on data link layer and can report information about
networks to network administrators through the OAMPDUs exchanged between
devices, enabling network administrators to manage the network more effectively.
Currently, Ethernet OAM is mainly used for detecting data link layer problems occurred
in the "last mile". By enabling Ethernet OAM on two devices connected by a
point-to-point connection, you can monitor the link status of the link between the two
devices. Ethernet OAM provides the following functions.
Link performance monitoring, for detecting link errors
Fault detection and alarm, for reporting link errors to the administrators
Loopback testing, for detecting link errors through non-OAMPDUs

1.1.1 Types of OAMPDUs

Figure 1-1
6
Dest addr
Figure 1-1 The format of different types of OAMPDU
The fields in an OAMPDU are described as follows.
The Dest addr field holds the destination MAC address of an OAMPDU, which is
the multicast MAC address 0180c2000002.
shows the format of different types of OAMPDU.
6 2 1
Source addr Type Subtype Flags Code
Information OAMPDU
Event Notification OAMPDU
Loopback control OAMPDU
2 1
Code Local info TLV Remote info TLV
Code seq Link event TLV
Code OAM Remote Loopback command
1-1
Chapter 1 OAM Configuration
42~1496
Data/Pad
...
...
4
CRC