H3C LS-3100-52P-OVS-H3 Operation Manual - page 211
1-2
Figure 1-1 Formats of different types of Ethernet OAMPDUs
The fields in an OAMPDU are described as follows:
Table 1-1 Description of the fields in an OAMPDU
Field
Description
Dest addr
Destination MAC address of the Ethernet OAMPDU.
It is a slow protocol multicast address 0180c2000002.
Source addr
Source MAC address of the Ethernet OAMPDU.
It is the bridge MAC address of the sending side and is a unicast MAC address.
Type
Type of the encapsulated protocol in the Ethernet OAMPDU.
The value is 0x8809.
Subtype
The specific protocol being encapsulated in the Ethernet OAMPDU.
The value is 0x03.
Flags Status
information
of an Ethernet OAM entity.
Code
Type of the Ethernet OAMPDU
Table 1-2
shows the function of the three types of OAMPDUs.
Table 1-2 Functions of different types of OAMPDUs
OAMPDU type
Function
Information
OAMPDU
Used for transmitting state information of an Ethernet OAM entity (including
the information about the local device and remote devices, and customized
information) to the remote Ethernet OAM entity and maintaining OAM
connections
Event Notification
OAMPDU
Used by link monitoring to notify the remote OAM entity when it detects
problems on the link in between.
Loopback Control
OAMPDU
Used for remote loopback control. By inserting the information used to
enable/disable loopback to a loopback control OAMPDU, you can
enable/disable loopback on a remote OAM entity.
Ethernet OAM Implementation
This section describes the working procedures of Ethernet OAM.