Oam; Chapter 32 Oam; Oam Overview; What You Can Do - ZyXEL Communications GS1920v2 Series User Manual

32.1 OAM Overview

Link layer Ethernet OAM (Operations, Administration and Maintenance) as described in IEEE 802.3ah is a
link monitoring protocol. It utilizes OAM Protocol Data Units or OAM PDUs to transmit link status
information between directly connected Ethernet devices. Both devices must support IEEE 802.3ah.
Because link layer Ethernet OAM operates at layer two of the OSI (Open Systems Interconnection Basic
Reference) model, neither IP or SNMP are necessary to monitor or troubleshoot network connection
problems.
The Switch supports the following IEEE 802.3ah features:
• Discovery – this identifies the devices on each end of the Ethernet link and their OAM configuration.
• Remote Loopback – this can initiate a loopback test between Ethernet devices.

32.1.1 What You Can Do

• Use the OAM Status screen
Ethernet OAM is enabled.
• Use the OAM Setup screen
• Use the OAM Remote Loopback screen

32.2 OAM Status

Use this screen to view the configuration of ports on which Ethernet OAM is enabled. Click PORT > OAM
> OAM Status in the navigation panel.

Chapter 32 OAM

(Section 32.2 on page 192) to view the configuration of ports on which
(Section 32.3 on page 197) to enable Ethernet OAM on the Switch.
(Section 32.4 on page
GS1920v2 Series User's Guide
192
C
H A P T E R
198) to perform remote-loopback tests.
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OAM