Oam; Chapter 39 Oam; Oam Overview; What You Can Do - ZyXEL Communications 43222612 User Manual

39.1 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.

39.1.1 What You Can Do

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

39.2 OAM Status

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

Chapter 39 OAM

C
(Section 39.2 on page 347) to view the configuration of ports on which
(Section 39.3 on page
(Section 39.4 on page
GS2220 Series User's Guide
347
H A P T E R

OAM

351) to enable Ethernet OAM on the Switch.
353) to perform remote-loopback tests.
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