ZyXEL Communications GS1920-48HPv2, Руководство пользователя

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Chapter 34 OAM
GS1920v2 Series User’s Guide
308
C
HA PTER
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O AM
34.1 O AM O ve rvie w
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.
34.1.1 Wha t Yo u C a n Do
• Use the
O AM Sta tus
screen ( Section 34.2 on page 308 ) to view the configuration of ports on which
Ethernet OAM is enabled.
• Use the
O AM C o nfig ura tio n
screen ( Section 34.3 on page 313 ) to enable Ethernet OAM on the Switch.
• Use the
O AM Re m o te Lo o pb a c k
screen ( Section 34.4 on page 314 ) to perform remote-loopback tests.
34.2 O AM Sta tus
Use this screen to view the configuration of ports on which Ethernet OAM is enabled. Click
Adva nc e d
Applic a tio n
>
O AM
in the navigation panel.