R3303-HP HSR6800 Routers High Availability Configuration Guide
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You can enable Ethernet OAM remote loopback on a specific port in user view, system view, or Layer 2
Ethernet port view. The configuration effects are the same.
Configuration guidelines
• Ethernet OAM remote loopback is available only after the Ethernet OAM connection is established.
It can be performed only by Ethernet OAM entities operating in active Ethernet OAM mode.
• Remote loopback is available only on full-duplex links that support remote loopback at both ends.
• Ethernet OAM remote loopback must be supported by both the remote port and the sending port.
• Enabling Ethernet OAM remote loopback interrupts data communications. After Ethernet OAM
remote loopback is disabled, all the ports involved will shut down and then come up. Ethernet OAM
remote loopback can be disabled by any of the following events: executing the undo oam enable
command to disable Ethernet OAM, executing the undo oam loopback interface or undo oam
loopback command to disable Ethernet OAM remote loopback, or the Ethernet OAM connection
timing out.
• Ethernet OAM remote loopback is only applicable to individual links. It is not applicable to link
aggregation member ports. In addition, do not assign ports where Ethernet OAM remote loopback
is being performed to link aggregation groups. For more information about link aggregation
groups, see Layer 2—LAN Switching Configuration Guide.
• Enabling an internal loopback test on a port already in a remote loopback test can terminate the
remote loopback test. For more information about loopback test, see Interface Configuration Guide
.
Enabling Ethernet OAM remote loopback in user view
Task Command
Remarks
Enable Ethernet OAM remote
loopback on a specific port.
oam loopback interface
interface-type interface-number
Disabled by default.
Enabling Ethernet OAM remote loopback in system view
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Enable Ethernet OAM remote
loopback on a specific port.
oam loopback interface
interface-type interface-number
Disabled by default.
Enabling Ethernet OAM remote loopback in Ethernet port view
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Enter Ethernet port view.
interface interface-type
interface-number
N/A