Optional) Configure A Receiving Device To Ignore Remote Loopback Requests - Huawei AR530 Series Configuration Manual

Huawei AR530&AR550 Series Industrial Switch Routers
Configuration Guide - Reliability
Step 2 Configuring the interface in active EFM mode to send test packets
1.
2.
Step 3 Disabling remote loopback
1.
2.
3.
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7.5.3.2 (Optional) Configure a receiving device to ignore remote loopback requests

Issue 01 (2014-11-30)
Remote loopback is implemented successfully only when EFM protocols at the local end
and the peer are in handshake state and EFM at the local end works in active mode. You
can run the display efm session { all | interface interface-type interface-number }
command to check whether the EFM status on both devices is detect. The display efm
{ all | interface interface-type interface-number } command can be used to check the EFM
modes of the interfaces at both ends of a link.
NOTE
Only one interface can send EFM test packets at one time.
Run:
system-view
The system view is displayed.
Run:
test-packet start interface interface-type interface-number [ -c count | -s
*
size ]
The device is configured to send test packets.
By default, the size of a test packet is 64 bytes and the number of sent packets is 5. During
test packet transmission, parameters of sent test packets cannot be changed.
The outbound interface of test packets should be the interface connected to the link to be
tested.
Press Ctrl+C to stop sending test packets.
Run:
system-view
The system view is displayed.
Run:
interface interface-type interface-number
The interface view is displayed.
Run:
efm loopback stop
Remote loopback is disabled on the interface.
If remote loopback is left enabled, the remote device keeps looping back service data,
causing a service interruption. To prevent this problem, a capability can be configured to
disable remote loopback automatically after a specified timeout interval. By default, the
timeout interval for remote loopback is 20 minutes. After the timeout interval expires, the
local device automatically sends a message to instruct the remote device to disable remote
loopback. To disable remote loopback manually, perform the preceding procedures.
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