Huawei NetEngine80E Configuration Manual - Reliability page 692

HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
Interface
----------------------------------------------------------------------
GigabitEthernet1/0/2
Step 2 Configure remote loopback.
# Configure remote loopback on CE1.
[CE1] interface gigabitethernet 1/0/2
[CE1-GigabitEthernet1/0/2] efm loopback start
[CE1-GigabitEthernet1/0/2] quit
Verify the configuration.
After configuring remote loopback, run the display efm session { all | interface interface-
type interface-num } command on CE1. The command output shows that the EFM status is
Loopback (control) on GE 2/0/1.
[CE1] display efm session interface gigabitethernet 1/0/2
----------------------------------------------------------------------
Run the display efm session { all | interface interface-type interface-num } command on CE4.
The command output shows that the EFM status is Loopback (be controlled) on GE 2/0/1.
[CE4] display efm session interface gigabitethernet 2/0/1
Interface
----------------------------------------------------------------------
GigabitEthernet1/0/0
Step 3 Configure CE1 to send test packets to CE4.
[CE1] test-packet start interface gigabitethernet 1/0/2
Step 4 Check returned test packets on CE1.
[CE1] display test-packet result
TestResult
--------------------------------------------------------
PacketsSend
PacketsReceive :
PacketsLost
BytesSend
BytesReceive
BytesLost
StartTime
EndTime
Link quality can be evaluated based on data in the preceding command output.
Step 5 Disable remote loopback.
[CE1] interface gigabitethernet 1/0/2
[CE1-GigabitEthernet1/0/2] efm loopback stop
[CE1-GigabitEthernet1/0/2] quit
Step 6 Verify the configuration.
After disabling remote loopback, run the display efm session { all | interface interface-type
interface-num } command on CE1 or CE4. The command output shows that the EFM status is
Detect or Discovery on the interfaces at both ends of the link. For example:
Issue 02 (2014-09-30)
Interface
GigabitEthernet1/0/2
Value
: 0
0
: 0
: 0
: 0
: 0
: 00-00-0000 00:00:00 UTC+00:00
: 00-00-0000 00:00:00 UTC+00:00
NOTE
The default timeout period of remote loopback is 20 minutes. After the timeout period expires, remote
loopback is automatically disabled. To disable remote loopback, perform the preceding step.
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EFM State
detect
EFM State
loopback (control)
EFM State
loopback (be controlled)
8 Ethernet OAM Configuration
Loopback Timeout
--
Loopback Timeout
20
Loopback Timeout
--
675