Installation and User Manual
EtherHaul
1200™
EH-INST-02, Issue 4.0
Page 161
For detailed explanations of all Ethernet statistics, refer to
Viewing Ethernet Statistics
on page 127.
10.5
EtherHaul System Loopbacks
The EtherHaul radio uses Ethernet and RF loopbacks designed to enable fault isolation
and Ethernet service performance testing.
Ethernet Loopback –
Internal and external loopbacks are performed on the
interface, testing the local ODU, the radio link, and the remote ODU.
RF (Radio) Loopback –
Internal loopback is performed on the ODU’s RF
output.
Note:
After activating Loopback, it is important to
clear all RF and Ethernet statistics
in
order to receive the most accurate results for analysis.
Use system alarms as well as statistic displays to determine if Loopback testing has
passed or failed.
10.5.1 Loopback Diagrams
10.5.1.1
System Loopback Points
Figure
10-1 EtherHaul 1200 System Loopback Points
10.5.1.2
Ethernet External Line Loopback Point
The Ethernet traffic from the customer’s end-equipment or Ethernet analyzer is looped
on the Ethernet interface (Eth1 or Eth2), enabling testing of the connection (cable/fiber)
and the interface between end-equipment and the ODU.
