User manual

Page 240
When testing a link from one side (Local), External Line loopback should be applied on the
Local unit.
Loopback can be applied separately for ETH1 and ETH2.
To set Ethernet External Loopback
Loopback can be set with or without MAC Address swap.
Set the loopback mode to external for the desired Ethernet port and set the loopback-
timeout in seconds:
set eth eth1 loopback-timeout 300
set eth eth1 loopback-mode external-mac-swap
To clear the Loopback
set eth eth1 loopback-mode disable
7.6.1.3 RF (Eth0) External Loopback Points
The Ethernet traffic from customer’s end-equipment or Ethernet analyzer is looped in the
Ethernet Bridge RF output (Eth0) towards the modem’s input, enabling testing of the
connection (cable/Fiber), the interface between end-equipment and the ODU, the Local
ODU, the radio link and the Remote ODU.
To set RF Loopback
Loopback can be set with or without MAC Address swap.
Set the loopback mode to external for the RF (Eth0) port and set the loopback-timeout in
seconds:
set eth eth0 loopback-timeout 300
set eth eth0 loopback-mode external-mac-swap
To clear the Loopback
set eth eth1 loopback-mode disable
7.6.1.4 Ethernet Internal Line Loopback Points
Internal External loop returns the received frames to the radio side, thus allowing testing
Ethernet traffic across the link.
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