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IM AQ1300-01EN
Manual T
est Settings (Manual)
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App
Index
6.6 Configuring a Loopback Test
Procedure
Loopback Setup Screen
Follow the procedure in section 6.4 to display the Loopback Setup screen.
Press the
Detail Setup
soft key to display the following screen.
Set the loopback target frames
(Source Address, All Frames).
Select this check box to also switch the
L4 port number.
This setting is valid when the test layer is
L3-IPv4 or L3-IPv6.
Explanation
Loopback Target Frame
Set the loopback target frames.
• Source Address: Only frames from the source address are looped back.
• All Frames:
All frames are looped back.
Swap L4 Port#(TCP/UDP)
Select whether or not to switch the L4 port number (TCP/UDP Dst Port/Src Port) when the test layer
is L3-IPv4 or L3-IPv6 and the MAC or IP address changes between DA and SA.
• Selected: The L4 port number is switched.
• Cleared: The L4 port number is not switched.
Switched Items for Each Layer
Switched Item
L2 Test
L3-IPv4/L3-IPv6 Test
Swap L4 Port#(TCP/UDP)
Cleared
Selected
MAC address DA/SA
Yes
Yes
Yes
IP address DA/SA
No
Yes
Yes
TCP/UDP Dst/Src Port
No
No
Yes
Note
When the test layer is L3-IPv4 or L3-IPv6, if you set the loopback target frame to All Frames, loopback
processing is carried out under the assumption that the received frames have a frame structure that matches
that of the test layer.
Be careful when you use the AQ1300/AQ1301 in an environment where many different types of frame
structures are mixed together.