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2.3.2. Copper port test
As shown in Figure 2-7, power up the device, connect any two electrical
ports to the network ports of two test computers through a direct-connected
network cable, and send Ping commands to each other. Both parties can
correctly ping each other without packet loss. It means that the hardware of the
tested two copper ports is working normally.
Figure 2-7 Schematic diagram of electrical port test
2.3.3. Fiber port test
Combine the two devices into an optical fiber chain network as shown in
Figure 2-8. Any electrical port of each device is connected to the test computer
through a direct-connected network cable, and PING commands are sent to
each other, and both parties can correctly PING to each other without packet
loss. At the same time, the LINK/ACT light corresponding to the optical port
should be on. It means that the hardware of the two fiber ports under test is
working normally, and the other optical ports are tested in the same way.
Figure 2-8 Schematic diagram of optical port test
PING command example:
The IP address of test computer 1 is 192.168.0.10, and the IP address of
test computer 2 is 192.168.0.11. First, make sure that the first item "Allow
incoming echo requests" in the local connection ICMP settings of the firewall of
the two machines is checked. The operation method is to open the advanced
page in the windows firewall settings and set the ICMP protocol, as shown in
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