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DES-3550 Fast Ethernet Layer 2 Switch
Figure 9- 4. Upload Log to TFTP Server window
Enter the IP address of the TFTP server and the path and filename for the history log on the TFTP server.
Click Start to record the IP address of the TFTP server and to initiate the file transfer.
Ping Test
Ping is a small program that sends ICMP Echo packets to the IP address you specify. The destination node then responds to
or "echoes" the packets sent from the Switch. This is very useful to verify connectivity between the Switch and other nodes
on the network.
Figure 9- 5. Ping Test
The user may use Infinite times radio button, in the Repeat Pinging for: field, which will tell the ping program to keep
sending ICMP Echo packets to the specified IP address until the program is stopped. The user may opt to choose a specific
number of times to ping the Target IP Address by clicking its radio button and entering a number between 1 and 255.
Click Start to initiate the Ping program.
Save Changes
The DES-3550 has two levels of memory; normal RAM and non-volatile or NV-RAM. Configuration changes are made
effective by clicking the Apply button. When this is done, the settings will be immediately applied to the switching
software in RAM, and will immediately take effect.
Some settings, though, require you to restart the Switch before they will take effect. Restarting the Switch erases all
settings in RAM and reloads the stored settings from the NV-RAM. Thus, it is necessary to save all setting changes to NV-
RAM before rebooting the Switch.
To retain any configuration changes permanently, click the Save Changes link in the Maintenance folder. The following
screen will appear:
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