3Com 10014298 manual Configuring the File Transmission Mode, Downloading Files with Tftp

Managing the MAC Address Table 249

■Downloading Files with TFTP

Configuring the File Transmission Mode

TFTP transmits files in two modes; binary mode for program files and ASCII mode for text files. Use the following commands to configure the file transmission mode.

Perform the following configuration in system view.

Table 268 Configuring the File Transmission Mode

Operation	Command
Configure the file transmission mode	tftp { ascii binary }

By default, TFTP transmits files in binary mode.

Downloading Files with TFTP

To download a file, the client sends a request to the TFTP server and receives data from it, then sends acknowledgement to it. Use the following commands to download files with TFTP.

Perform the following configuration in system view.

Table 269 Downloading Files with TFTP

Operation	Command
Download files with TFTP	tftp tftp-server get source-file [
	dest-file ]

Uploading Files with TFTP

To upload a file, the client sends a request to the TFTP server and transmits data to it, then receives the acknowledgement from it. Use the following commands to upload files.

Perform the following configuration in system view.

Table 270 Uploading Files with TFTP

Operation	Command
Upload files with TFTP	tftp tftp-server put source-file
	[ dest-file ]

Managing the MAC The Switch 7750 maintains a MAC address table for fast forwarding of packets. A

Address Table table entry includes the MAC address of a device and the port ID of the switch connected to it. The switch learns dynamic entries when it receives a data frame from a port (assumed as port A). The switch analyzes the source MAC address and considers that the packets destined for the source MAC address can be forwarded through port A. If the MAC address table contains the MAC_SOURCE, the switch updates the corresponding entry, otherwise, it adds the new MAC address (and the corresponding forwarding port) as a new entry to the table.

The system forwards the packets whose destination addresses can be found in the MAC address table. The network device responds after receiving a broadcast packet and the response contains the MAC address of the device, which the