88CHAPTER 6: SWITCH MONITORING AND MAINTENANCE

Step 5: Select a right place to store the downloaded file as needed. For example, enter 2 at the prompt displayed in the last step to download the file into the Flash of the switch, press Enter, and the system will display the following information on the terminal:

Please Select File .

XMODEM downloading ...CCC

Step 6: Select [Transfer/Send File] in the terminal window. Click on <Browse> in the pop-up dialog box (shown as the following figure), select the desired application, and change the protocol used for downloading to XModem.

Figure 62 Send File dialog box

Step 7: Click Send. The Xmodem dialog box displays.

Step 8: After downloading the program successfully, the system begins to write the data into the Flash. The downloading operation will end upon a successful write operation. Then, the system will access the serial interface submenu again, and the user can make selection as needed. The details will not be covered here.

XMODEM downloading ...CCC download successfully! flash:/ s8500.app already exist,

delete it?(Y/N):y

Deleting file------------------------------------------------------

---------------------------------------------------------------Done

Free flash Space : 15862784 bytes

Writing flash------------------------------------------------------

-------------------------------------------------------Done

SERIAL SUBMENU

1.Download file to SDRAM through serial interface and boot

2.Download file to Flash through serial interface

3.Download file to HardDisk through serial interface

4.Modify serial interface boot parameter

0.Return to main menu Enter your choice(0-4):

Upgrading software through management Ethernet port (TFTP)

1Introduction to TFTP

Trivial file transfer protocol (TFTP) is well suited to the file transfer between a server and a client that do not need complex interaction.

In TFTP, the transmission is initiated by the client. When downloading a file, the client sends a read request packet to the TFTP server, receives the data packets from the server, and sends the ACK to the server. When uploading a file, the client

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3Com 8814, 8807, 8810 manual Upgrading software through management Ethernet port Tftp, Send File dialog box

8810, 8814, 8807 specifications

The 3Com 8814, 8810, and 8807 are renowned products from the networking giant 3Com, which played a significant role in the evolution of networking technology in the early 1990s. These devices were instrumental during a time when organizations were transitioning from traditional communication systems to more sophisticated networking solutions.

The 3Com 8814 is a multi-port networking hub designed for small to medium-sized businesses. One of its main features includes a 10Base-T Ethernet capability, allowing for fast and reliable connectivity among various devices within a local area network (LAN). The 8814 supports up to 14 connections, providing scalability for growing businesses. The hub’s ease of use is notable; it features a plug-and-play design, which aids in quick setup without requiring extensive configuration. This plug-and-play functionality, alongside its robust physical and electrical performance, made the 8814 an appealing choice for organizations looking to enhance their networking infrastructure without significant investment.

Moving on to the 3Com 8810, this device is labeled as an intelligent network switch and ushered in advancements in network management and performance. A critical element of the 8810 is its ability to support both 10/100Base-T Ethernet connections, effectively allowing mixed-speed environments. Its built-in management features, enabled by 3Com's networking technologies, offered users the ability to monitor traffic flow, manage bandwidth allocation, and configure network settings through a user-friendly interface. This switch also incorporated advanced features like VLAN support, increasing security and segmentation within networks, which proved invaluable for sophisticated networking environments.

Lastly, the 3Com 8807 represents a more versatile and high-performance switch option suited for larger networks. This model features a stackable design that allows for a broader range of scalability and redundancy. It supports both fast Ethernet and Gigabit Ethernet, ensuring that organizations can expand their network speeds as needed. The 8807 includes features for enhanced fault tolerance and link aggregation, which bolsters reliability and performance under heavy traffic loads. Its integration with 3Com's Network Management Software provided administrators with unprecedented control over their networks, empowering them to optimize performance and troubleshoot issues effectively.

Overall, the 3Com 8814, 8810, and 8807 exemplified the company's commitment to innovation in networking technology, providing businesses with the tools necessary to develop efficient, scalable, and reliable network infrastructures. Each of these devices played a crucial role in shaping the landscape of networking, emphasizing ease of use, management capabilities, and performance.