84CHAPTER 6: SWITCH MONITORING AND MAINTENANCE

Removing and Cleaning the Chassis’s Air Filter

1Unscrew the screws at the top and bottom of the air filter with a flathead screwdriver.

2Hold the air filter at the left-rear by its upper and lower edges, pull part of it out of the chassis, put one hand underneath the air filter to hold it, and pull it out slowly along the guides.

c CAUTION: Because the air filter is rather long, you should hold its front end with one hand, and bear its weight by putting another hand underneath it when sliding the air filter out of the chassis.

3Rather than taking the air filter mesh out, directly wash the air filter after removing it from the chassis, allow it to air dry, and insert it back into the chassis.

Installing the Chassis’s Air Filter

1Hold the front end of the air filter with one hand and put the other hand underneath it, align it with the guides, and slide it into the chassis along the guides.

2Fix the air filter by fastening the screws at the top and bottom of the air filter with a flathead screwdriver.

c CAUTION: As the air filter is rather long, you should hold its front end with one hand, and bear its weight by putting another hand underneath it when sliding the air filter into the chassis.

Replacing a Module The Switch 8800’s fabric, I/O modules, and application modules are similar in structure and you can install and remove them in the same way. This section describes the general procedures for removing and installing these modules.

The Switch 8800 Family modules are hot-swappable.

Required tools

■ESD-preventive wrist strap

■Screwdriver

Removing a Module

To remove a module:

1Wear the ESD-preventive wrist strap and unscrew the screws on the module with a flathead screwdriver.

2Hold the ejector levers on the module with both hands and press them outward to separate the module’s locking pin from the backplane.

3Gently pull the module out of the slot along the guides.

Figure 60 Removing a Module

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3Com 8807, 8814, 8810 Removing and Cleaning the Chassis’s Air Filter, Installing the Chassis’s Air Filter, Required tools
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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.
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