Unit Numbering within the Fabric

79

Adding and removing units from the Fabric does not cause any renumbering to occur and the Fabric will continue to work normally. Renumbering only occurs when the Fabric is next power cycled if the units are configured to auto-number.

The unit LEDs will display the unit number in the Fabric, from 1 to 8.

Figure 31 Resilient Fabric example (using 4 Switch 5500G-EI units)

 

 

 

 

 

 

 

 

 

 

 

 

 

Up Connector (Blue Label)

DC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

Caution:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This device

 

 

 

 

 

 

 

 

 

 

 

 

 

Do

 

has

 

 

 

 

 

 

 

 

 

 

 

 

 

disconnect all

 

 

 

 

 

 

 

 

 

Down Connector (Yellow Label)

 

 

 

 

 

power more than

one

 

 

 

 

 

 

 

 

 

 

 

inputs to

 

power

 

 

 

 

 

 

 

 

 

 

 

 

 

 

power off thisinput.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

device.

 

 

 

 

 

DC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

Caution:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This device

 

 

 

 

 

 

 

 

 

 

 

 

 

Do

 

has

 

 

 

 

 

 

 

 

 

 

 

 

 

disconnect all

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

power more

than

one

 

 

 

STK

 

 

 

 

 

 

 

 

 

 

inputs to

 

 

 

 

Stacking:

 

 

 

 

 

 

 

 

 

 

 

 

power power

input.

Green=OK,

 

 

 

 

 

 

 

 

 

 

 

 

 

off

this

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

device.

 

Flashing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STK

 

 

DC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yellow=Link

Fault,

 

ON

Caution:

 

 

 

 

 

 

 

 

 

 

 

 

 

Yellow

 

Do

 

This device

has

 

 

 

 

 

 

 

 

 

 

Fault

 

 

disconnect all

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

power more than

one

 

 

 

STK

 

 

 

 

 

 

 

 

 

 

inputs to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

power power

 

Stacking:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

off thisinput.

 

Green=OK,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

device.

 

Flashing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

Caution:

 

 

 

 

 

 

 

 

 

 

 

 

 

Fault,

 

 

This

 

 

 

 

 

 

 

 

 

 

 

 

Yellow

 

Do

 

device

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

has

 

 

 

 

 

 

 

 

 

 

 

 

 

disconnect all

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

power more than

one power

 

 

 

 

 

 

 

 

 

 

 

 

inputs to

 

 

STK

 

 

 

 

 

 

 

 

 

 

 

 

power off

thisinput.

Stacking:

Green=OK,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

device.

 

Flashing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fault,

Yellow

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stacking:

Green=OK,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Flashing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STK

 

 

 

Stacking Port LED

 

 

 

 

 

 

 

 

 

 

Yellow=Link

Fault,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yellow

 

 

 

 

 

 

 

 

 

 

 

 

 

Fault

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 32 Resilient Fabric example (using 4 Switch 5500-EI units)

If you are having problems, refer to “Solving Fabric Formation Problems” on page 86.

Page 79
Image 79
3Com 5500-EI manual Resilient Fabric example using 4 Switch 5500G-EI units

5500G-EI, 5500-EI specifications

The 3Com 5500-EI and 5500G-EI series are advanced Ethernet switches designed for enterprise networks, catering to the growing demand for high-performance, secure, and scalable networking solutions. These switches are particularly suited for large organizations that require robust management capabilities and high-density connectivity.

One of the key features of the 5500-EI and 5500G-EI models is their modular architecture, which allows businesses to tailor the switch configuration to their specific needs. With options for various interface modules, including Gigabit Ethernet and PoE (Power over Ethernet), these switches can support diverse networking requirements and facilitate the gradual expansion of the network infrastructure.

The Series offers advanced Layer 2 and Layer 3 switching capabilities. Layer 2 features include VLAN tagging, trunking, and Spanning Tree Protocol (STP) to ensure efficient traffic management and network segmentation. On the Layer 3 front, the switches support static routing, RIP, and OSPF, enabling dynamic routing protocols for better traffic flow and load balancing. These features together enhance the performance and reliability of enterprise applications.

Security is another vital aspect of the 3Com 5500-EI and 5500G-EI series. The switches come equipped with robust security features to protect sensitive data and maintain compliance. These include MAC address filtering, access control lists (ACLs), and support for 802.1X authentication. Additionally, the devices support secure management protocols like SNMP v3, which enhances the security of management communications.

The 5500G-EI model stands out with its high-density port offerings, supporting up to 48 ports in a single switch, with an option for stacking to create a unified management platform across multiple switches. This flexibility allows organizations to leverage their existing infrastructure while scaling seamlessly in response to growing demands.

Another notable characteristic is the built-in IPv6 support, which positions the 3Com 5500-EI and 5500G-EI models favorably for future-proofing enterprise networks as the transition to IPv6 continues. This feature ensures that organizations can maintain connectivity as devices increasingly adopt the newer protocol.

In conclusion, the 3Com 5500-EI and 5500G-EI series offer a comprehensive suite of features and technologies designed for high-performance enterprise networking. With modularity, robust Layer 2 and Layer 3 capabilities, enhanced security measures, and a focus on scalability, these switches provide a solid foundation for modern corporate networks, accommodating future growth and technological advancements.