18CHAPTER 1: INTRODUCING THE SWITCH 5500 FAMILY

Unit LED The Unit LED is a seven segment display visible on the front of the Switch. The Unit LED indicates the unit number in a fabric, POST test ID, and software upgrade information. In the unlikely event of a hardware fault occurring, you can use the Unit LED to help diagnose the problem. For information on using the Unit LED for problem solving, see “Solving Problems Indicated by LEDs” on page 82.

LEDs Table 5 lists the LEDs visible on the front of the Switch, and how to read their status according to color. For information on using the LEDs for problem solving, see “Checking for Correct Operation of LEDs” on page 43.

Table 5

LED behavior

 

 

 

 

LED

Color

Indicates

 

10/100/1000BASE-TX Port LEDs

Speed

Green

A high speed (1000 Mbps) link is present, blinking off

 

 

for every packet received or transmitted.

 

Yellow

A low speed (10/100 Mbps) link is present, blinking

 

 

off for every packet received or transmitted.

 

Yellow flashing

The port has failed POST.

 

Off

No link is present.

Duplex

Green

Full duplex, blinking off for every packet received or

 

 

transmitted.

 

Yellow

Half duplex, blinking off for every packet received or

 

 

transmitted.

 

Yellow flashing

The port has failed POST.

 

Off

No link is present.

PoE

Green

Power is being delivered to the port.

 

Green flashing

Port power has exceeded limit or is unable to supply

 

 

power due to unit being over budget.

 

Yellow

PoE error, no power supplied on port.

 

Yellow flashing

The port has failed post.

 

Off

No power is being delivered.

10/100BASE-T/TX Ports LEDS

Speed

Green

A high speed (100 Mbps) link is present, blinking off

 

 

for every packet received or transmitted.

 

Yellow

A low speed (10 Mbps) link is present, blinking off for

 

 

every packet received or transmitted.

 

Yellow flashing

The port has failed POST.

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3Com 5500G-EI, 5500-EI manual LED behavior, Color Indicates 10/100/1000BASE-TX Port LEDs, 10/100BASE-T/TX Ports Leds

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.