SFP Operation 47

SFP Operation

Approved

1000BASE-X SFP

Transceivers

The following sections describes how to select and use an SFP transceiver in an SFP port.

The approved Gigabit Ethernet SFP transceivers include:

3CSFP91 SFP (1000BASE-SX)

3CSFP92 SFP (1000BASE-LX)

3CSFP93 SFP (1000BASE-T)

3CSFP97 SFP (1000BASE-LH70)

3Com may approve additional SFP transceivers following the publication of this document. The latest list of approved SFP transceivers for the Switch 5500 Family is available on the 3Com Web site, at:

http://www.3com.com

You must match SFP transceivers with the correct cable type as follows:

1000BASE-SX SFP transceiver

Use this transceiver to connect Gigabit Ethernet SFP ports on the switch directly to a multimode fiber-optic cable.

1000BASE-LX SFP transceiver

Use this transceiver to connect Gigabit Ethernet SFP ports on the switch directly to a single-mode fiber-optic cable or to a multimode fiber using a conditional launch cable.

1000BASE-LH70 SFP transceiver

Use this transceiver to connect Gigabit Ethernet SFP ports on the switch directly to a single-mode fiber-optic cable.

1000BASE-T SFP transceiver

This transceiver uses Category 5 copper cabling with RJ-45 connectors and supports segment lengths of up to 100 m (328 ft).

If the SFP transceiver is faulty, it will not operate within the switch. See “Solving Hardware Problems” on page 83.

3Com recommends that you only use Gigabit Ethernet SFPs supplied by 3Com. If the SFP transceiver is invalid it will not be recognized by the switch.

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3Com 5500-EI, 5500G-EI manual SFP Operation, Approved, Transceivers

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.