Specifications

Installation and Configuration Note for the Catalyst 4500 Series Supervisor Engine II-Plus TS

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Configuring Your Supervisor Engine

For information and commands to configure your supervisor engine, refer to the Software Configuration

Guide for your switch.

SFP Guidelines

SFP modules are hot-pluggable and field-replaceable, and you can insert them into the eight SFP module

slots on the front panel of the Supervisor Engine II+TS. You can use the SFP modules for connections

to other network devices.

You can use any combination of supported SFP modules. Use only Cisco SFP modules on your Cisco

device. Each SFP module has an internal serial EEPROM that is encoded with security information. This

encoding provides a way for Cisco to identify and validate that the SFP module meets the requirements

for the device.

The following SFP media types are supported:

• 1000BASE-SX (GLC-SX-MM)

• 1000BASE-LX/LH (GLC-LH-SM)

• 1000BASE-ZX (GLC-ZX-SM)

• 1000BASE-T (GLC-T)

• CWDM (CWDM-SFP-xxxx)

Cisco 1000BASE-LX/LH interfaces fully comply with the IEEE 802.3z 1000BASE-LX standard.

However, their higher optical quality allows them to reach 6.2 miles (10 km) over SMF cable instead of

the 3.1 miles (5 km) specified in the standard.

If an LX/LH SFP designed for operation on an SMF cable is directly coupled to an MMF cable, an effect

known as Differential Mode Delay (DMD) might occur. See the Catalyst 4500 Series Module

Installation Guide for more information.

This section describes the following topics:

• Fiber-Optic SFP Modules, page 17

• 1000BASE-T SFP Modules, page 18

• CWDM SFPs, page 18