Dual-Purpose Uplink Ports; Connecting Interfaces; Using Interface Configuration Mode - Cisco IE 3000 Software Configuration Manual

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Dual-Purpose Uplink Ports

Some IE 3000 switches support dual-purpose uplink ports. Each uplink port is considered as a single

interface with dual front ends—an RJ-45 connector and a small form-factor pluggable (SFP) module

connector. The dual front ends are not redundant interfaces, and the switch activates only one connector

of the pair.

By default, the switch dynamically selects the interface type that first links up. However, you can use the

media-type interface configuration command to manually select the RJ-45 connector or the SFP module

connector. For information about configuring speed and duplex settings for a dual-purpose uplink, see

Each uplink port has two LEDs: one shows the status of the RJ-45 port, and one shows the status of the

SFP module port. The port LED is on for whichever connector is active. For more information about the

LEDs, see the hardware installation guide.

Devices within a single VLAN can communicate directly through any switch. Ports in different VLANs

cannot exchange data without going through a routing device. In the configuration shown in

when Host A in VLAN 20 sends data to Host B in VLAN 30, the data must go from Host A to the switch,

to the router, back to the switch, and then to Host B.

Using Interface Configuration Mode

The switch supports these interface types:

Cisco IE 3000 Switch Software Configuration Guide

"Setting the Interface Speed and Duplex Parameters" section on page

Connecting VLANs with Layer 2 Switches

Physical ports—switch ports

VLANs—switch virtual interfaces

Port channels—EtherChannel interfaces

Cisco router

Configuring Interface Characteristics

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