Cisco Gigabit Ethernet Switch Module for HP p-Class BladeSystem Software Configuration Guide

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Chapter 7 Configuring Interface Characteristics

Using Interface Configuration Mode

Connecting Interfaces

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 Figure 7-1,

when Blade Server A in VLAN 20 sends data to Blade Server B in VLAN 30, the data must go from

Blade Server A to the switch, to the router, back to the switch, and then to Blade Server B.

Figure 7-1 Connecting VLANs with Layer 2 Switches

Using Interface Configuration Mode

The switch supports these interface types:

• Physical ports—switch ports

• VLANs—switch virtual interfaces

• Port channels—EtherChannel interfaces

You can also configure a range of interfaces (see the “Configuring a Range of Interfaces” section on

page 7-6).

To configure a physical interface (port), specify the interface type, module number, and switch port number,

and enter interface configuration mode.

• Type—Gigabit Ethernet (gigabitethernet or gi) for 10/100/1000 Mb/s Ethernet port or small

form-factor pluggable (SFP) module Gigabit Ethernet interfaces.

• Module number—The module or slot number on the switch (always 0 on theswitch).

You can identify physical interfaces by physically checking the interface location on the switch. You

can also use the show privileged EXEC commands to display information about a specific interface or

all the interfaces on the switch. The remainder of this chapter primarily provides physical interface

configuration procedures.

Blade

Server A

Blade Switch

Cisco router

VLAN 20 VLAN 30

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Blade

Server B