Specifications

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.3.0XO(15.1(1)XO)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
passive-interface
passive-interf ace
To disable sending rout ing updat es on an inte rface, us e the passive-interface command. To reenable the
sending of routing updates, use the no form of this command.
passive-interface [[default] {interface-type interface-number}] | {range interface-type
interface-number-interface-type interface-number}
no passive-interface [[default] {interface-type interface-number}] | {range interface-type
interface-number-interface-type interface-number}
Syntax Description
Defaults Rou ting updates a re se nt on th e inte rface.
Command Modes Router c onfiguratio n mode
Usage Guidelines You can use the passive -int erfa ce range command on the following interfaces: FastEthernet,
GigabitEthernet, VLAN, Loopback, Port-channe l, 10-GigabitEthe rnet, and Tunnel. When you use the
passive-interface range command on a VLAN interface, the interface should be the existing VLAN
SVIs. To display the VLAN SVIs, enter the show running config command. The VLANs that are not
displayed cannot be used in the passiv e-int erfac e ran ge command.
The values that are entered with the passive-interface range command are applied to all the existing
VLAN SVIs.
Before you can use a macro, you must define a range using the define interface-range command.
All configuration changes that ar e made to a port range through the pas sive-i nterf ace r ange command
are retained in the running-configuration as individual passive-interface commands.
You can enter the range in two ways:
• Specifying u p to five interface ranges
• Specifying a previously defined macro
You can either specify the interfaces or the name of an interface-range macro. An interface range must
consist of the same interface type, and the interfaces within a range cannot span across the modules.
You can define up to five interface ranges on a single command; separate each range with a comma:
interface range gigabitethernet 5/1-20, gigabitethernet4/5-20.
Use this format when entering the port-range:
• interface-type {mod}/{first-port} - {last-port}
default (Optional) All interfaces become passive.
interface-type Specifies the interface type.
interface-number Specifies the interface number.
range Specifies the range of subinterfaces being configured; see the “Usage
Guidelines” section.