Command Line Reference Guide

Interfaces | 457
Example
Figure 15-8. interface null Command Example
Usage
Information
You cannot delete the Null interface. The only configuration command possible in a Null interface is ip
unreachables.
Related
Commands
interface range
c e s
This command permits configuration of a range of interfaces to which subsequent commands are
applied (bulk configuration). Using the interface range command, identical commands can be
entered for a range of interface.
Syntax
interface range interface , interface , ...
Parameters
Defaults
This command has no default behavior or values.
Command Modes
CONFIGURATION
Version 7.5.1.0 Introduced on C-Series
Version 6.4.1.0 Introduced
Force10(conf)#interface null 0
Force10(conf-if-nu-0)#
interface Configure a physical interface.
interface loopback Configure a Loopback interface.
interface port-channel Configure a port channel.
interface vlan Configure a VLAN.
ip unreachables Enable generation of ICMP unreachable messages.
interface,
interface, ...
Enter the keyword interface range and one of the interfaces — slot/port,
port-channel or VLAN number. Select the range of interfaces for bulk configuration.
You can enter up to six comma separated ranges—spaces are not required between the
commas. Comma-separated ranges can include VLANs, port-channels and physical
interfaces.
Slot/Port information must contain a space before and after the dash. For example,
interface range gigabitethernet 0/1 - 5 is valid; interface range
gigabitethernet 0/1-5
is not valid.
• For a 1-Gigabit Ethernet interface, enter the keyword
GigabitEthernet followed
by the slot/port information.
• For a port channel interface, enter the keyword
port-channel followed by a
number:
C-Series and S-Series Range: 1-128
E-Series Range: 1 to 255 for TeraScale and ExaScale
• For a SONET interface, enter the keyword
sonet followed by the slot/port
information.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet
followed by the slot/port information.
• For a VLAN, enter the keyword
vlan followed by a number from 1 to 4094.