Command Line Reference Guide

554 | Interfaces
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Defaults
Not configured; number = 0
Command Modes
CONFIGURATION
Command
History
Example FTOS(conf)#interface null 0
FTOS(conf-if-nu-0)#
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.
Version 8.1.1.0 Introduced on E-Series ExaScale
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
Version 6.4.1.0 Introduced
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 1 to 512 for 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.