Version 8.1.1.0 Introduced on the E-Series ExaScale.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
Version 6.4.1.0 Introduced
Usage
Information
You cannot delete the Null interface. The only configuration command possible in a Null
interface is ip unreachables.
Example
FTOS(conf)#interface null 0
FTOS(conf-if-nu-0)#
Related
Commands
interface – configures a physical interface.
interface loopback – configures a Loopback interface.
interface port-channel – configures a port channel.
interface vlan – configures a VLAN.
ip unreachables – enables generation of internet control message protocol (ICMP)
unreachable messages.
interface range
This command permits configuration of a range of interfaces to which subsequent commands are applied (bulk
configuration). Using the interface range command, you can enter identical commands for a range of interface.
C-Series, E-Series, S-Series, Z-Series
Syntax
interface range interface, interface,...
Parameters
interface,
interface,...
Enter the keywords 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 keywords port-
channel
followed by a number. For the C-Series and S-
Series, the range is 1 to 128. For the E-Series, the range is 1 to
255 for TeraScale and 1 to 512 for ExaScale.
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