White Papers

Table Of Contents
Version Description
9.10(0.0) Introduced on the S3148.
9.8(2.0) Introduced on the S3100 series.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.1.1.0 Introduced on the E-Series.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
E-Series legacy
command
Usage
Information
The shutdown command marks a physical interface as unavailable for traffic. To discover if an interface
is disabled, use the show ip interface brief command. Disabled interfaces are listed as down.
Disabling a VLAN or a port channel causes different behavior. When a VLAN is disabled, the Layer 3
functions within that VLAN are disabled. Layer 2 traffic continues to flow. Entering the shutdown
command on a port channel disables all traffic on the port channel and the individual interfaces within the
port channel. To enable a port channel, enter no shutdown on the port channel interface and at least
one interface within that port channel.
The shutdown and description commands are the only commands that you can configure on an
interface that is a member of a port channel.
Related
Commands
interface port-channel create a port channel interface.
interface vlan create a VLAN.
show ip interface display the interface routing status. Add the keyword brief to display a table of
interfaces and their status.
speed (for 10/100/1000/10000 interfaces)
Set the speed for 10/100/1000/10000 interfaces. Set both sides of a link to the same speed (10/100/1000/10000) or to auto or
the link may not come up.
Syntax
speed {10 | 100 | 1000 | 10000 | auto}
To return to the default setting, use the no speed {10 | 100 | 1000 | 10000} command.
Parameters
10 Enter the keyword 10 to set the interfaces speed to 10 Mb/s.
NOTE: This interface speed is not supported on the LC-EH-GE-50P or the
LC-EJ-GE-50P card. If the command is entered for these interfaces, an error
message appears.
100 Enter the keyword 100 to set the interfaces speed to 10/100 Mb/s.
NOTE: When this setting is enabled, only 100Base-FX optics are supported on
the LC-EH-GE-50P or the LC-EJ-GE-50P card.
686 Interfaces