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Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.4(0.0) Supported on the FN I/O Aggregator.
8.3.17.0 Supported on the M I/O Aggregator.
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 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, you must 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
vlan tagged —Test the condition of copper cables on 100/1000/10G Base-T modules.
interface vlan — Creates a VLAN.
show ip interface — Displays the interface routing status. Add the keyword brief to display a table of
interfaces and their status.
speed (for 1000/10000/auto interfaces)
Set the speed for 1000/10000 Base-T Ethernet interfaces. Set both sides of a link to the same speed (1000/10000) or to auto
or the link may not come up.
Syntax
speed {1000 | 10000 | auto}
To return to the default setting, use the no speed {1000 | 10000 | auto} command.
Parameters
1000 Enter the keyword 1000 to set the interface’s speed to 1000 Mb/s.
10000 Enter the keyword 10000 to set the interface’s speed to 10000 Mb/s. Auto-
negotiation is enabled. For more information, refer to negotiation auto.
auto Enter the keyword auto to set the interface to auto-negotiate its speed. Auto-
negotiation is enabled. For more information, refer to negotiation auto.
Defaults auto
Command Modes INTERFACE
Supported Modes Full–Switch
Command
History
Version Description
9.10(0.0) Added support for fanned–out 1 Gigabit SFP port.
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
This command is found on the 1000/10000 Base-T Ethernet interfaces.
When you enable auto, the system performs an automatic discovery to determine the optics installed
and configure the appropriate speed.
When you configure a speed for the 1000/10000 interface, confirm the negotiation auto command
setting. Both sides of the link must have auto-negotiation either enabled or disabled. For speed settings
of 1000 or auto, the software sets the link to auto-negotiation and you cannot change that setting.
Interfaces 515