Reference Guide

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 — creates a port channel interface.
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 10/100/1000 interfaces)
Set the speed for 10/100/1000 Base-T Ethernet interfaces. Set both sides of a link to the same speed (10/100/1000) or to
auto or the link may not come up.
S4820T
Syntax
speed {10 | 100 | 1000 | auto}
To return to the default setting, use the no speed {10 | 100 | 1000} command.
Parameters
10 Enter the keyword 10 to set the interface’s 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 interface’s 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.
1000 Enter the keyword 1000 to set the interface’s speed to 1000 Mb/s.
Auto-negotiation is enabled. For more information, refer to
negotiation auto.
NOTE: When this setting is enabled, only 100oBase-FX optics are
supported on the LC-EH-GE-50P or the LC-EJ-GE-50P card.
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.
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