B Commands
bandwidth (interface)
To set the inherited and received bandwidth values for an interface, use the bandwidth command. To restore the default values, use the no form of this command.
bandwidth { kbps | inherit [kbps] }
no bandwidth { kbps | inherit [kbps] }
Syntax Description
|
kbps |
Informational bandwidth in kilobits per second. Valid values are from 1 to 10000000. |
|
inherit |
(Optional) Specifies that the bandwidth be inherited from the parent interface. |
Command Default
1000000 kbps
Command Modes
Interface configuration mode
Subinterface configuration mode
Command History
|
Release |
Modification |
|---|---|
|
4.0(0)N1(1a) |
This command was introduced. |
|
5.0(3)N1(1) |
Support for Layer 3 interfaces was added. |
Usage Guidelines
The bandwidth command sets an informational parameter to communicate only the current bandwidth to the higher-level protocols; you cannot adjust the actual bandwidth of an interface using this command.
The bandwidth inherit command controls how a subinterface inherits the bandwidth of its main interface.
The no bandwidth inherit command enables all subinterfaces to inherit the default bandwidth of the main interface, regardless of the configured bandwidth. If a bandwidth is not configured on a subinterface, and you use the bandwidth inherit command, all subinterfaces will inherit the current bandwidth of the main interface. If you configure a new bandwidth on the main interface, all subinterfaces will use this new value.
If you do not configure a bandwidth on the subinterface and you configure the bandwidth inherit command on the main interface, the subinterfaces will inherit the specified bandwidth.
In all cases, if an interface has an explicit bandwidth setting configured, then that interface will use that setting, regardless of whether the bandwidth inheritance setting is in effect.
Examples
This example shows how to configure the badwidth for a Layer 2 interface:
switch(config)# interface ethernet 1/5 switch(config-if)# bandwidth 1000 switch(config-if)#
This example shows how to configure subinterfaces to inherit the bandwidth from the parent routed interface:
switch(config)# interface ethernet 1/5 switch(config-if)# no switchport switch(config-if)# bandwidth inherit 30000 switch(config-if)# interface ethernet 1/1.1 switch(config-subif)#
Related Commands
|
Command |
Description |
|---|---|
|
show interface |
Displays the interface configuration information. |
beacon (interface)
To turn on the beacon LED for a port of an interface, use the beacon command. To turn off the beacon LED for the interface, use the no form of this command.
beacon
no beacon
Syntax Description
This command has no arguments or keywords.
Command Default
None
Command Modes
Interface configuration mode
Command History
|
Release |
Modification |
|---|---|
|
4.0(1a)N2(1) 5.1(3)N1(1) |
This command was introduced. |
Usage Guidelines
Use the beacon command to toggle the port LED of an interface to easily identify each time a beacon is sent to check for pending packets on the interface.
Examples
This example shows how to turn on the locator beacon LED for a specific interface:
switch(config)# interface ethernet 2/1 switch(config-if)# beacon
This example shows how to turn off the locator beacon LED for a specific interface:
switch(config)# interface ethernet 2/1 switch(config-if)# no beacon
Related Commands
|
Command |
Description |
|---|---|
|
show interface |
Displays configuration information for an interface. |
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