Cisco Cisco ASR 5000
Ethernet Port Configuration Mode Commands
▀ medium
▄ Command Line Interface Reference, StarOS Release 18
3772
medium
Configures the port speed and communication mode. (ASR 5000 only)
Product
All
Privilege
Security Administrator, Administrator
Mode
Exec > Global Configuration > Ethernet Port Configuration
configure > port ethernet slot_number/port_number
Entering the above command sequence results in the following prompt:
[local]host_name(config-port-slot_number/port_number)#
Syntax
medium { auto | speed { 10 | 100 | 1000 | 10000 } duplex { full | half } }
{ auto | speed { 10 | 100 | 1000 | 10000 } duplex { full | half } }
Default:
auto
Optionally sets the speed of the interface and the communication mode.
auto
: configures the interface to auto negotiate the interface speed.
speed { 10 | 100 | 1000 | 10000 }
: specifies the speed to use at all times.
duplex { full | half }
: sets the communication mode of the interface to either
full
or
half
duplex.
Important:
Ethernet networking rules dictate that if a device whose interface is configured to auto-negotiate is
communicating with a device that is manually configured to support full duplex, the first device will negotiate to the
manually configured speed of the second device but will only communicate in half duplex mode.
manually configured speed of the second device but will only communicate in half duplex mode.
Usage
Set the medium options when the physical interface changes.
Important:
The speed keyword for the medium command is not suported on the ASR 5500.
Example
The following configures the port’s speed and communication mode to be auto negotiated.
medium auto
The following command configures the port’s interface speed to gigabit with full duplex communication.
medium speed 1000 duplex full