cx4-cable-length
Configure the length of the cable to be connected to the selected CX4 port.
S-Series
Syntax
[no] cx4-cable-length {long | medium | short}
Parameters
long | medium | 
short
Enter the keyword that matches the cable length to be used at the 
selected port:
• short = For 1-meter and 3-meter cable lengths.
• medium = For 5-meter cable length.
• long = For 10-meter and 15-meter cable lengths.
Defaults medium
Command Modes INTERFACE
Command History
Version 7.7.1.0 Introduced on the S-Series.
Usage 
Information
This command only works on ports that the system recognizes as CX4 ports. The show 
interfaces
 command shown in the Example below describes an attempt to configure an 
XFP port in an S25P with the command after inserting a CX4 converter into the port.
NOTE: When using a long CX4 cable between the C-Series and the S-Series, to avoid 
errors, configure the cable using the cx4-cable-length short command only.
NOTE: The 15M CX4 active cable is not supported on the C-Series and S-series. It is only 
supported for S2410 with active end on the device.
NOTE: For information about using XFP ports with CX4 cables, refer to your S-Series 
hardware guide.
Example 
(Unsuccessful)
FTOS#show interfaces tengigabitethernet 0/26 | grep "XFP type"
Pluggable media present, XFP type is 10GBASE-CX4
FTOS(conf-if-te-0/26)#cx4-cable-length short
% Error: Unsupported command.
FTOS(conf-if-te-0/26)#cx4-cable-length medium
% Error: Unsupported command.
FTOS(conf-if-te-0/26)#cx4-cable-length long
% Error: Unsupported command.
FTOS(conf-if-te-0/26)#
Example 
(Successful)
FTOS#config
FTOS(config)#interface tengigabitethernet 0/52
FTOS(conf-if-0/52)#cx4-cable-length long
FTOS(conf-if-0/52)#show config
!
interface TenGigabitEthernet 0/51
  no ip address
  cx4-cable-length long
690