breakout ethernet

Configures sub-ports from 40-Gbps or 100-Gbps ports.
Syntax
breakout ethernetunit/slot/port
breakout ethernetunit/slot/port to unit/slot/port
breakout ethernetunit/slot/port ethernetunit/slot/port
no breakout ethernetunit/slot/port
no breakout ethernetunit/slot/port to unit/slot/port
no breakout ethernetunit/slot/port ethernetunit/slot/port
Parameters
ethernet
Specifies the connection as ethernet.
ethernet unit/slot/port
Specifies the Ethernet port to break out certain 40-Gbps or 100-Gbps ports into four 10-Gbps or 25-Gbps subports for and ICX 7850 devices. If there are two port identifiers in the command line, the first port designates the beginning port in a range of ports to be broken out, and the second port indicates the end of the breakout range. When a range is specified, the 10-Gbps subports within the range are implicitly included.
to
Designates a range of ports to be configured when followed by an ending port identifier. This is an optional keyword.
Modes

Global configuration mode

Usage Guidelines

This breakout ethernet command is available only on certain and ICX 7850 40-Gbps ports and 100-Gbps ports. Refer to the FastIron Management Configuration Guide for a table of available breakout ports. Refer to the RUCKUS ICX 7550 Switch Hardware Installation Guide and RUCKUS ICX 7850 Ethernet Switch Hardware Installation Guide for detailed information on breakout cables.

The breakout ethernet command can be run on stand-alone units only. Stacking cannot be enabled on a port configured for breakout. An error is returned if you try to enable stacking on a unit that has any breakout ports configured. The breakout configuration must be removed manually before stacking can be enabled. Use the show breakout command to display the breakout configuration for a unit.

The no form of the command removes the breakout configuration from the designated port or range of ports.

No configuration may be present on a port for which the breakout ethernet command is run. When the command is run on a port with a preexisting configuration, an error message is returned. The existing configuration must be removed before the breakout ethernet command can be run.

The breakout ethernet and no breakout ethernet commands must be followed by a write memory command and a reload command for the port configuration changes to take effect.

Examples

The following example configures breakout on port 1/1/5, after an existing configuration on the port is removed.

device# configure terminal
device(config)# breakout ethernet 1/1/5
Error: Port 1/1/5 has sflow forwarding
device(config)# interface ethernet 1/1/5
device(config-if-e40000-1/1/5)# no sflow forwarding
device(config-if-e40000-1/1/5)# end
device# write memory
Flash Memory Write (8192 bytes per dot).
Write startup-config done.
Copy Done.
device# configure terminal
device(config)# breakout ethernet 1/1/5 
device(config)# breakout ethernet 1/1/6 ethernet 1/1/8
device(config)# breakout ethernet 1/1/9 to 1/1/12
device(config)# write memory
Flash Memory Write (8192 bytes per dot).
Write startup-config done.
Copy Done.
device(config)# end
device# reload

The following example checks for ports with active breakout configuration and then removes breakout from ports 1/3/1 through 1/3/6.

device# show breakout

Unit-Id: 1    

Port       Module Exist    Module Conf     breakout_conf   breakout_oper    
1/1/5      Yes             No              Yes             Yes            
1/1/6      Yes             No              Yes             Yes            
1/1/7      Yes             No              Yes             Yes            
1/1/8      Yes             No              Yes             Yes            
1/1/9      Yes             No              Yes             Yes            
1/1/10     Yes             No              Yes             Yes            
1/1/11     Yes             No              Yes             Yes            
1/1/12     Yes             No              Yes             Yes            
1/2/1      Yes             No              Yes             Yes            
1/2/2      Yes             No              Yes             Yes            
1/2/3      Yes             No              Yes             Yes            
1/2/4      Yes             No              Yes             Yes            
1/2/5      Yes             No              Yes             Yes            
1/2/6      Yes             No              Yes             Yes            
1/3/1      Yes             No              Yes             Yes            
1/3/2      Yes             No              Yes             Yes            
1/3/3      Yes             No              Yes             Yes            
1/3/4      Yes             No              Yes             Yes            
1/3/5      Yes             No              Yes             Yes            
1/3/6      Yes             No              Yes             Yes            

device# configure terminal
device(config)# no breakout ethernet 1/3/1 to 1/3/6
device(config)# write memory
Flash Memory Write (8192 bytes per dot).
Write startup-config done.
Copy Done.
device(config)# end
device# reload
Note: If there had been any configuration on any subports (1/3/1:1 to 1/3/6:4), the no breakout command would have returned an error. The configuration would then have to be removed from the subports before the breakout configuration could be removed.
History
Release version Command history
08.0.30 This command was introduced.
09.0.10d Support was added for ICX 7550 devices.