• For a 100/1000 Ethernet interface, enter the keyword 
GigabitEthernet followed by the slot/port information.
• For a Gigabit Ethernet interface, enter the keyword 
GigabitEthernet followed by the slot/port information.
• For a SONET interface, enter the keyword sonet followed by 
the slot/port information.
• For a 10-Gigabit Ethernet interface, enter the keyword 
TenGigabitEthernet followed by the slot/port 
information.
• For a 40-Gigabit Ethernet interface, enter the keyword 
fortyGigE followed by the slot/port information.
Defaults Not configured.
Command Modes INTERFACE PORTCHANNEL
Command History
Version 8.3.11.1 Introduced on the Z9000.
Version 8.5.1.0 Added support for 4-port 40G line cards on ExaScale.
Version 8.3.7.0 Introduced on the S4810.
Version 8.1.1.0 Introduced on the E-Series ExaScale.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
pre-Version 
6.2.1.0
Introduced on the E-Series.
Usage 
Information
Use the interface port-channel command to access this command.
You cannot add an interface to a Port Channel if the interface contains an IP address in its 
configuration. Only the shutdown, description, mtu, and ip mtu commands can be 
configured on an interface if it is to be added to a Port Channel. The mtu and ip mtu 
commands are only available when the chassis is in Jumbo mode.
Link MTU and IP MTU considerations for Port Channels are:
• All members must have the same link MTU value and the same IP MTU value.
• The Port Channel link MTU and IP MTU must be less than or equal to the link MTU and 
IP MTU values configured on the channel members. For example, if the members have 
a link MTU of 2100 and an IP MTU 2000, the Port Channel’s MTU values cannot be 
higher than 2100 for link MTU or 2000 bytes for IP MTU.
When an interface is removed from a Port Channel with the no channel-member 
command, the interface reverts to its configuration prior to joining the Port Channel.
An interface can belong to only one Port Channel.
On the E-Series TeraScale, you can add up to 16 interfaces to a Port Channel; E-Series 
ExaScale can add up to 64. You can have eight interfaces per Port Channel on the C-Series and 
S-Series. The interfaces can be located on different line cards but must be the same physical 
type and speed (for example, all 1-Gigabit Ethernet interfaces). However, you can combine 
100/1000 interfaces and GE interfaces in the same Port Channel.
If the Port Channel contains a mix of interfaces with 100 Mb/s speed and 1000 Mb/s speed, the 
software disables those interfaces whose speed does not match the speed of the first 
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