Use this command to create a channel group that includes the
interface that you are working on and to add or remove specific interfaces from
the channel group. Use this command to move a port from one channel group to
another. You enter the channel group that you want the port to move to; the
switch automatically removes the specified port from its present channel group
and adds it to the specified channel group.
force keyword to force the addition of the
interface into the specified channel group.
After you enable LACP globally, by using the
lacp command, you enable LACP on each channel by
configuring the channel mode as either
passive. An EtherChannel in the
on channel mode is a pure EtherChannel and
can aggregate a maximum of eight ports. The EtherChannel does not run LACP.
You cannot change the mode for an existing EtherChannel or any of its
interfaces if that EtherChannel is not running LACP; the channel mode remains
on. The system returns an error message if
you attempt to change the mode.
no form of this command to remove the
physical interface from the EtherChannel. When you delete the last physical
interface from an EtherChannel, the EtherChannel remains. To delete the
EtherChannel completely, use the
no form of the
The compatibility check includes the following operational
- Port mode
- Access VLAN
- Trunk native VLAN
- Tagged or untagged
- Allowed VLAN list
- Switched Port Analyzer (SPAN) (cannot be SPAN source or
- Storm control
compatibility-parameters command to see the full
list of compatibility checks that Cisco NX-OS uses.
You can only add interfaces configured with the channel mode set to
on for static EtherChannels, that is, without
a configured aggregation protocol. You can only add interfaces configured with
the channel mode as
passive to EtherChannels that are running
You can configure these attributes on an individual member port. If
you configure a member port with an incompatible attribute, Cisco NX-OS
suspends that port in the EtherChannel.
When the interface joins an EtherChannel, some of its individual
parameters are overridden with the values on the EtherChannel, as follows:
- MAC address
- Spanning Tree Protocol (STP)
- Service policy
- Quality of service (QoS)
- Access control lists (ACLs)
Interface parameters, such as the following, remain unaffected when
the interface joins or leaves a EtherChannel:
- Cisco Discovery Protocol (CDP)
- LACP port priority
- Rate mode
- SNMP trap
If interfaces are configured for the EtherChannel interface and a
member port is removed from the EtherChannel, the configuration of the
EtherChannel interface is not propagated to the member ports.
Any configuration changes that you make in any of the compatibility
parameters to the EtherChannel interface are propagated to all interfaces
within the same channel group as the EtherChannel (for example, configuration
changes are also propagated to the physical interfaces that are not part of the
EtherChannel but are part of the channel group).