Enabling Lacp; Configuring The Channel Mode For A Port; Cisco Nexus 3000 Series Nx-Os Layer 2 Switching Configuration Guide, Release 5.0(3)U1(1 - Cisco Nexus 3000 series Configuration Manual

Enabling LACP

This example shows how to configure hardware hashing on an EtherChannel:
switch# configure terminal
switch (config)# interface port-channel 21
switch(config-if)# hardware multicast hw-hash
This example shows how to remove hardware hashing from an EtherChannel:
switch# configure terminal
switch (config)# interface port-channel 21
switch(config-if)# no hardware multicast hw-hash
Enabling LACP
LACP is disabled by default; you must enable LACP before you begin LACP configuration. You cannot
disable LACP while any LACP configuration is present.
LACP learns the capabilities of LAN port groups dynamically and informs the other LAN ports. Once LACP
identifies correctly matched Ethernet links, it facilitates grouping the links into an EtherChannel. The
EtherChannel is then added to the spanning tree as a single bridge port.
SUMMARY STEPS
1. switch# configure terminal
2. switch(config)# feature lacp
3. (Optional) switch(config)# show feature
DETAILED STEPS
Command or Action
Step 1 switch# configure terminal
Step 2 switch(config)# feature lacp
Step 3 switch(config)# show feature
This example shows how to enable LACP:
switch# configure terminal
switch(config)# feature lacp

Configuring the Channel Mode for a Port

You can configure the channel mode for each individual link in the LACP EtherChannel as active or passive.
This channel configuration mode allows the link to operate with LACP.
When you configure EtherChannels with no associated protocol, all interfaces on both sides of the link remain
in the on channel mode.

Cisco Nexus 3000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.0(3)U1(1)

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Purpose
Enters configuration mode.
Enables LACP on the switch.
(Optional)
Displays enabled features.
Configuring EtherChannels