Cisco Systems N5KC5596TFA manual Configuring Hardware Hashing for Multicast Traffic, Enabling LACP

Configuring Port Channels

Configuring Hardware Hashing for Multicast Traffic

Configuring Hardware Hashing for Multicast Traffic

By default, ingress multicast traffic on any port in the switch selects a particular port channel member to egress the traffic. You can configure hardware hashing for multicast traffic to reduce potential bandwidth issues and to provide effective load balancing of the ingress multicast traffic. Use the hardware multicast hw-hashcommand to enable hardware hashing. To restore the default, use the no hardware multicast hw-hashcommand.

Procedure

	Command or Action	Purpose
Step 1	switch# configure terminal	Enters configuration mode.
Step 2	switch(config)# interface port-channel	Selects the port channel and enters the interface
	channel-number	configuration mode.
Step 3	switch(config-if)# hardware multicast	Configures hardware hashing for the specified
	hw-hash	port channel.

This example shows how to configure hardware hashing on a port channel:

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 a port channel:

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 port channel. The port channel is then added to the spanning tree as a single bridge port.

Procedure

	Command or Action	Purpose
Step 1	switch# configure terminal	Enters configuration mode.
Step 2	switch(config)# feature lacp	Enables LACP on the switch.
Step 3	switch(config)# show feature	(Optional)
		Displays enabled features.

Cisco Nexus 5000 Series NX-OS Interfaces Configuration Guide, Release 5.2(1)N1(1)

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