Static cluster link aggregation

You must configure a static cluster LA channel on the cluster IP address and on the external connecting device. If possible, configure the upstream switch to distribute traffic based on IP address or port instead of MAC address.

To configure a static cluster LA channel by using the CLI

1. Log on to the cluster IP address.

   Note

   Make sure that you configure the cluster LA channel on the cluster IP address before configuring link aggregation on the external switch. Otherwise, the switch forwards traffic to the cluster even though the cluster LA channel is not configured. It can lead to loss of traffic.

2. Create a cluster LA channel.

   add channel  -speed 

   Example

   add channel CLA/1 -speed 1000

   Note

   You must not specify the speed as AUTO. Rather, you must explicitly specify the speed as 10, 100, 1000, or 10000. Only interfaces that have the speed matching theattribute in the cluster LA channel are added to the active distribution list.

3. Bind the required interfaces to the cluster LA channel. Make sure that the interfaces are not used for the cluster backplane.

   bind channel  

   Example

   bind channel CLA/1 0/1/2 1/1/2 2/1/2

4. Verify the configurations.

   show channel 

   Example

   show channel CLA/1

   Note

   You can bind the cluster LA channel to a VLAN by using thebind vlancommand. The interfaces of the channel are automatically bound to the VLAN.

5. Configure static LA on the external switch. The following sample configurations are provided for the Cisco® Nexus 7000 C7010 Release 5.2(1). Similar configurations must be performed on other switches.

   Global config: Configure terminal Interface level config: interface Ethernet2/47 switchport switchport access vlan 10 channel-group 7 mode on no shutdown interface Ethernet2/48 switchport switchport access vlan 10 channel-group 7 mode on no shutdown