Using The Cli To Enable Link Aggregation; Verifying Lag Settings Using The Cli; Configuring Neighbor Devices To Support Lag - Cisco SD2008T-NA Configuration Manual

Chapter 3 Configuring Ports and Interfaces

Using the CLI to Enable Link Aggregation

Follow these steps to enable LAG on your controller using the CLI.
Enter config lag enable to enable LAG.
Step 1
Note
Enter save config to save your settings.
Step 2
Reboot the controller.
Step 3

Verifying LAG Settings Using the CLI

To verify the new LAG settings, enter show lag summary.
To show the physical port used for a specific MAC address, enter show lag eth-port-hash mac_address.
Use this command for Layer 2 packets (LWAPP Layer 2 mode).
To show the physical port used for a specific IP address, enter show lag ip-port-hash ip_address. Use
this command for Layer 3 packets (LWAPP Layer 3 mode).
Examples:
>show lag summary
LAG Enabled
>show lag eth-port-hash 00:0b:85:1b:e2:b0
Destination MAC 00:0b:85:1b:e2:b0 currently maps to port 2
>show lag ip-port-hash 10.9.4.128
Destination IP 10.9.4.128 currently maps to port 2

Configuring Neighbor Devices to Support LAG

The controller's neighbor devices must also be properly configured to support LAG.
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•
OL-9141-03
Enter config lag disable if you want to disable LAG.
Each neighbor port to which the controller is connected should be configured as follows:
interface GigabitEthernet <interface id>
switchport
channel-group <id> mode on
no shutdown
The port channel on the neighbor switch should be configured as follows:
interface port-channel <id>
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan <native vlan id>
switchport trunk allowed vlan <allowed vlans>
switchport mode trunk
no shutdown
Cisco Wireless LAN Controller Configuration Guide
Enabling Link Aggregation
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