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Zorluk: KolayWLAN Infrastructure Connections and LAG

An administrator needs to enable Link Aggregation (LAG) on a Cisco Wireless LAN Controller (WLC) connected to an upstream switch stack. Place the configuration and operational steps in the correct chronological sequence from start to finish.

  1. 1Save the current WLC running configuration as a baseline precaution before making structural system changes.
  2. 2Navigate to the Controller General settings menu in the WLC administrative GUI and set the Link Aggregation (LAG) attribute to Enabled.
  3. 3Save the WLC configuration updates and reboot the controller to apply the newly selected LAG mode.
  4. 4Configure the connected switch interfaces into a single static EtherChannel bundle using the command 'channel-group <id> mode on'.

Cevap

The correct sequence begins with saving the WLC configuration, enabling LAG in the controller settings, saving and rebooting the WLC to apply the change, and finally configuring the connected switch ports as a static EtherChannel (mode on).
The sequence follows the standard Cisco procedure for turning on controller-wide Link Aggregation (LAG). First, current configuration state is saved. Second, LAG is enabled in the WLC settings menu. Third, the WLC configuration is saved and the controller is rebooted to apply the change. Fourth, the corresponding switch ports are configured into a static EtherChannel using 'channel-group mode on' to complete the physical and logical aggregation.

Adım Adım Çözüm

1
Save the existing WLC configuration
Establishes a baseline configuration state before initiating a system reboot
It is essential to safeguard existing controller configuration prior to changing structural hardware modes.
2
Enable LAG in WLC settings
Places the WLC into a pending LAG state
The controller feature knob for LAG must be explicitly enabled before hardware interface aggregation takes effect.
3
Save and reboot the WLC
The controller reboots with LAG operational across all physical distribution system ports
Enabling LAG on a Cisco WLC requires a reboot to reconfigure internal interface mappings.
4
Configure static EtherChannel on the upstream switch
The switch ports bundle into a single logical link matching the WLC LAG mode
Cisco WLC LAG requires static frame grouping ('mode on') on the switch side since WLCs do not support LACP or PAgP negotiation.

Anahtar Kavram

WLC Link Aggregation (LAG) configuration workflow and switch port requirements
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Konular

WLAN Infrastructure Connections and LAG

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