In a Wireless LAN Controller environment configured with Link Aggregation (LAG) across eight distribution system ports, what happens when seven links fail?

In a Wireless LAN Controller environment configured with Link Aggregation (LAG) across eight distribution system ports, what happens when seven links fail?

• A. The WLC will no longer pass wireless client traffic to the switch
• B. The WLC will automatically reconfigure all eight ports as 802.1Q trunk ports
• C. The WLC will pass all wireless client traffic to the switch
• D. The WLC will intermittently pass wireless client traffic to the switch

Answer: (C)

A single logical path is created when multiple physical links are grouped in a link aggregation. Traffic is carried over the active member links as one logical channel. With eight distribution links in the LAG and seven failing, there is still one active link. The WLC will continue to forward wireless client traffic to the switch through that remaining path, so all client traffic can still pass. No reconfiguration is needed, and traffic won’t be intermittent simply because most links are down—the active link remains a valid pathway, though bandwidth is limited to what one link can handle.

A single logical path is created when multiple physical links are grouped in a link aggregation. Traffic is carried over the active member links as one logical channel.

With eight distribution links in the LAG and seven failing, there is still one active link. The WLC will continue to forward wireless client traffic to the switch through that remaining path, so all client traffic can still pass. No reconfiguration is needed, and traffic won’t be intermittent simply because most links are down—the active link remains a valid pathway, though bandwidth is limited to what one link can handle.