A network engineer is configuring link aggregation (LAG) on a Cisco Wireless LAN Controller (WLC) to connect to a Cisco Catalyst switch stack. The WLC distribution system ports are connected to ports GigabitEthernet1/0/1 through GigabitEthernet1/0/4 on the switch stack.
Which behavior accurately describes how the Wireless LAN Controller manages interface traffic and link failures when LAG is enabled?
- All distribution system ports are combined into a single logical port channel, and if an individual physical link fails, traffic is dynamically redistributed across the remaining active links without interrupting wireless traffic.Cevap
- BEach distribution system port acts as a dedicated primary interface for a specific WLAN, and link failures require manual failover reassignment of the affected WLAN to an operational backup port.
- CThe controller negotiates active and standby links using LACP, keeping two ports active while holding two ports in a standby state until an active link fails.
- DUntagged AP management frames are dropped by the switch trunk unless each physical distribution port is configured with a unique native VLAN setting across the member ports.
Cevap
All distribution system ports are combined into a single logical port channel, and if an individual physical link fails, traffic is dynamically redistributed across the remaining active links without interrupting wireless traffic.
When Link Aggregation (LAG) is enabled on a Wireless LAN Controller, all physical distribution system ports are combined into a single logical EtherChannel trunk. Traffic across all configured WLANs and management interfaces is load-balanced across the active links. If any physical port in the bundle experiences a failure, the controller and upstream switch immediately re-route traffic over the remaining operational member links without dropping client sessions or requiring manual intervention.
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WLAN Infrastructure Connections and LAG Operation
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