Achieving Redundancy for Guest VLAN Failures on Cisco WLCs

E.

When deploying wired guest access using a single guest VLAN across multiple Cisco WLCs, it is important to have a redundancy plan in place in case the guest VLAN fails on the infrastructure switches. Here are the explanations for the given answers:

A. Configure one Cisco WLC as the anchor controller for the wired guest VLAN.

• This option involves designating one Cisco WLC as the primary controller for the wired guest VLAN. The other WLCs will be configured as secondary controllers. If the primary controller fails, one of the secondary controllers will take over as the anchor controller. This provides redundancy for the wired guest VLAN.

B. Configure a different wired guest VLAN on each Cisco WLC.

• This option involves creating a separate guest VLAN on each WLC. This provides redundancy for the wired guest VLAN because if one VLAN fails, guests can still access the network through the other VLANs. However, this approach requires more configuration and management overhead.

C. Configure all the Cisco WLCs in the same mobility group.

• This option involves configuring all the WLCs in the same mobility group, which allows the WLCs to share configuration and status information. If the guest VLAN fails on one WLC, the other WLCs in the group can take over and provide redundancy for the wired guest access.

D. Set a fallback port on the wired guest interface.

• This option involves setting up a backup port on the wired guest interface that can be used in case the primary port fails. If the primary port fails, traffic will automatically be rerouted to the backup port, providing redundancy for the wired guest VLAN.

E. You cannot achieve redundancy of the wired guest VLAN.

• This option is incorrect. Redundancy for the wired guest VLAN can be achieved using the options described above.

In summary, options A, B, C, and D are all valid options for achieving redundancy for the wired guest VLAN. Option E is incorrect.