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300-425 · Question #183

A customer has this wireless design: - two Cisco Catalyst 9800 Series wireless controllers that are configured in a high-availability SSO cluster to manage the APs in a local office network - 100…

The correct answer is D. Configure the mobility MAC address for the high-availability cluster. To ensure the anchored traffic remains up if a single WLC in the high-availability cluster fails, the mobility MAC address for the high-availability cluster should be configured. This allows the APs to recognize the cluster as a single entity, maintaining the CAPWAP tunnel to…

WLAN High Availability

Question

A customer has this wireless design:

  • two Cisco Catalyst 9800 Series wireless controllers that are

configured in a high-availability SSO cluster to manage the APs in a local office network

  • 100 APs in local mode that are registered to the high-availability

cluster

  • one Catalyst 9800 Series wireless controller that is deployed as an

anchor in a DMZ

  • a CAPWAP tunnel in UP state between the high-availability cluster and

the anchor WLC The customer wants the anchored traffic to remain up if a single WLC in the high-availability cluster fails. How must this requirement be incorporated into the design?

Options

  • AConfigure the APs with the high-availability cluster as the primary base.
  • BDeploy EMC APs as anchors and configure a high-availability cluster.
  • CCreate a separate EoIP tunnel for each WLC in the high-availability cluster.
  • DConfigure the mobility MAC address for the high-availability cluster.

How the community answered

(18 responses)
  • A
    6% (1)
  • B
    17% (3)
  • C
    11% (2)
  • D
    67% (12)

Explanation

To ensure the anchored traffic remains up if a single WLC in the high-availability cluster fails, the mobility MAC address for the high-availability cluster should be configured. This allows the APs to recognize the cluster as a single entity, maintaining the CAPWAP tunnel to the anchor WLC in the DMZ even if one of the WLCs in the cluster fails.

Topics

#SSO cluster#anchor WLC#mobility MAC address#CAPWAP tunnel

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