nerdexam
Cisco

300-430 · Question #158

A customer managing a large network has implemented location services. Due to heavy load, it is needed to load balance the data coming through NMSP from the WLCs. Load must be spread between…

The correct answer is C. cmxctl config feature flags nmsplb.cmxgrouping true. CMX uses feature flags to control NMSP load distribution, and enabling cmxgrouping allows multiple CMX servers to act as a cluster and share the incoming NMSP data load from WLCs.

Advanced Location Services

Question

A customer managing a large network has implemented location services. Due to heavy load, it is needed to load balance the data coming through NMSP from the WLCs. Load must be spread between multiple CMX servers to help optimize the data flow for APs. Which configuration in CMX meets this requirement?

Options

  • Acmxctl config feature flags nmsplb.cmx-rssi-distribute true
  • Bcmxctl config feature flags nmsplb.cmx-loadbalance true
  • Ccmxctl config feature flags nmsplb.cmxgrouping true
  • Dcmxctl config feature flags nmsplb.cmx-ap-grouping true

How the community answered

(32 responses)
  • A
    9% (3)
  • B
    25% (8)
  • C
    59% (19)
  • D
    6% (2)

Why each option

CMX uses feature flags to control NMSP load distribution, and enabling cmxgrouping allows multiple CMX servers to act as a cluster and share the incoming NMSP data load from WLCs.

Acmxctl config feature flags nmsplb.cmx-rssi-distribute true

`nmsplb.cmx-rssi-distribute` controls how RSSI measurement data is distributed internally but does not enable server-level load balancing across multiple CMX instances.

Bcmxctl config feature flags nmsplb.cmx-loadbalance true

`nmsplb.cmx-loadbalance` is not a valid CMX feature flag for distributing NMSP load across multiple CMX servers.

Ccmxctl config feature flags nmsplb.cmxgrouping trueCorrect

The flag `nmsplb.cmxgrouping true` enables CMX grouping mode, which allows multiple CMX nodes to form a processing group and distribute NMSP data from WLCs across the cluster. This directly addresses the requirement to spread load between multiple CMX servers for AP data. It is the specific mechanism designed for scaling CMX deployments under heavy NMSP traffic.

Dcmxctl config feature flags nmsplb.cmx-ap-grouping true

`nmsplb.cmx-ap-grouping` relates to grouping APs for processing logic rather than distributing the server-side processing load across multiple CMX nodes.

Concept tested: CMX NMSP load balancing with cmxgrouping feature flag

Topics

#CMX load balancing#NMSP#AP grouping#cmxctl configuration

Community Discussion

No community discussion yet for this question.

Sign up to join the discussion
Full 300-430 Practice