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Zorluk: OrtaWired and Wireless Network Issues

A network technician receives reports that wireless clients in a open-plan office experience frequent dropped connections and severe latency whenever multiple users roam across the floor. An inspection shows that all wireless access points are set to broadcast on the 2.4 GHz band, share the same SSID, and are all manually locked to Channel 6 with maximum transmit power. Which of the following is the most likely cause of the network degradation?

  1. Severe co-channel interference caused by multiple overlapping access points operating on the exact same frequency channelCevap
  2. B
    Proper non-overlapping channel assignment failing because Channels 1, 6, and 11 were not configured sequentially on adjacent access points
  3. C
    Inability of the local DHCP server to assign new IP addresses as clients transition between wireless access points
  4. D
    A Layer 3 routing misconfiguration between the access points preventing packet forwarding across subnets

Cevap

The most likely cause of network degradation is severe co-channel interference resulting from configuring all wireless access points on the same frequency channel (Channel 6).
Configuring all wireless access points on the same frequency channel (Channel 6) in close proximity causes co-channel interference (CCI). Because Wi-Fi uses CSMA/CA, access points and clients on Channel 6 must wait for the shared medium to clear before transmitting, resulting in packet delays, collisions, and dropped roaming sessions.

Adım Adım Çözüm

1
Analyze the reported symptoms and environment configuration.
Identified that wireless access points are operating on the 2.4 GHz spectrum and all access points are fixed to Channel 6 at maximum power.
Understanding the physical wireless channel distribution is essential for diagnosing RF issues.
2
Evaluate the impact of uniform channel selection in the 2.4 GHz frequency band.
Multiple access points broadcasting on Channel 6 within range of each other contend for the same RF airtime, leading to packet collisions and high latency.
In 2.4 GHz Wi-Fi deployments, using the same channel on neighboring APs causes co-channel interference (CCI).
3
Determine the proper remediation strategy.
Reconfigure adjacent access points to alternate among the non-overlapping channels 1, 6, and 11, and adjust transmit power.
Distributing non-overlapping channels minimizes co-channel contention and facilitates smooth roaming.

Anahtar Kavram

Wireless Co-Channel Interference and Channel Selection
Tahmini Süre:1m 15s
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Wired and Wireless Network Issues

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