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--- networking:wireless_topic:wi-fi_6:wi-fi_6 [2024/08/12 16:50] – aperez
+++ networking:wireless_topic:wi-fi_6:wi-fi_6 [2025/03/09 16:32] (current) – aperez
@@ Line 14: / Line 14: @@
   * **Minimum SNR and RSSI** Determines the minimum SNR and RSSI required for a specific MSC index.
   * **OFDMA is essentially a type of OFDM for multiple users**. It allocates in both the time domain and the frequency domain, allowing for multiple users—even those with widely varying use patterns or data loads. By comparison, OFDM can allocate only sequentially.
+  * **802.11n**: **HT (High Throughput)** is the technology used in this standard.
+  * **802.11ac**: **VHT (Very High Throughput)** is the technology used in this standard.
+  * **802.11ax**: **HE (High Efficiency)** is the technology used in this standard, which is also referred to as Wi-Fi 6.
+  * **IEEE 802.11be (future standard)**: **Extremely High Throughput (EHT)** is the technology anticipated for this standard, also known as Wi-Fi 7.
+In summary, **VHT** refers to the **Very High Throughput technology used in 802.11ac**, while **HE** refers to the **High Efficiency technology used in 802.11ax (Wi-Fi 6)**. There is no direct correlation between **VHT** and the newly proposed **EHT technology for 802.11be**, **also known as Wi-Fi 7**. However, both **VHT** and **HE** **aim to improve Wi-Fi performance in terms of speed and efficiency compared to the previous standard, 802.11n.**
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 WPA3 and WPA2 support most new devices __but don’t support some old devices.__
 It’s advised to choose WPA3 since it’s faster and safer than its predecessors, WPA or WPA2.
+{{ :networking:wireless_topic:wi-fi_6:wep-wp3.jpg?600 |}}
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   Note: The data rate is approximate, the value in Mbps minus 30%  low modulation - greater distance - low signal level     high modulation - less distance - high signal level
+----
+{{ :networking:wireless_topic:wi-fi_6:halow-wifi.jpeg?600 |}}
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 **[[https://mcsindex.com/]]**
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 **[[https://www.waveform.com/a/b/guides/5g-and-shannons-law|5G’s Faster Data Rates and Shannon’s Law]]**
+----
+----
+===== Best practics IAP Aruba Networks =====
+**Eliminate the viability of using 80Mhz channels in 2.4 Ghz.**
+{{ :networking:wireless_topic:wi-fi_6:iap1.png?400 |}}
+I reduced the power on 2.4 Ghz to a min: 6 and a maximum of 12 dBm (decibelios-miliwatt).
+  * 23 dBm (200 mW) – High power, suitable for wide coverage.
+  * 17 dBm (50 mW) – Medium power, balanced for stability and coverage.
+  * 10 dBm (10 mW) – Low power, ideal for high-density AP environments.
+I activate the smart antenna option.
+**Smart Antenna can**:
+  * Detect the best signal path to connected devices, improving coverage and signal quality.
+  * Reduce interference by dynamically adjusting the antenna pattern in response to changes in the wireless environment.
+  * Enhance spectral efficiency by directing the signal toward clients instead of broadcasting in all directions.
+**Technologies involved**:
+  * Beamforming: Focuses the signal toward the client instead of spreading it everywhere.
+  * ClientMatch: Groups and moves clients to the best available APs.
+  * Antenna Steering: Switches between antenna patterns to optimize connectivity.
+{{ :networking:wireless_topic:wi-fi_6:iap2.png?400 |}}
+{{ :networking:wireless_topic:wi-fi_6:iap3.png?400 |}}
+Other changes:  Aruba Networks, **ARM** (**Adaptive Radio Management**):  is a feature that dynamically optimizes RF (**radio frequency**) performance by adjusting power levels, channel selection, and other parameters to reduce interference and improve efficiency.
+{{ :networking:wireless_topic:wi-fi_6:iap4.png?400 |}}
+  * Band Steering: Enabled (Encourages 5 GHz usage for better performance)
+  * Airtime Fairness: Enabled (Balances bandwidth among clients)
+  * ClientMatch: Enabled (Ensures clients connect to the best AP)
+**Aruba Networks**, **SLB** (**Server Load Balancing**) mode helps optimize traffic distribution across multiple servers to enhance performance and redundancy.
+This you have three options: **Channel, Radio, Relationship + Channel.**
+🔹 **SLB Mode Options**
+️⃣ **Channel Mode (Best for Simple Load Distribution)**
+✔ How it works: Traffic is distributed across available channels without considering the ratio.
+✔ Best for: Evenly spreading traffic across multiple links.
+✔ Use Case: General enterprise networks with equal-capacity links.
+✔ Pros: Simple to configure, ensures balanced traffic distribution.
+✔ Cons: Doesn't account for link bandwidth differences or capacity.
+️⃣**Ratio Mode (Best for Weighted Load Balancing)**
+✔ How it works: Assigns traffic based on predefined ratios (e.g., 70% to one channel, 30% to another).
+✔ Best for: Networks where different links have different capacities.
+✔ Use Case: Hybrid WAN environments, mixed-capacity backhauls.
+✔ Pros: Maximizes link efficiency by considering bandwidth differences.
+✔ Cons: Requires manual tuning to set the correct ratios.
+️⃣ **Channel + Ratio Mode (Best for Optimized Performance)**
+✔ How it works: Combines both channel-based distribution and traffic weighting based on ratios.
+✔ Best for: Advanced deployments requiring precise traffic balancing.
+✔ Use Case: Large enterprise networks, SD-WAN, cloud-based applications.
+✔ Pros: Provides fine-grained control over traffic distribution.
+✔ Cons: More complex to configure and maintain.
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