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| Chapter 8 Wireless Screen | |
| Table 26 Wireless: MBSSID | ||
| LABEL | DESCRIPTION |
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| Disable channel | This field displays only when you select 802.11a or 802.11n/a in |
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| switching for DFS | the 802.11 Radio Mode field. Select this if you do not want to use |
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| DFS (Dynamic Frequency Selection). |
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| DFS (dynamic frequency selection) allows an AP to detect other |
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| devices in the same channel. If there is another device using the |
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| same channel, the AP changes to a different channel, so that it can |
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| avoid interference with radar systems or other wireless networks. |
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| Super Mode | (For |
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| Select this to improve data throughput on the WLAN by enabling |
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| fast frame and packet bursting. |
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| Channel ID | Set the operating frequency/channel depending on your particular |
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| region. |
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| To manually set the NWA to use a channel, select a channel from |
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| the |
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| Channel Usage tab to open the Channel Usage screen to make |
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| sure the channel is not already used by another AP or independent |
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| To have the NWA automatically select a channel, click Scan |
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| instead. |
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| Disable DCS to | This appears if the DCS feature is enabled. |
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| unlock | Click this to disable DCS and select a channel ID manually. |
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| Note: DCS is Disabled by default |
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| Short GI | This field is available only when 802.11n/g or 802.11n/a is |
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| selected as the 802.11 Radio Mode. Select Enable to use Short |
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| GI (Guard Interval). The guard interval is the gap introduced |
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| between data transmission from users in order to reduce |
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| interference. Reducing the GI increases data transfer rates but also |
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| increases interference. Increasing the GI reduces data transfer |
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| rates but also reduces interference. |
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| This field is available only when 802.11n/g or 802.11n/a is |
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| Aggregation | selected as the 802.11 Radio Mode. Select Enable to allow the |
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| grouping of several |
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| into one large |
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| function allows faster data transfer rates. |
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| RTS/CTS Threshold | Use RTS/CTS to reduce data collisions on the wireless network if |
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| you have wireless clients that are associated with the same AP but |
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| out of range of one another. When enabled, a wireless client sends |
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| an RTS (Request To Send) and then waits for a CTS (Clear To Send) |
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| before it transmits. This stops wireless clients from transmitting |
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| packets at the same time (and causing data collisions). |
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| A wireless client sends an RTS for all packets larger than the |
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| number (of bytes) that you enter here. Set the RTS/CTS equal to or |
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| higher than the fragmentation threshold to turn RTS/CTS off. |
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| Fragmentation | The threshold (number of bytes) for the fragmentation boundary for |
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| Threshold | directed messages. It is the maximum data fragment size that can |
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| be sent. Enter an even number between 256 and 2346. |
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| 141 |
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