topic Re: Fragmentation Threshold in ExtremeWireless (WiNG)

Fragmentation Threshold

Aviv_Kedem — Sun, 29 Aug 2021 14:40:06 GMT

Hello,

How can I change the Fragmentation Threshold in WING5/7?

Aviv

Re: Fragmentation Threshold

ckelly — Thu, 02 Sep 2021 20:18:02 GMT

Aviv, what traffic type are you wanting to adjust the fragmentation threshold?

Re: Fragmentation Threshold

Aviv_Kedem — Thu, 02 Sep 2021 20:54:47 GMT

Hello Chris,

• Fragmentation Threshold: The fragmentation threshold is the frame length that requires packets to be broken up (fragmented) into two or more frames. Setting a lower value can reduce collisions because collisions occur more often in the transmission of long frames, which occupy the channel for a longer time. Use a low setting in areas where communication is poor or where there is a great deal of radio interference. Set the threshold by entering the frame length in bytes. Enter a value from 256 to 2346. The default value is 2346, which effectively disables fragmentation.

Regards,

Aviv

Re: Fragmentation Threshold

ckelly — Thu, 02 Sep 2021 21:01:28 GMT

Okay, you’re referring to the CTS/RTS threshold.

You can find this in the individual radio settings (radio-1 and radio-2)

rts-threshold

Re: Fragmentation Threshold

Aviv_Kedem — Sun, 12 Sep 2021 12:27:13 GMT

Hello Chris,

Please see 2 different explanations:

• RTS Threshold: The RTS threshold determines the packet size that requires a Request To Send (RTS)/Clear To Send (CTS) handshake before sending. A low threshold setting can be useful in areas where many client devices are associating with the wireless device, or in areas where the clients are far apart and can detect only the access point but not other clients. Although a low threshold value consumes more bandwidth and reduces the throughput of the packet, frequent RTS packets can help the network recover from interference or collisions. Set the threshold by entering the packet size in bytes. Enter a value from 1 to 2347. The default value is 2347, which effectively disables RTS.

My question is about Fragmentation Threshold but not about RTS Fragmentation

Regards

Aviv

Re: Fragmentation Threshold

ckelly — Mon, 13 Sep 2021 00:53:01 GMT

Aviv,

There’s no method available that I can find in WiNG for altering the actual wireless frame size by specifying a fragmentation value.

Did you find that Fragmentation Threshold definition somewhere in WiNG documentation? If so, it will likely be in reference to PPPoE, L2TPv3, or AAA policy configuration, or the MiNT MTU in WiNG, none of which applies to what you are wanting to accomplish here.

Re: Fragmentation Threshold

Aviv_Kedem — Tue, 14 Sep 2021 15:04:27 GMT

HelloChris,

Since there is no implementation for this, please close this topic.

Regards

Aviv

Re: Fragmentation Threshold

ckelly — Tue, 14 Sep 2021 20:05:40 GMT

Aviv, I cannot close but if you would like, you can mark a response as a solution/answer.

Re: Fragmentation Threshold

Tomasz — Tue, 21 Sep 2021 16:48:32 GMT

Hi Chris, Aviv,

Just thinking out loud, isn’t such fragmentation involving more ACKs in result?

Cheers,

Tomasz