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Forum Discussion
RBR850 RTS / CTS
I’ve been doing some research around RTS / CTS. It would appear that the current size parameters of RTS/CTS are based around the older WEP encryption standard. Below are the different possible m...
I am almost dizzy trying to comprehend WiFi. (Love that O'Reilly chapter! but, OMG!!!) Switch the radio to 802.11a to send the RTS (on as many channels as are desired), get the CTS responses and then set the radio to the highest speed possible to transmit the data packet on the correct number of channels.
O'Reilly makes it very clear that the RTS/CTS business was created well before 5G WiFi. Would love to know how somebody decided that 2347 was the ideal cutoff point. i.e. For a packet shorter than that, just send the damn thing and retransmit if something goes wrong. If longer, then to a RTS/CTS to get permission to hog the radio for a longer time. Where I was going was changing the RTS/CTS from 2347 to a smaller number increases the number of packets that will require RTS/CTS protocol. When it is set to 2347, than a packet of 2346 octets would ignore the RTS/CTS and just send (as would 2345, 2344, 2343... down to the smallest packet possible). Yes, there are tons of huge packets, but there may be smaller ones as well. (Think of ICMP with 32 octets, ARP broadcasts (28), or DHCP (576).)
It's not clear (to me) what the default value is. To my knowledge, I have never changed mine and it is set to 2347 (on two different Orbis). Perhaps the default is 64 for the AX products, or......??
Another unknown is the setting for the 5G (and the backup 2.4G) backup WiFi channels. I am pretty confident that those advanced WiFi settings (Transmit Power, RTS/CTS) are for the user facing WiFi channels and have no effect on the backhaul channels. On the AX product, for example, there is an option to turn off 'ax' capability on the user facing channels, but I am 100% certain that ax remains on the backhaul channel.
Reading the O'Reilly chapter was a real eye opener.
I consider myself fairly competent in IT having worked In the sector for decades designing complex Global IT solutions.
Regarding the question around NG’s default RTS/CTS values I suspect at some point they set it to 64 in the firmware however it only get configured for new out of the box installations or when you do a factory reset.
I consider myself fairly competent in IT having worked In the sector for decades designing complex Global IT solutions.
Regarding the question around NG’s default RTS/CTS values I suspect at some point they set it to 64 in the firmware however it only get configured for new out of the box installations or when you do a factory reset.