Re: Dual wifi connections in Bookworm

On 27/11/2024 16:28, bp@www.zefox.net wrote:

The Natural Philosopher <tnp@invalid.invalid> wrote:

On 27/11/2024 10:50, Michael Schwingen wrote:

On 2024-11-25, druck <news@druck.org.uk> wrote:

If both interfaces are talking to the same Access point on the same
frequency, it's going to be worse as WiFi can only talk to one thing at
a time, and the two interfaces will compete for bandwidth.

>
It's not different from having two completely separate clients connected to
the same AP. Unless the channel is fully saturated, the available bandwith
will be shared between the clients.
>
cu
Michael

>
It reminds me of a really strange situation we encountered in the early
days of NT and TCP/IP
>
The customer complained of 50% packet loss.
>
EXACTLY 50% packet loss.
>
It turned out their NT server was bridging tow networks and had two
Ethernet cards. And two different IP addresses.
Nothing wrong with that.
>

 Hmm, that's a close parallel to my situation. Each wifi interface
has its own IP address. However, I'm losing much more than half
my traffic, and not repeatably. Sometimes almost none is lost,
other times everything, seemingly but not predictably depending
on load.
 

Bob.. I dont *know* how linux routing copes with two interfaces to the same network.
Ideally it should open either at random, and since they have unique source addresses pings should always get back. Nothing outside the machine itself knows whether it has two interfaces or is in fact two separate machines.
I just know that my gut feeling is not to do that, at all.
When you have all these interfaces up, what does ifconfig show? and route?

Thanks for writing,
 bob prohaska
 

--
Climate is what you expect but weather is what you get.
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