Re: Cake: how know 'framing compensation'?

Linux Advanced Routing and Traffic Control

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On 9/3/21 7:57 AM, Marco Gaiarin wrote:
I'm thinking about give Cake a try:
I'll have to check that out.  Hopefully I'll be able to understand some 
of it and learn something.
	https://www.bufferbloat.net/projects/codel/wiki/Cake/
The article definitely has my attention talking about the different 
frame types.
How can i determine my 'framing compensation'? I'm using now an wireless link, terminating the PPPoE link directly on my linux router, via PPPD/PPPOE.
So, i'm surely using PPPoE, but pppoe-vcmux or pppoe-llcsnap? How 
determine it?
I'd think that it should be easy to figure out with tcpdump / Wireshark.

I think that all of the PPPoE incarnations that I've experienced have been "Over Ethernet" and I'm taking that to be RFC 1483 Bridging. As such, I'd go out on a limb and try pppoe-llcsnap /first/ and then fall back to pppoe-vcmux if the former didn't work.
I say this because vcmux seems to hint at an (ATM) virtual circuit which 
is a lower level than RFC 1483 Bridging.
At least that's my two cents worth.



--
Grant. . . .
unix || die

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