Yes, SwFC is lame. Howerver it would be a good band-aid, to have router
and modem syncronisation take place.
You have got to consider that some devices are asynchronous and some are synchronous
The router(PC) has no idea of the buffer fullness, this is the underlying problem! The cable modem needs to triger a "pause" when it's buffer reaches %80 full, regardless of any other rate limiting. Linux kernel can do this with some cards, under heavy CPU strain(htb).
CONFIG_NET_HW_FLOWCONTROL: net/Kconfig
Possibly, but this doesn't help you that much. If your http download is whacking out packets then your SSH session will still effectively get crowded out.
You want something to queue for a bit and prioritise this extra traffic.
...you have read the LARTC Howto haven't you?
You need something which works at IP level or above. TCP (level higher)No, the DEVICE is not > layer 3. It's simply a bridge, with a stoplight
on one end. The idea is to not make any cars crash, that has nothing todo
with the ball game a car might want to get too.
??
Yes, ECN will/should be used for routers attached to bridges.
Not as far as I am aware? (today)
broadly unsupported. ICMP stuff is frequently dropped by routers/firewalls making it problematic (look at how difficult it is just to do MTU discovery!)ECN makes this a non-issue.
??? Eh?
What's your question though? Read the LARTC howto and the ADSL QOS howto. They are both excellent docs. Also read up on some basic TCP notes. There is nothing really clever that you can do - it's all in theI would like to know is maby a ?$6000.00? Cisco cable mobem will not only
docs you just have to work around the limitations of the protocols
use HwFC but ECN as well? Thought i'd like to find a $150.00 modem that
will just do HwFC, maby an internal one?
No it won't. Well, even if it did, I don't think it would help. Unless the rest of the world understands your protocol then you will still have problems with incoming connections.
You can get a £250 cisco adsl modem which looks rather powerful. Try that if you want to experiment.
Please, please read the LARTC-Howto and ADSL-qos howto. I think it has everything that you need.
Ed W
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