nanog mailing list archives
Re: TCP congestion control and large router buffers
From: Mikael Abrahamsson <swmike () swm pp se>
Date: Thu, 9 Dec 2010 16:20:10 +0100 (CET)
On Thu, 9 Dec 2010, Vasil Kolev wrote:
I wonder why this hasn't made the rounds here. From what I see, a change in this part (e.g. lower buffers in customer routers, or a change (yet another) to the congestion control algorithms) would do miracles for end-user perceived performance and should help in some way with the net neutrality dispute.
I'd say this is common knowledge and has been for a long time.In the world of CPEs, lowest price and simplicity is what counts, so nobody cares about buffer depth and AQM, that's why you get ADSL CPEs with 200+ ms of upstream FIFO buffer (no AQM) in most devices.
Personally I have MQC configured on my interface which has assured bw for small packets and ssh packets, and I also run fair-queue to make tcp sessions get a fair share. I don't know any non-cisco devices that does this.
-- Mikael Abrahamsson email: swmike () swm pp se
Current thread:
- TCP congestion control and large router buffers Vasil Kolev (Dec 09)
- Re: TCP congestion control and large router buffers Mikael Abrahamsson (Dec 09)
- Message not available
- Re: TCP congestion control and large router buffers Mikael Abrahamsson (Dec 13)
- Message not available
- Re: TCP congestion control and large router buffers Mikael Abrahamsson (Dec 14)
- RE: TCP congestion control and large router buffers George Bonser (Dec 14)
- RE: TCP congestion control and large router buffers Mikael Abrahamsson (Dec 14)
- Message not available
- Re: TCP congestion control and large router buffers Mikael Abrahamsson (Dec 09)
- Re: TCP congestion control and large router buffers Jim Gettys (Dec 20)
- Re: TCP congestion control and large router buffers Mikael Abrahamsson (Dec 20)
- Re: TCP congestion control and large router buffers Sam Stickland (Dec 21)
- Re: TCP congestion control and large router buffers Fred Baker (Dec 21)
- Re: TCP congestion control and large router buffers Jim Gettys (Dec 22)