Re: [aqm] PIE vs. RED

2015-08-14 Thread LAUTENSCHLAEGER, Wolfram (Wolfram)
Delayed-based RED still would associate latency with drop probability: drop probability will only go up when queueing latency goes up. A higher drop probability can only be achieved via higher queueing latency. If following Bob's statements last IETF, this could even be a desirable feature:

Re: [aqm] PIE vs. RED

2015-08-14 Thread Francini, Andrea (Andrea)
, 2015 9:56 PM To: Francini, Andrea (Andrea); Roland Bless; Jonathan Morton Cc: aqm@ietf.org Subject: Re: [aqm] PIE vs. RED That's my point (and I believe also Roland's): In a direct experimental comparison, this good property of PIE would be better emphasized against a configuration of RED where

Re: [aqm] PIE vs. RED

2015-08-14 Thread Rong Pan (ropan)
: Thursday, August 13, 2015 9:56 PM To: Francini, Andrea (Andrea); Roland Bless; Jonathan Morton Cc: aqm@ietf.org Subject: Re: [aqm] PIE vs. RED That's my point (and I believe also Roland's): In a direct experimental comparison, this good property of PIE would be better emphasized against

[aqm] PIE vs. RED

2015-08-13 Thread Bless, Roland (TM)
Hi, while looking at the PIE presentation http://www.ietf.org/proceedings/86/slides/slides-86-iccrg-5.pdf, slide 6 shows that RED is far away from the PIE queuing delay. However, I'm not sure that this comparison is really fair if looking at the choice of the parameters. The buffer limit is set

Re: [aqm] PIE vs. RED

2015-08-13 Thread Jonathan Morton
In the real world, the hardware buffer size is rarely matched to the real BDP. There are several reasons for this, but a couple of fundamental ones are: - BDP varies with RTT, which is in general different for flows simultaneously using the same link/queue to reach different remote hosts, and

Re: [aqm] PIE vs. RED

2015-08-13 Thread Francini, Andrea (Andrea)
: [aqm] PIE vs. RED Hi Jonathan, Am 13.08.2015 um 19:35 schrieb Jonathan Morton: In the real world, the hardware buffer size is rarely matched to the real BDP. There are several reasons for this, but a couple of fundamental ones are: - BDP varies with RTT, which is in general different

Re: [aqm] PIE vs. RED

2015-08-13 Thread Roland Bless
Hi Jonathan, Am 13.08.2015 um 19:35 schrieb Jonathan Morton: In the real world, the hardware buffer size is rarely matched to the real BDP. There are several reasons for this, but a couple of fundamental ones are: - BDP varies with RTT, which is in general different for flows

Re: [aqm] PIE vs. RED

2015-08-13 Thread Francini, Andrea (Andrea)
[mailto:aqm-boun...@ietf.org] On Behalf Of Roland Bless Sent: Thursday, August 13, 2015 6:39 PM To: Jonathan Morton Cc: aqm@ietf.org Subject: Re: [aqm] PIE vs. RED Hi Jonathan, Am 13.08.2015 um 19:35 schrieb Jonathan Morton: In the real world, the hardware buffer size is rarely matched

Re: [aqm] PIE vs. RED

2015-08-13 Thread Vishal Misra
the traffic scenario of each experiment. Andrea -Original Message- From: aqm [mailto:aqm-boun...@ietf.org] On Behalf Of Roland Bless Sent: Thursday, August 13, 2015 6:39 PM To: Jonathan Morton Cc: aqm@ietf.org Subject: Re: [aqm] PIE vs. RED Hi Jonathan, Am 13.08.2015 um 19:35