search for: slowstart

...onment is sane. I have tryed to tune initial window size via /proc/sys/net/ipv4/tcp_congestion_control tryed already bic,highspeed and vegas. Some will increase the window size faster, but all start with same low window size. So i''m asking if there is a other way to eighter disable TCP slowstart completely or at least increase the inital window size. Thanks for any help,hint in the right direction. I know, this will only improve miliseconds per transfer, but it''s worth a try. regards, Paul

Hey list I have almost gotten my shaping setup up and running as planned. The last barrier seems to be tcp overshooting availible bandwidth when its starting a transfer, and thereby bursting the line, so ping rises for a moment. At least this is my best guess at the problem :) There is a possibility that its just plain old traffic being bursty for some reason.. I am using bittorrent to test this,

Hi, It has been quite a while since I looked at what was happening in Linux traffic shaping, so I am not sure if this has been discussed / improved on since I last looked. We use a traffic shaper based on HTB. The basic principals work fine, but we have a problem with ''intermittent trafic'' like http and interactive ssh sessions. Each of these categories of traffic have

Does anyone have any pointers on how other people have implemented tcp window adjustment to do bandwidth shaping? Granted the basic idea is to set the window size to be RTT * bandwidth, but a quick squiz at google turns up mostly papers on how to implement this at the sender end with a view to some new magic TCP implementation. I''m really interested in notes on how to implement at

...text with a maximum of 4 concurrent incoming calls ; ; ; Note: If keyword 'incominglimit' are omitted Asterisk will not ; enforce any maximum number of concurrent calls. ; ;[BillyBob] ;type=user ;host=192.168.1.1 ;context=incoming ;incominglimit=4 ; ; ; Outbound H.323 call to Larry using SlowStart ; ;[Larry] ;type=peer ;host=192.168.2.1 ;noFastStart=yes goksie

Hi all, I have been trying to investigate traffic shaping in an effort to solve the "unfriendly network apps" problem on a test network. I have a basis by which I''d like to shape traffic, but studying the howto doesn''t uncover and existing qdisc that seems to fit what I would like to do. The problem I would like to address is to prevent an IP address opening 10

...imum of 4 concurrent incoming calls ; ; ; Note: If keyword 'incominglimit' are omitted Asterisk will not ; enforce any maximum number of concurrent calls. ; ;[BillyBob] ;type=user ;host=192.168.1.1 ;context=incoming ;incominglimit=4 ;h245Tunneling=no ; ; ; Outbound H.323 call to Larry using SlowStart ; ;[Larry] ;type=peer ;host=192.168.2.1 ;fastStart=no [preeti] type=peer c ontext=testing host=10.142.17.67 [radhamani] type=peer context=testing host=10.142.17.68 ooh323.conf ; Objective System's H323 Configuration example for Asterisk ; ooh323c driver configuration ; ; [general] sect...

Hi I share my bandwith (adsl 512/128) between 12 users. I set up simple qos script for incoming (IMQ) and outgoing traffic using htb in root, 4 classess and esfq qdisc at leafs. Interactive traffic goeas to class1 , http,mail etc. to class2, p2p, ftp to class3, and rest to class4. Classess divide link in proportion 20% (prio 1), 40% (prio 2), 20% (prio 3) ,20% (prio 4) This works

Hello, I just found the great howto and started shaping my internet connection. The howto''s last update is a liitle in the past now so I have some questions about how things are done the best way nowadays ;-) To ensure a stable and low latency voip communication I added an HFSC qdisc to device ppp0 (1 Mbit SDSL). There are two classes (by now): One for SIP and RTP and one for the

Hello, I have a serious problem with HTB which I wasn''t able to solve myself. I run a masquerading router with ppp0 as interface to the Internet. Three clients need to share a downstream of 1 MBit, which I want to divide with tc. When I see a packet being forwarded to one of these clients, I give it the appropriate unique mark: iptables -t mangle -A FORWARD -d 192.168.34.141 -j MARK

Dear list: I have a problem I cannot handle yet, and need to solve it as soon as possible. Would be very greatful with anybody who can help me. I have a 512/512 link to internet, that I want to share between several computers. I have eth0, with a public IP address, conected to Internet, and also, eth1, with a private IP address, for network with the surfing computers. I have a main class with

...seconds before the modem responds from the Linux | Server box. Don't see the same problem if I telnet, ftp or ssh to the | server. I think you're seeing the "wait for first two packets" bug. This is typically worked around in the TCP stack of non-windows machines by defeating slowstart for the first two to four packets. You may have to look at the ppp connection with a snooper, or find a ppp paramater that adresses this (historical) MS TCP bug. --dave -- David Collier-Brown, | Always do right. This will gratify Performance & Engineering Team | some people an...