similar to: Bandwidth shaping and ISP''s network peerings

Hello everyone, I''m a newbie experimenting with CBQ shaping and am facing a few problems. Can any of you please help? TEST SETUP: +---------------+ +----------------+ | 10.0.0.103 |----------->| 10.0.0.102 | +---------------+ +----------------+ 10.0.0.103: Linux, 100Mbit/s NIC 10.0.0.102: Windows, 100Mbit/s NIC, iperf tcp server (ports 2000 and 2001) WHAT I

Hi all, I am having some fun with traffic shaping, and have run into an interesting situation. Here is South Africa, most internet links are heavily oversubscribed, which means that in most cases the local link is _not_ the bottleneck, and shaping on the local link does not help that much... Does anybody have some tips on shaping such links? How can you get interractive traffic if you

Hi All, I read the advanced networking howto and find a useful way to shape my adsl link. is says: "tc qdisc add dev ppp0 root tbf rate 220kbit latency 50ms burst 1500 [...] Change 220kbit to your uplinks *actual* speed, minus a few percent. If you have a really fast modem, raise ''burst'' a bit. " My adsl''s upload brandwidth is about 120 kbits/sec,

Hi all, I have been having an issue for over a year with several Xen installations and have not been able to find out if this is just something I am missing. Basically I am trying to configure a firewall with two ethernet cards in a domU using pci passthrough. I am hiding the Ethernet cards at boot time via the pciback.hide kernel option. Right now I am running Xen 3.3.0 and the two Ethernet

Hello list, I have two differents installation Xen Hypervisor on two identical physical server, on the same switch : The problem is on my new server (Xen 4.0.1 with pvops kernel 2.6.32.24), I have bad performance on bandwidth I have test with a files copy and "iperf". Result iperf average: Transfert Bandwidth XEN-A -> Windows

Hi. I am trying to shape my upstream bandwidth, mostly per port. and I am having some problems getting things to work the way I want them to. before I throw my configuration at you guys ;), I`d like to debug it by myself - but I was not able to find a tool that allow me to monitor current bandwidth usage per port (and preferably even per port+ip). I want to know what is the current bandwidth

Hi all. We have a performance problem over a 2 Mbits radio link. The configuration is as follows: we have a RH Linux 6.1 (double PIII processor, 100 mbit ethernet, raid 5), acting as a server for a network of Windows 95, 98 and NT. On the local network I can achieve up to 40 mbits transferring large files from the server to a windows 98 machine. This network is connected through a 2 mbits radio

I am using hostap driver as an Access Point and want to shape on this wireless interface. The thing with hostap driver (and others i think) is that it creates new virtual interfaces (wlanxxx) for every node that associates with it. Lets say i want to limit all outgoing traffic on wlan0 at 512 Mbits. The problem is that i cannot apply an htb configuration on wlan0, beacause some traffic is handled

I am running XCP 0.5. I have an InfiniBand network in place that I would like to use to connect to my NFS server for VM image storage. Has anybody tried getting IB to work with XCP? Is there a document that outlines the steps for getting IB to work with XCP? Also, I don''t need to expose the IB network to any of the domU. I only want to use the IB network to connecting to NFS based

connection will remain a TCP connection unless it is broken and restarted. Usually if I stop the client and wait for about 30 seconds to reconnect, there is a much greater chance that the MTU probes work fine, and in about 30 seconds MTU is fixed to 1416. Every time when the MTU probing fails, I see latency between 700 - 1000 ms with 32 byte pings over a LAN. Every time when the MTU probing does

What is the maximum speed for download from a samba share? I have a 100 kbit/s Internet The maximum speed for a download from my  webserver with samba is about 25.000 kbit/s The bottleneck is the samba access.  Without samba  I can download with 100 kbit/s So the question? is it possible to get more speed or is this the maximum speed with samba? I tried a lot of hints for samba tuning but

Hi all, I recently installed traffic shaping on my ADSL line with a nominal upload rate of 1MBit. My Modem says it has an upload bitrate of 843 kbits. So I thought, to use a ceiling of 800kbit for the root qdisc is a good idea. But with that setting I only achieved upload rates of around 300kbits whereas I reached around 650 kbits without traffic shaping. Yesterday I played a little with the

Hi I am search a sample config for my linux box: Shorewall 3.2.3 Eth0 => Internet Access 4Mbits on ethernet Eth1 => Lan Eth2 => Lan 2 Eth3 => Lan 3 i want limit the internet access: Eth1 = 2 Mbits Eth2 = 0,5 Mbits Eth3 = 1,5 Mbits but if eth1 don''t use 2 Mbits other lan can use it anyone have a simple sample config for help me ? Thanks bye

I have a Dell server with four bonded, gigabit interfaces. Bonding mode is 802.3ad, xmit_hash_policy=layer3+4. When testing this setup with iperf, I never get more than a total of about 3Gbps throughput. Is there anything to tweak to get better throughput? Or am I running into other limits (e.g. was reading about tcp retransmit limits for mode 0). The iperf test was run with iperf -s on the

Hello, I have a problem with simple traffic shapping in shorewall, my current configuration is: zones vlan10 ipv4 # interfaces vlan10 vlan10 detect tcpflags,routeback shorewall.conf TC_ENABLED=Simple tcinterfaces vlan10 Internal 1mbit:50kb shorewall show tc Device vlan10: qdisc prio 5: root refcnt 2 bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1

I'm only doing one frame using speex_encode_int greatly simplifies my code I'm not sure why the sample I was working off of was converting the shorts to floats then calling the other encode/decode methods. Based off of your suggestions I tried the following but I get the same result. virtual Enigma::u8* Encode(Enigma::u8* inputBuffer,size_t inputSize, size_t& outputSize) {

Hi, I am using the speex 1.0.4 library from Windows. I have posted my problem before but didn't get a solution. I am doing an VOIP project in which i am recording sound and streaming it to the peer. I wanted to encode and decode wav files that brought me to this site. I am recording sound in the following format:- m_WaveFormatEx.wFormatTag = WAVE_FORMAT_PCM;

> Subject: [LARTC] Small ISP problems (CBQ) > First of all, this is what we want (in network priority order): > 1: SSH - to be realtime always. I don''t think you want this to always be high prio - that includes scp. > 2: HTTP to be fast, always. Clearly can''t be done if you have more http requests than your bandwidth can handle. > 3-> ftp, direct-connect,

Hi, I wanted to implement some QOS on my Linux Box with HTB, but after some time spend on the configuration and tests, I still don''t manage to have some correct results. Here are the details : -ROOT 2000 kbits -HIGHPRIO SUBCLASS 50 kbits prio 0 -SUBCLASS1 750 kbits prio 1 -SERVICE1 250 kbits prio 1

Hello all, I''ve been trying to test HTB performance for different link bandwidths to find potential limits and this is what I have so far: http://home.comcast.net/~msethuraman/htbtest/ Can members please go over the setup, test procedure and the results and answer a few questions? 1. Is the testing methodology okay and can the results be considered accurate? If so, is this a decent