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0
votes
2answers
53 views

Why does a traceroute from one location to another and vice versa show different paths?

I have recently be plagued by low download speeds from my server and was curious, so I ran a traceroute. (I have removed the end IP and the start IP). I achieve a download speed of 220Kb/s when I am ...
0
votes
1answer
31 views

Traffic shaping for upload/download speed simulation [duplicate]

I'm building a network emulator to help realize different speeds. Basically, this system would shape a given user's network metrics (such as upload speed/download speeds/packet loss/jitter etc) based ...
0
votes
0answers
16 views

Using net_cls with tc to shape ingress

I've successfully set up egress shaping using tc and net_cls, but am having a lot of trouble doing the same for ingress. I've tried using the basic tc ingress qdisc with a filter as well as using IFB ...
2
votes
1answer
193 views

Is there an equivalent of LinuxIMQs in BSD?

Is there an equivalent of LinuxIMQs in BSD ? From linuximq.net: The imq device has two common usage cases: Ingress shaping: With linux only egress shaping is possible (except for the ingress ...
8
votes
5answers
808 views

Blocking BitTorrent

How can one block, or severely slow down, BitTorrent and similar peer-to-peer (P2P) services on one's small office network? In searching Server Fault I wasn't able to find a question that served as a ...
0
votes
0answers
25 views

Incorrect real bandwidth in traffic shaping

I am trying to create a traffic shaping by HTB and iptables.I want to control bandwidth per IP so I create for each IP a class and I am using iptables marketing to assign individual filter to each ...
0
votes
1answer
2k views

Ingress filtering in Linux traffic control: Redirect traffic to IFB device

I have an openwrt router and I want to shape incoming traffic in order to classify all the traffic addressed to a certain IP address in my home network as low priority. For that purpose I want to ...
5
votes
2answers
2k views

Limiting interface bandwidth with tc under Linux

I have a linux router which has a 10GBe interface on the outside and bonded Gigabit ethernet interfaces on the inside. We have currently budget for 2GBit/s. If we exceed that rate by more than 5% ...
-3
votes
1answer
81 views

Understanding a shell script [closed]

there i am trying to understand the purpose of this shell script. If anyone can help out i would appreciate it. Thanks! This is located in android system at system/etc/throttle.sh #!/system/bin/sh # ...
3
votes
1answer
88 views

Ubuntu 14.04 - tc not working

I have used tc before on another servers to restrict the total bandwidth available on port 80, in order to make sure that there is enough throughput for port 22 during peak hours of the day. I need ...
0
votes
0answers
53 views

wondershaper doesn't work for redirected traffic

I'm trying to prioritize my network so small packages get through quicker so latency-dependent applications don't get unusable when downloading/watching videos. I want to use one pc(with one nic) ...
3
votes
0answers
823 views

pfsense 2.0 traffic priority - set full priority for single host

I have a network with several computers all on the same network and since I have very limited bandwidth I would like to prioritize traffic almost like a CPU scheduler prioritize processes. Example: ...
0
votes
3answers
396 views

Distinguishing between types of P2P traffic on a Packet Shaper

I attend and work at a university where we have a packet shaper (an old Packeteer -- 3-ish years old or so) which relegates P2P traffic to the lowest priority in the queue in order to prevent P2P ...
0
votes
1answer
290 views

Limit bandwidth in cisco router with policy-map doesn't work

I have a problem with my scenario in limiting bandwidth of ubuntu PC in GNS3 with class-map and policy-map. this is my topology in GNS3: ...
11
votes
5answers
2k views

tc u32 — how to match L2 protocols in recent kernels?

I have a nice shaper, with hashed filtering, built at a linux bridge. In short, br0 connects external and internal physical interfaces, VLAN tagged packets are bridged "transparently" (I mean, no VLAN ...
0
votes
1answer
72 views

Windows 2003 R2 traffic shaping & QOS

In our small office a LAN is connected to a modem router that will VDSL to the Internet. As a Windows 2003 R2 server exists in the LAN, I was wondering if is there a way to use this server as a ...
1
vote
1answer
192 views

Dummynet Filtering not working on FreeBSD 10

I am trying to do network emulation using dummynet in FreeBSD 10. I have this working in 9.3 however things must have changed and I cant determine exactly what but my setup no longer works. I have ...
0
votes
0answers
76 views

can someone explain traffic control `mirred egress redirect`

I am using the following traffic control command to redirect traffic from one interface to another, however I don't quite understand what's happening here. Can someone please explain me what're we ...
2
votes
1answer
439 views

Traffic shaping outbound clients source ip with tc / iptables

My question is I am trying to limit a users bandwidth on a server and wondering the best way to do this. Before I dive to far into the tc/iptables I was wondering if I could get any advice on this ...
0
votes
0answers
26 views

How to change give highest priority to Mail traffic on port 25 with tc

How can I give the highest priority to mail traffic on port 25 whit tc? I tried prio option but It didn't work out for me or maybe I'm missing something. I'd appreciate any help.
0
votes
0answers
183 views

tc-tbf rate limiting works on 100Mbit Ethernet, but not Gigabit ethernet, with Windows

I have a linux box I use as a firewall with Shorewall. I have traffic shaping enabled in order to prioritize traffic from one computer used for videoconferencing. My business has an upload speed of ...
0
votes
0answers
192 views

Simple Shorewall/netfilter traffic control/prioritization questions and possible strange side effects

I am setting up traffic prioritization for a small business to prioritize videoconferencing traffic over general web traffic. I use Shorewall (which controls iptables/netfiler) on a linux machine for ...
2
votes
3answers
1k views

Incoming (ingress) traffic shaping on Linux - bw is lower than expected

I want to limit incoming (download) speed for Linux box. Both, the box, which is configured, and trafic source (HTTP server) are connected to the same switch, if shaping is not configured, download ...
1
vote
0answers
225 views

Linux Traffic Controller (Linux tc): hierarchical token bucket (htb) packet queue size

In my Linux router, I am using the following configuration to limit the rate of traffic towards port 44444 of a client in the LAN (client address is 192.168.10.2, connected through the router's eth1 ...
0
votes
1answer
1k views

PRIO qdisc example not working

I have a TP-Link WR1043-ND with OpenWrt 12.09 (r36088, Linux 3.3.8). There is a bridge called br-lan joining eth0.1 (tagged VLAN for the 4 LAN ports) and wlan0 (Wi-Fi). There is also the WAN port at ...
-1
votes
1answer
78 views

tc-qfq is classless error

I'm using Linux 3.0.101 with iproute2-3.4.0 on a router and I'm getting this error: tc qdisc add dev eth2.2 root handle 1: qfq --> OK tc class add dev eth2.2 parent 1: classid 1:10 qfq weight 1 ...
0
votes
2answers
217 views

Is ibdump in Mellanox OFED 2 supported in Ubuntu 14.04?

I have Ubuntu 14.04. I have Mellanox Technologies MT27500 Family [ConnectX-3] HCAs. I was able to pass all the tests like ibping and ib_rdma_lat. Now I'm running MPI tests to verify that InfiniBand is ...
0
votes
0answers
35 views

Is it possible to use iptables and trafficcontrol (tc qdisc) together to set rules on only specific packets/traffic?

I would need to set delay on my network interface such that only a specific set of packets/traffic is affected by this delay. i.e., I can set a 9 sec delay on eth0 tc qdisc add dev eth0 root netem ...
1
vote
1answer
3k views

Debian7 and tc qdisc issue : RTNETLINK answers: No such file or directory

I've been searching for few days now but couldn't find the solution to my problem. I have a VPS running Debian 7, and I have root access. I am trying to add some traffic shaping (using HTB), so the ...
3
votes
1answer
215 views

linux tc htb bandwidth ceil being ignored and giving improper results

I'm setting up some htb packet queues like so: tc qdisc add dev eth0 root handle 10: htb tc qdisc add dev eth1 root handle 10: htb tc class add dev eth0 parent 10: classid 10:1012 htb rate 750kbps ...
1
vote
2answers
97 views

simple setting for traffic shaping

I have: 2 linux boxes (A, B) 1 switch (S) 1 gateway (G) [I have no control over this one] +---------------+ | switch S +-------+ +---+--------+--+ | | | ...
8
votes
3answers
10k views

Tc: ingress policing and ifb mirroring

I'm trying to setup traffic shaping on a Linux gateway as written here. The script needs to be customized because I have multiple LAN interfaces. So to shape the LAN side I am planning to create a ifb ...
1
vote
0answers
40 views

How to test if packet has been tagged with classid

I'm trying to troubleshoot an issue I'm having related to IFB Mirroring which I'm attempting to deploy based on this question: Tc: ingress policing and ifb mirroring My theory is that since the ...
27
votes
4answers
5k views

Does anyone really understand how HFSC scheduling in Linux/BSD works?

I read the original SIGCOMM '97 PostScript paper about HFSC, it is very technically, but I understand the basic concept. Instead of giving a linear service curve (as with pretty much every other ...
1
vote
0answers
58 views

Group traffic shaping with traffic control?

I'm trying to limit the output bandwidth generated by an application with linux tc. This application sends me the source port of the request that I use has a filter to limit each user at a given ...
0
votes
0answers
180 views

Traffic shaping of nodejs socket.io not based on IP or Port

I have an architecture based on multiple stateless webservices loadbalanced with haproxy. Theses webservices host a cloud storage system that allow users to upload files at a predefined bandwidth ...
0
votes
0answers
39 views

tc rules not working

Here is my tc setup : tc qdisc add dev eth0 root handle 1: htb tc class add dev eth0 parent 1: classid 1:1 htb rate 10kbit ceil 10kbit This should limit the uplink bandwidth to 10kbit. But when I ...
1
vote
0answers
72 views

Trying to understand HTB subclasses rate

I'm currently studying the opportunity of using an Ubuntu server to provide QoS instead of my consumer-class router. I've read a lot of resources about tc and HTB queuing disciplines - which look to ...
0
votes
1answer
295 views

Linux Traffic Shaping with “tc”: QoS filter for requests directly on the host not applied?

I'm trying to reduce the interface thoughput to debug my application on slower network speed. I've remembered a tc statement to do this on a interface which was working in the past. I used it on a ...
4
votes
3answers
3k views

Limiting internet traffic per user/IP based on volume

I have a shared internet connection on my network which I currently manage using Smoothwall Express. I want to be able to allocate each of my housemates a certain amount of bandwidth per month. My ...
2
votes
1answer
5k views

How can I limit the upload/download bandwidth on my CentOS server?

How can I limit the upload and download bandwidth on my CentOS server? This is a box with a single interface, eth0. Ideally, I would like a command-line solution (I've been trying to use tc), ...
2
votes
1answer
1k views

Implementing HTB, NetEM, and TBF traffic control simultaneously

I am working on a bash utility that will use several aspects of the tc Linux command line utility to emulate various network conditions. I have successfully constructed several qdisc hierarchies, one ...
3
votes
1answer
188 views

Bandwidth Throttling using tc qdiscs

I am trying to limit the bandwidth between a simple iperf server and client, using a third, passive machine acting as a bridge. With no interference, iperf returns a bandwidth of ~90 Mbits/sec. My ...
0
votes
1answer
328 views

How to slow down and share incoming network traffic using TC (traffic shaping)

I am trying to slow down incoming packets for a specific program, while a second one will have full access to the unused bandwidth. In other words, I want to control the network bandwidth sharing in ...
0
votes
6answers
135 views

I've been asked to document every port used by every application on every server. Is there a good tool for this?

Basically I need to say Server1, with ipaddress 1.2.3.4 has Application1 on it, and that network traffic uses ports 100, 101, and 103 Since many of these servers were built and setup before I ...
2
votes
1answer
3k views

deleting filters in tc

I have added a filter in tc as follows: tc filter add dev eth0 parent 1: protocol ip handle 6 fw flowid 1:6 This should be sending packets marked by iptables with '--set-mark 6' to class 1:6. The ...
0
votes
1answer
247 views

Traffic shaping bandwidth and latency based on IP

I am aware of how to shape latency and bandwidth separately. For bandwidth, I can do wondershaper etho0 100 100 for latency I can run tc qdisc add dev eth0 root netem delay 200ms However, I need ...
1
vote
1answer
273 views

Traffic control: marking packets for shaping

I'm seeking advice about which technology to use to classify packets for shaping in traffic control (tc). I've found at least 3 that could be used: iptables MARK iptables CLASSIFY tc filter Which ...
0
votes
2answers
186 views

Redirect request from HAProxy if all the instances are down

I have a situation where I have 2 HAProxy load balancers, say LAP1 and LAP2. And I have two servers, say S1 and S2 behind LAP1 and s3, s4 behind LAP2. My question is that if S1, S2 goes down, all the ...
1
vote
0answers
513 views

iptables & tc limit both upload & download together

I have the following for iptables & tc but it limits the upload speed to 2Mbits once the quota of 1GB has been hit. iptables -t mangle -A POSTROUTING -o eth0 -p tcp -m owner --uid-owner aaron ...