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Questions tagged [qos]

Qos in Telecomunications means Quality-of-Service.

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Adding 2 or more Actions on L2switch for OpenDaylight Sodium-SR4

I am working with L2switch (https://github.com/opendaylight/l2switch). In flow writer (https://github.com/opendaylight/l2switch/blob/master/l2switch-main/src/main/java/org/opendaylight/l2switch/flow/...
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How can QoS prioritize traffic if the data is encrypted?

Encrypted data can only be read by the one who is sending and receiving it right? How does QoS prioritize data if it's common now that the data that is being sent is encrypted?
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1 answer
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Packet filtering with the u32 selector does not work

I'm trying to figure out whether the QoS solution I integrated into my RaspberryPI works or not. I found out that port-based traffic classification doesn't work, so I tried to check the filters used ...
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207 views

QoS DSCP problems when sending traffic with iperf3 to Windows Host

I am encountering a problem with capturing traffic generated from a virtual machine (CentOS 6) using iperf3. Before sending the traffic (UDP) to the iperf3 server running on the Windows 10, I use a ...
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1 answer
356 views

How to limit inbound SMB bandwidth?

Prologue: This is not a duplicate question. There are many questions and answers about that subject, but I haven't found a single one which deals with inbound traffic and provides a reasonable answer. ...
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3 votes
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2k views

Disabling WMM causes Wi-Fi Speeds to drop to 14Mbps

So due to certain problems with my Android Device I decided to disable WMM in my router settings (which fixes the problem) But after disabled the total speed of the Wi-Fi is reduced to a extremely low ...
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QOS and home networking, packet prioritization

I recently had a phone call with a tech rep over at Thinkorswim (a stock trading platform) who, after looking at my app usage, said that Thinkorswim was low on the QOS ladder and therefore could be ...
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How to disable QOS in router setting?

I try to disable QOS configuration in router setting and do such as below but Qos is Enabled My Isp tell me that my router configured to 8Mbs but my internet service is 16Mbs. How can I disable it?
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5k views

What are the benefits/trade-offs of enabling "Smart Queue Management" on ER-X?

I have an ER-X router from Ubiquiti. With COVID-19, both my girlfriend and I spend a lot of time on video calls. Would enabling "Smart Queue Management" (QoS) help with the quality of calls (...
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715 views

How to configure Qos Dsl-2750U?

my internet is so slow when family starts using it along with me , i get crazy lags in-game (league of legends) & browsing aswell (even facebook) , but when i'm alone on the network (which rarely ...
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QoS router vs. long ethernet cable

So I'm a CS student currently taking some online summer classes at my mom's house. So far, I had one class, through Jitsi videocall, and the connection went horribly. I know for a fact that our home'...
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Complicated QoS Settings

Hi guys I need some help. My whole family uses the same router and when I try to play online games I encounter high ping due to my brother and sister watching Netflix, Youtube etc. I did some research ...
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56 views

How do I configure an ER-X to prioritize certain machines and services?

I have an ER-X (running v2.0.8) that is load-balancing two 16/1 DSL lines. I also have a lot of kids and Apple devices! I'm constantly getting ping spikes and other symptoms of buffer bloat and lag. ...
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Increase upload speed by repeating the same packets in networks with many users

Assume I am just a user and I'm optimizing for my upload packets, not the throughput for everyone. Say the network you're in is limited in bandwidth because there are too many users. Would it be ...
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What does DSCP mean for an unmanaged switch?

While investigating options for better quality-of-service on my LAN I read about DSCP (Differentiated services), which is an updated version of the good old ToS (Type of Service) in the IPv4 header. ...
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Single download effectively turns off internet access for everything else

I have dual link DSL internet, something around 24mb/1mb. The problem I have is that no matter what I seem to do, any time a device on my network is downloading something at near peak bandwith, it ...
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1 answer
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How do I fix bufferbloat without introducing packet loss?

I just installed SQM QoS on my Linksys E4200 (V2) in order to fix some, frankly, horrendous bufferbloat. This seems to have fixed the issue, however, it has now introduced bad packet loss that wasn't ...
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296 views

QoS policy not limiting bandwidth

I try to test QoS bandwidth limitation with Win10 x64. First I wrote some code which posts large http-packets to localhost and limit bandwidth for this app by its process name. Limitation did not work,...
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How can I prioritize packets coming different source one over another?

I am trying to prioritize a stream of packets over other packets coming into the router. I am running twitch and some other background process (iperf, other youtube live etc.) and I want to prioritize ...
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How to fill all of these fields in QoS?

I want to make the internet speed of a specific user on my router slow, but i have no background about these things. Can you tell me what should i put on each field?
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2k views

SSH Broken Pipe

Background: I’ve been researching a new problem that manifests as a dropped (broken pipe) connection during ssh sessions. Several forum searches turn up bug reports that seem to me are misdirected. ...
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2 answers
634 views

YouTube is consuming much bandwidth than other operations on my home network

I've a problem that when I'm surfing Facebook, Twitter, stackOverflow or any other site than YouTube, Pages usually takes lot of time to download. While, YouTube don't have any problems. I've a 2 Mbps ...
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2 answers
810 views

How to add QOS to Local Computer Policy with Powershell

I have this code and it works but it makes a domain GPO policy and not a local one. How do i get it to make it local? #Create QOS for RDP Session #Create a new Group Policy Object (GPO) that will be ...
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1 vote
1 answer
703 views

QoS: MAC-Priority for clients behind a repeater

I've setup a wireless network using a Linksys-Router (DD-WRT) as an AP and a TP-Link repeater for range extension. To manage bandwith for specific users, I've setup QoS-Rules on the AP (DD-WRT) using ...
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540 views

How to isolate group from computers by L3 switch from certain www?

There is a broken switch to replace and I need to buy new one. I decide on this model: https://www.linksys.com/us/p/P-LGS528/ Is it possible to isolate 24 computers that are connected to this switch ...
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Shall I give my secondary router a reserved IP through DHCP or ARP?

My primary router [192.168.100.2] has DHCP enabled through the addresses 192.168.100.3 to 192.168.100.200 - I have installed a wireless range extending router [192.168.100.3] with the same SSID at ...
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3 votes
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792 views

Slow upload speed, fast download speed between two wireless LAN devices

I've got an interesting puzzle for you: I've got two computers connected to the same LAN wirelessly. Computer A is using 802.11ac wireless protocol. Computer B is using 802.11n. I begin uploading ...
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1 vote
1 answer
4k views

How can I adjust the QoS settings on a D-Link 2740u router?

I'm having a problem with online games, because when someone in my house open YouTube or other heavy internet demanding apps my game ping skyrockets. I searched online for a bit I found that can be ...
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0 answers
98 views

Suffering from specific devices killing my home network, mainly mobile devices

I'm having some issues with extremely bogged down internet. I've tried several routers with QoS, but they didn't do much. The internet is plenty fast enough for everything, but the lack of sharing ...
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333 views

How to setup QOS?

I have 2 PC PC1 download large files all the time PC2 browser internet some times like facebook PC2 can't enter facebook because PC1 download large files all the time I want router give proitry to ...
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2 votes
1 answer
4k views

DD-WRT QoS not working on LAN/WLAN interface

I have a TP-Link WR941ND with DD-WRT firmware. Another ISP provided router dials the PPPoE connection for internet. The DD-WRT router was connected to the ISP router once through LAN in DHCP forwarder ...
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71 views

How do you verify QoS for a router?

I am using a TP-Link Archer C60. I have put my TV in the High Priority List (70%) for a smooth IPTV/Netflix experience. However, I see my TV buffering when my phone starts downloading anything ...
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250 views

WMM/WME(802.11e) not working properly in 802.11n?

I'm performing some tests regarding 802.11e (WMM/WME) performance and when doing up-link it isn't working properly. Im using an Lynksys 1200ac with OpenWrt/LEDE as AP, and two PCs lets say PC1 and ...
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2 answers
2k views

I'm using QoS on my router (gargoyle), but still experiencing lag

I've installed gargolye on my TP-Link TL-WR841N/ND v9 router. This is my current configuration for quality of service (192.168.1.245 is the static IP for my computer). The problem is, I still ...
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1 answer
289 views

What could cause tc to stop classifying packets?

My home office has very limited internet bandwidth, so I have to use QoS pretty heavily to classify traffic. I use FireHol and FireQOS to do this, which basically generate the "iptables" and "tc" ...
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Why low Uplink throughput when using EDCF / 802.11 WMM/WME?

I'm performing some tests regarding 802.11e (WMM/WME) performance, and I'm getting some unwanted results. Im using an Lynksys 1200ac with OpenWrt/LEDE installed as AP, and two PCs lets say PC1 and ...
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1 answer
7k views

What do source and destination stand for in QoS settings

I have had to deal with QoS several times but in this modem I have this complex options page: Interface: Protocol: Src IP: Src Mask: Dest IP: Dest Mask: Src Port: Dest Port: Speed (kb/s): I have ...
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Can I prioritise one UDP stream over another in linux?

I made a small program in python that produces two UDP streams through Gstreamer framework. One is the main stream, labeled A, that MUST go through on port 3333. The other one is a secondary stream, ...
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2 answers
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In three-dumb router setup, which needs to do QOS to prevent bufferbloat?

I'm setting up the "three dumb routers" in my house. My question is which router should I enable QOS (e.g. codel) on, in order to prevent bufferbloat? Should it be enabled on the edge router, or on ...
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1 answer
7k views

How to limit certain MAC address or IP range using QoS - ZTE 931 VII

I tried setting up some basic rules for my home router's QoS, but I haven't been successful so far. What I want to do is to give certain MAC addresses a "privilege", and limit all the other ...
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6 votes
1 answer
23k views

Configure DD-WRT to Limit Bandwidth on Devices

I have flashed DD-WRT firmware to my TP-Link WRT841-N router, set the basic network configuration & wireless. I want to limit bandwidth on a user who is always using torrents which is causing my ...
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0 votes
1 answer
144 views

Improve WiFi real-time performance in the presence of foreign WLANs

I want to use IEEE802.11 WiFi in infrastruture mode to communicate in both directions between an access point and several stations. The amount of traffic between the stations and the access point is ...
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What is the most efficient way for QoS/Bandwith Management?

I have a Zyxel VMG3312-B10A v2 modem router and I want to isolate my computer from the other peers. Which is the most efficient way in the perspective of power consuming (more power spent means more ...
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1 vote
1 answer
743 views

Why does enabling WMM on a WiFi router cause increase in latency?

With only a single device connected to a WiFi router, enabling WMM (WiFi Multimedia) increases the latency by 80-90%. Overall throughput increases significantly, however. Why does enabling WMM ...
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Configuring QoS for Lync on an iptables capable switch on a home network

My "Skype for Business" (i.e. Lync) voice conferencing tends to deteriorate when I upload a file or download a page during a conference and I can't always avoid those activites. My Windows 10 machine ...
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2 answers
777 views

How to prevent extra latency caused by a download

I use tcping, which pings a TCP port, in order to check the connection of my computer to a certain port. The average response time of a specific address and port is 50ms in normal connection. Now I ...
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72 views

How do I stop certain programs getting network priority without using QoS?

This seems like a super basic question, but I've done a whole bunch of searching and haven't found anything even close to an answer. I've noticed that whenever I have a youtube video buffering, the ...
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0 votes
1 answer
611 views

Crashplan DSCP QoS setting on MacOS does not work?

I'm using Crashplan on a Mac OS 10.11.6 El Capitan. Under network settings, if I change the DSCP decimal value to '10' and restart the service, I see no change in the outgoing traffic. It seems ...
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95 views

How to QoS on LAN with simultaneous streaming video and transferring files?

My modem/router is NetComm Wireless NF12. PC 1 is a HTPC running Windows 8.1 and is connected to the modem/router via CAT6 ethernnet. PC 2 is running Windows 7 and is connected to the modem/router via ...
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Linux routing with cable modem, two dynamic IPs, and QOS?

I have a cable modem that provides 2 public IPs over dhcp. I currently use 2 routers to obtain two IPs and 2 gateways onto the Internet. This is because the ISP throttles an IP if it detects any ...
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