Quality of service is the ability to provide different priority to different applications, users, or data flows, or to guarantee a certain level of performance to a data flow.

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Which set of commands will limit the outgoing data rate to X kbps for traffic to or from port Y? [migrated]

I have a Raspberry Pi, and I'd like to have bitcoind running on it. This consumes a lot of my outgoing bandwidth at times, so I'd like to make sure it never uses more than 20 KB/s for Bitcoin data. ...
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0answers
17 views

How can the amount of bandwidth needed be calculated knowing the number of users and the type of applications they will use? [duplicate]

Looking to calculate the amount of needed bandwidth for about 400-500 users connecting to wifi to receive a podcast or use facebook and twitter.
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28 views

PRIO qdisc example from LARTC not working in OpenWrt, OK in debian

I need to do QoS on my network, so I've been reading the LARTC to figure out how. I am running attitude (r36088) on a TP-Link WR1043-ND. Reflashed and installed qos-scripts and kmod-sched only, so ...
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0answers
31 views

How to do QoS for each individual based on IP [closed]

I'm wondering if there's a way/software I can enable bandwidth control on both inbound/outbound LAN traffic between each connected host and the router? Currently I have a CentOS box running as a ...
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1answer
70 views

QoS on pfSense 2

I have a question about quality of service (QoS) on pfSense 2 I'm using pfSense 2 to load balance 2 internet line. I want to setup some rules let it work better for VoIP (Skype, x-lite), citrix, VPN, ...
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1answer
48 views

QoS - What is the 6. Bit in the DS-Field?

RFC 2474 uses the ToS byte for Differentiated Services Code Point: 0 1 2 3 4 5 6 7 +---+---+---+---+---+---+---+---+ | DSCP field |CU/ECN | ...
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1answer
66 views

Is there an effective way to monitor the load on each switch?

We have about 200 IP phones in our building and I realize we got more complaint about the phone quality after we switched our internet from 50Mbps to 200Mbps Up/Down. I know there's a possibility ...
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56 views

configuring burst with QOS on Linux

I am currently setting up qos to make sure one class of traffic has priority over the other, and currently it is limiting traffic to the indicated rate, it is not allowing them to burst above the ...
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0answers
78 views

htb with an inner gred how to setup filter to reach DPs

I want to create a qos htb class and within this class there is a gred queue. how do I add a working filter for each red queue in the gred queue? what i tried was: DEV=lo SOMEGREDETTINGS="limit ...
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1answer
175 views

Limit OpenVPN bandwith

Is it possible to configure OpenVPN server to limit bandwidth use per user? Limiting either maximum speed (etc. to 100kb/s) or total downloaded/uploaded data per month is
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0answers
119 views

Slow network with 50Mb pipe, QOS to blame?

My network runs into intermittent slow downs every so often (enough to hurt employee productivity) Lately it seems to be much worse. I believe the QoS implementation from the network provider maybe ...
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1answer
129 views

How to view qos statistics on cisco 6500?

We have a 6504 switch with supervisor 720 10GE as core/distribution. We do marking at access level on 2960. I see drops on core. So I need to know about something like mls qos int stat, but on 6500. ...
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0answers
49 views

How to mark traffic from cpu on cisco 2960S

I am writing a QOS configuration. Does the way to mark trafic from cpu on 2960S exist? 2960S doesn't support service-policy output and vlan-based qos.
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0answers
59 views

One-way peering route [closed]

I am trying to find a way to establish a one-way peering route : the goal is to be able to use my server uplink (send data) while disabling my server downlink (do not receive any packet). My initial ...
3
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0answers
55 views

IOS QOS service policy pass-through on a tunnel interface

I have some SIP phones on one network that go through an IPIP tunnel to get to the server. I've setup QOS rules to watch for appropriate VOIP traffic as follows: class-map match-any class-voice ...
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0answers
118 views

Cisco ASA 5540 multi-WAN and QoS setup

What is the best way to configure the following on a Cisco ASA 5540? I have 2 WAN lines, I need mail (tcp 25) on the one and all other traffic on the second WAN line. On the second WAN line I need ...
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1answer
40 views

MPLS: INBOUND vs OUTBOUND Labels

In The MPLS LSR if I have 4 INPUT ports with 4 labels label:port 11 : 1 22 : 2 33 : 3 44 : 4 and ONE output port How many labels can exit through the output port/interface? or do they get ...
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1answer
130 views

Is it possible to limit traffic received by a xen domU?

I have ubuntu 12.04 and openvswitch and xen installed, and I know that limit traffic sent by xen domU can be using rate limit by xen netback or "ingress_policing" by openvswitch. but because ...
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1answer
57 views

PIR/max-burst ignored message

After I typed the following police command for a type qos class on a Cisco Nexus 7000 switch: police cir 8 kbps pir 8 kbps I get the following message: Note: pir/max-burst ignored Can someone ...
5
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2answers
340 views

nginx clobbering sftp traffic during peak times - is tc the answer?

This is probably a continuation of my previous (unanswered) question because the underlying cause is probably the same. I have a Linux server with nginx and sshd running on it. It's on a shared ...
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1answer
179 views

NFS exports priority on server

I've got a server with several directories shared in exports. One of these exported directories holds home directories, others hold some random data. Is it possible somehow to prioritize i/o coming ...
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1answer
66 views

Cisco QOS vonage phone

I have a cisco 3550 switch. I have a vonage router plugged into that switch and also a obitalk router. I want to give both the vonage and obitalk boxes maximum priority. I started reading about QOS ...
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165 views

Dell PowerConnect 5448 QoS policy based on TCP port specification?

I am working with a set of Dell PowerConnect 5448 switches where I'm trying to prioritize traffic for specific TCP ports/services. In this case, it's a production warehouse printing environment, and ...
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3answers
178 views

TCP Port prioritizing on switch/router (QoS)

I have some HP ProCurve series Switch. There is a QoS option for prioritize traffic by TCP/UDP port. I set two ports: one with highest priority and another with lowest. Then I performed tests to ...
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1answer
378 views

How to set up QoS VoIP priority on linux

I am configuring a small network and my idea is to use a linux server as a proxy it will be serving local services to the clients and it will have also a squid server as a caching server for speeding ...
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1answer
561 views

HP Procurve to Cisco - QOS

I have a HP Procurve with the following: vlan 4 name "Phones" untagged 20 ip address 10.50.60.1 255.255.252.0 qos dscp 101110 qos device-priority 10.50.100.10 dscp 101110 qos ...
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1answer
758 views

Rate Limiting with HP ProCurve 5406 QOS

Is it possible to enable an absolute value rate limit using QOS on a HP ProCurve 5406 switch for a particular IP address on a specific port? We have a 10Mbps head end connection for multiple ...
3
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1answer
332 views

Qos/iptables? for vonage and openvpn? … or something else?

I have a small home office setup. I use google voice and vonage for phone calls. Please see the diagram -- I know this not the ideal but since my cisco switch (3550) packed up so this is the only ...
6
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3answers
218 views

Linux QoS: bulk data transmission during idle times

How would I do a QoS setup where a certain low-priority data stream would get up to X Mbps of bandwidth, but only if the current total bandwidth (of all streams/classes) on this interface does not ...
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1answer
134 views

what is `qos` in windows network properties? [closed]

In Windows I have QoS checkbox (selected by default) along with ipv4 etc. What is that? Should I turn it off if I don't need QoS? Does it occupy resources?
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1answer
156 views

The Public FREE WiFi project [closed]

i am trying to make a server for free wifi access to all customers in my restaurant. How i plan it: i have fast server wireless card Connectify PRO with wich i will make it as hotspot so server ...
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4answers
8k views

How can I block Spotify on our company network?

Unfortunately it's killing our bandwidth and the effect is really serious. Thanks! Chris.
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1answer
210 views

How can i implement QOS on internet traffic in windows

Is there any way i can implement QOS in windows 7 by any software. I have PC where i download data all day. I download all data from one site. I want that when i visit other http site then i get the ...
2
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1answer
255 views

Cisco DSCP based packet drop

On a Cisco router, when setting up a policy-map to shape traffic and drop packets based on DSCP (such as the example below), which class of packet will be dropped first: DSCP 0 or AF13? DSCP AF13 is ...
2
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0answers
153 views

Basic QoS policy for Dell 6248 switches

My cisco edge router tags all incoming packets as IP precedence 0, 3, and 5 depending on their priority. How can I add a matching QoS configuration on the switch so that packets are prioritized ...
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1answer
223 views

Throttling Throughput on a Metro Ethernet Uplink port using a policer?

I have a Juniper EX4200 that acts as a router in our remote data center. The Juniper is plugged into a 10 mbps metro ethernet link that connects to our office. The traffic over this link is mostly ...
2
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0answers
240 views

MasterShaper alternative

I'm looking for an alternative to MasterShaper, something possibly web-based which could allow me to manage QoS easily. Actually MasterShaper still looks supported, but would like to understand if ...
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1answer
121 views

Avoiding QoS degradation for video streaming clients

Suppose I have two routers connected via a 1Gbit connection. A client behind router 1 streams to a client behind router 2 while other clients behind router 1 transmit data to other clients behind ...
5
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2answers
5k views

How do you configure QoS for Skype?

On our office network (26 people), some users have complained of poor Skype call quality, particularly in the upstream direction. I wanted to ask, how do I identify Skype traffic, considering that it ...
2
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1answer
2k views

QoS on Cisco ASA 5505 by VLAN/subnet

My ASA 5505 has three VLANs. One connected to the internet called outside, one for our office called office (which connects to the corporate VPN) and one for a publicly accessible resource-centre. ...
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1answer
114 views

HTB qdisc child of another HTB qdisc drawbacks

In the HTB documentation can be read: Note: HTB as child of another HTB is NOT the same as class under another class within the same HTB. It is because when class in HTB can send it will send ...
2
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1answer
496 views

Traffic shaping: tc filter attached to an HTB class?

Can I attach a tc filter to an HTB class rather than to an HTB qdisc? For example: tc class add dev $IF_LAN parent 1:100 classid 1:180 htb rate 19kbit ceil 2000kbit prio 4 where: 1:100 -> Is ...
2
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1answer
273 views

Traffic shaping: tc filter catch all filter

How Can I configure a "catch all" filter with tc filter? I tested with the following code but it gave me the error: "Unknown filter "1:100", hence option "protocol" is unparsable": tc filter add ...
4
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2answers
874 views

3 WAN and a Cisco Router - PBR, QOS, Load-Balancing

I have a cisco router with 4 ethernet interfaces, scenario is as follows : 2 x Dedicated Leased Lines (2MB and 4MB) 1 x Business Class DSL 10MB 4 3COM L2, Switches, connected to a Core Switch (3COM ...
0
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1answer
165 views

Whats wrong with this router config

This is a Netgear FSM7328S which we have VOIP phones hooked up to. The phones will come online for a few seconds\minutes then drop, at which point, we need to go around and manually reset all the ...
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1answer
217 views

A simple QoS implementation with Cisco WRT160N

We have a Cisco WRT160N wireless router which shares internet to ~5 clients. What I want to do is to make sure that every client has equal bandwidth. The router has QoS option, but it gives priority ...
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2answers
2k views

How to determine number of open sockets? VM Resource Issues

I've got a MediaTemple DV server. I've been seeing a lot of QOS alerts for "numothersock" which is defined as: The number of sockets other than TCP ones. Local (UNIX-domain) sockets are used ...
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4answers
1k views

Implement QoS/Bandwidth Management or Upgrade Bandwidth?

A question that I'm faced with currently. Here's my setup: Cisco ASA 5510 15Mbps Internet Connection @ $1350/month The bandwidth was originally meant for 35-45 people but we've grown quite quickly ...
5
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5answers
564 views

Blocking BitTorrent

How can one block, or severely slow down, BitTorrent and similar peer-to-peer (P2P) services on one's small home/office network? In searching Server Fault I wasn't able to find a question that served ...
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6answers
454 views

Hardware bandwidth limiter

Really not sure if this is the place to be asking this, but here goes.. Our company has grown exponentially in the last year. As such, our internet connection needs some serious managing and limiting ...

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