Questions tagged [qos]
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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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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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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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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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 to ...
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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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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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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 ...
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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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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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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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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 I'...
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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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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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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 device-...
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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 ...
user62491
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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 ...
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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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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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How can I block Spotify on our company network?
How can I block Spotify on our company network? Unfortunately it's killing our bandwidth and the effect is really serious.
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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 ...
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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 ...
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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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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 ...
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MasterShaper alternative [closed]
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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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 ...
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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 ...
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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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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 ...
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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 ...
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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 ...
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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 ...
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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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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 ...
user88182
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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 for ...
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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 ...
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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 ...
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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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QoS configuration for a medium ISP
What is the best Linux-based QoS platform to implement a configuration where all 256Kbps DSL clients (all belong to the same IP range) get a guaranteed speed of 200Kbps with single QoS rule?
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QoS on DD-WRT Questions
I have a question about quality of service (QoS) on linux (DDWRT specifically).
Here's my setup:
Recent version of DD-WRT
120 kbytes/s up and 2mbytes/down
Traffic limited to about 80% of stated ...
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Making iptables recognize youtube streams and large files
I use Ubuntu server 10.04 with the stock kernel as a NAT router. I use iptables and tc to do port based traffic prioritization. It is working fine. I have given http higher priority. So my network ...
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What difference does the interface ATM0 bandwidth field on a Cisco 1417 router make?
I’m the chairman of the wiring committee for a hundred-unit condominium, and not a Cisco expert. We have a trio of Cisco Catalyst 3550 switches, connected to an old Cisco 1417 router, connected to a ...
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Bandwidth sharing via police exceed-action drop on Cisco Catalyst 3550s: anything less draconian?
I’m the chairman of the wiring committee for a hundred-unit condominium, and not a Cisco expert. We have a trio of Cisco Catalyst 3550 switches, connected to an old Cisco 1417 router, connected to a ...
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Rsync over NFS with QoS: How to view real transfer speed?
We have a bandwidth limit between a Linux server and a NAS, created using 'tc' with an IP filter.
When writing to an NFS mount of the NAS, rsync claims a very high transfer speed for each file and ...
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More than 8 classes in a policy-map - Cisco 3560
It appears I am limited to 8 classes per policy-map.
Here is the error message when using the Cisco Network Assistant:
The policy "policy-name" contains more
than 8 policers, which means it ...
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Multiple ACL on Cisco Catalyst with QoS classes - behaviour
I would like to limit the traffic to 2 Mbit for several IP addresses.
With the following configuration, will each IP be limited to 2 Mbit or is it all IP addresses combined?
Configuration:
access-...
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unknown error when using TCMON/TCCOM to apply QoS DSCP marking on Windows 2003
I have a requirement to mark certain traffic originating from some Windows 2003 servers with a certain DSCP value.
Unfortunately in this situation neither marking the traffic on a router or ...
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How to set dscp for incoming TCP connections to my server?
I need to specify dscp settings for the incoming TCP connections to my server. What is the easiest way to do that?
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QoS for Firebird database connections - how?
Our Firebird database connection goes through a network connection that seems to imply a high latency for normal TCP connections. However, I am quite sure that the network connection supports quality-...
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QOS on ubuntu server
I want to run the following script on ubuntu server. eth1 is NAT interface, and eth2 is the WAN interface which has a static public ip:
TCA="tc class add dev eth2"
TFA="tc filter add dev eth2"
TQA="...
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Simple QoS policy on Cisco 877 DSL doesn't appear to do anything
I'm trying to get a fairly simple QoS policy up and running on my DSL line using a Cisco 877. My aims are fairly simple - make sure that realtime and management stuff like RTP and SSH works regardless ...
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