02-20-2020 12:11 AM
Hi All
Can anyone tell me if many people apply QOS on their internet routers?
There is nothing we can do inbound, but I want to save outbound drops at the providers PE router so I apply QOS outbound for my voice and video traffic so I can at least control traffic to the provider.
Do many people do this?
cheers
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02-20-2020 07:16 AM - edited 02-20-2020 07:30 AM
Hmm, common (others doing such), that's hard to say.
You can prioritize traffic (if there's congestion), as it egresses your device going to the ISP. Almost always, Internet devices will not "honor" your ToS markings, so there's often no benefit to such markings. Usually, though, Internet devices will not change your ToS marking, so it might be useful at the other end of your Internet transit.
Also usually, many Internet providers work very hard to insure traffic is not subject to congestion while crossing the Internet. However, that leaves four typical bottlenecks, your link to the Internet, both ingress and egress, and the "far side's" connection to the Internet, again both ingress and egress. What you're doing only addresses one of those usual bottlenecks, so when working with "sensitive" traffic you're still much at risk unless you can totally control/manage (i.e. QoS) ingress and egress traffic for both "ends" of your Internet path. (NB: the latter can be done if you only use your Internet connections for traffic to/from your other Internet connections, alone.)
02-20-2020 12:19 AM
Hello,
it is quite common to configure QoS (especially for delay sensitive traffic such as voice and video) on the Internet facing router. What are your parameters ?
02-20-2020 12:30 AM
Hi
We prioritize, voice/video 30%
provide SIP / H323 with a minimum bandwidth
then apply outbound towards ISP
02-20-2020 04:21 AM
Hello,
sounds good. Do you need help with configuring this ?
02-20-2020 04:39 AM
Hi Georg
No I'm all good on that front,
Just wanted to know if this is common practice, as we all know, QOS is not honoured over the Internet, but we can control what we send out to at least control anything up to the ISP, but not from, does that sound accurate to you ?
02-20-2020 05:00 AM
Hello @carl_townshend
When you say internet routers do you mean pure internet outbreak or to site-to-site vpn or wan circuit such as a mpls?
Can you elaborate?
02-20-2020 06:25 AM
02-20-2020 07:16 AM - edited 02-20-2020 07:30 AM
Hmm, common (others doing such), that's hard to say.
You can prioritize traffic (if there's congestion), as it egresses your device going to the ISP. Almost always, Internet devices will not "honor" your ToS markings, so there's often no benefit to such markings. Usually, though, Internet devices will not change your ToS marking, so it might be useful at the other end of your Internet transit.
Also usually, many Internet providers work very hard to insure traffic is not subject to congestion while crossing the Internet. However, that leaves four typical bottlenecks, your link to the Internet, both ingress and egress, and the "far side's" connection to the Internet, again both ingress and egress. What you're doing only addresses one of those usual bottlenecks, so when working with "sensitive" traffic you're still much at risk unless you can totally control/manage (i.e. QoS) ingress and egress traffic for both "ends" of your Internet path. (NB: the latter can be done if you only use your Internet connections for traffic to/from your other Internet connections, alone.)
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