RE: QoS for Office365

[Steve Mikulasik via NANOG <nanog () nanog org>]

Even if QoS on the Internet was possible it would be destroyed by everyone marking all their traffic with the highest 
priority to get the best performance. Tragedy of the commons. 



-----Original Message-----
From: NANOG <nanog-bounces () nanog org> On Behalf Of Mark Tinka
Sent: Monday, July 8, 2019 10:40 AM
To: nanog () nanog org
Subject: Re: QoS for Office365



On 2/Jul/19 23:18, Joe Yabuki wrote:

> Hi all,
>
> How do you deal with QoS for Office365, since the IPs are subject to 
> changes ?
>
> How can we mark the trafic while keeping the security (I fear the 
> marking based on TCP/UDP Ports since they are not without an 
> additional risk coming from worms/virus using those ports for example, 
> and doing that directly on the PCs doesn't seem to be the best solution) ?

Funny, I was just answering an internal question about this, last week.

As with all things Internet, my stance is if you don't have end-to-end control, trying to do QoS is pointless.

That said, I believe it should be possible to apply some kind of meaningful, end-to-end QoS together with Microsoft if 
you took up one of their Express Route services, given that is considered a private, premium service.

Mark.