nanog mailing list archives

Re: QoS for Office365


From: Tom Beecher <beecher () beecher cc>
Date: Tue, 9 Jul 2019 11:07:28 -0400

That's already been happening. OpenSSH pulled that stunt in 7.8.

https://www.openssh.com/txt/release-7.8

 ssh(1)/sshd(8): the default IPQoS used by ssh/sshd has changed.
   They will now use DSCP AF21 for interactive traffic and CS1 for
   bulk.  For a detailed rationale, please see the commit message:
   https://cvsweb.openbsd.org/src/usr.bin/ssh/readconf.c#rev1.284




On Tue, Jul 9, 2019 at 10:50 AM Steve Mikulasik via NANOG <nanog () nanog org>
wrote:

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.



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