nanog mailing list archives
Re: IP DSCP across the Internet
From: Mike Hammett <nanog () ics-il net>
Date: Thu, 7 May 2015 06:46:00 -0500 (CDT)
That sounds like a rather poor implementation. What if they had more than one VoIP call? Seems like this thread has more FUD than real examples. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com ----- Original Message ----- From: "Mikael Abrahamsson" <swmike () swm pp se> To: "Mark Tinka" <mark.tinka () seacom mu> Cc: "nanog list" <nanog () nanog org> Sent: Thursday, May 7, 2015 4:32:52 AM Subject: Re: IP DSCP across the Internet On Wed, 6 May 2015, Mark Tinka wrote:
With color-aware policing toward a customer in Uganda, any traffic coming from that peer in South Africa was getting dropped toward that customer in Uganda. After a very odd sequence of troubleshooting events, we found that the AF DSCP alues being set by the peer in South Africa (and us passing them due to the old kit not being able to remark on ingress) was causing the color-aware policer in Uganda to drop traffic toward the customer there.
I have heard similar stories where game traffic ended up in a 100 kilobit/s VoIP queue which worked fine until there were a lot of nearby players in the game, then things started working very badly. Also nice corner case :P So yes, setting all external Internet traffic to DSCP=BE (0) is something one wants to do. -- Mikael Abrahamsson email: swmike () swm pp se
Current thread:
- Re: IP DSCP across the Internet, (continued)
- Re: IP DSCP across the Internet Joel Mulkey (May 06)
- Re: IP DSCP across the Internet Roland Dobbins (May 06)
- Re: IP DSCP across the Internet Joel Mulkey (May 06)
- Re: IP DSCP across the Internet Tim Jackson (May 05)
- Re: IP DSCP across the Internet Blake Dunlap (May 05)
- Re: IP DSCP across the Internet James Bensley (May 07)
- Re: IP DSCP across the Internet Mark Tinka (May 07)
- Re: IP DSCP across the Internet Jay Hennigan (May 08)
- Re: IP DSCP across the Internet Blake Dunlap (May 05)
- Re: IP DSCP across the Internet Mark Tinka (May 05)
- Re: IP DSCP across the Internet Randy Bush (May 05)
- Re: IP DSCP across the Internet Mikael Abrahamsson (May 07)
- Re: IP DSCP across the Internet Mike Hammett (May 07)
- RE: IP DSCP across the Internet John van Oppen (May 07)
- RE: IP DSCP across the Internet Charles Wyble (May 06)