[AusNOG] DSCP on internet services

[Phillip Grasso]

do you have distribution of the values, netflow should dump 8 bit value in
hex/decimal

i'm interested to know if it's spitting out a decimal value of between 01-03
(signifying ECN bits) or would it be the 'precedence' of 6 & 7 on the
network control level?

Its an  interesting academic question as to see how well would ECN be
supported across internet.

On Wed, Feb 17, 2010 at 6:46 PM, Craig Meyers <Craig.Meyers at citec.com.au>wrote:

>
> FYI
>
> Today as an example, on our netflow stats we receive 1-2% traffic marked
> with something other than zero.
>
> So the odd non-zero flow gets through.
>
> -- Craig Meyers
>
> -----Original Message-----
> From: ausnog-bounces at lists.ausnog.net [mailto:
> ausnog-bounces at lists.ausnog.net] On Behalf Of McDonald Richards
> Sent: Wednesday, 17 February 2010 4:09 PM
> To: ausnog at ausnog.net
> Subject: Re: [AusNOG] DSCP on internet services
>
> Yeah - the Internet ones ;)
>
> Macca
>
>
> From: Phillip Grasso [mailto:phillip.grasso at gmail.com]
> Sent: Wednesday, 17 February 2010 5:00 PM
> To: McDonald Richards
> Cc: Raymond, Adam; ausnog at ausnog.net
> Subject: Re: [AusNOG] DSCP on internet services
>
> I'm assuming your resetting dscp to 0 from your customers as well?
>
>
> On Wed, Feb 17, 2010 at 4:28 PM, McDonald Richards <macca at vocus.com.au>
> wrote:
> Agreed. Standard practice at every place I've worked has been to remark
> DSCP to 0 on ingress for all "Internet" traffic.
>
> Macca
>
>
> From: ausnog-bounces at lists.ausnog.net
> [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Phillip Grasso
> Sent: Wednesday, 17 February 2010 4:17 PM
> To: Raymond, Adam
> Cc: ausnog at ausnog.net
> Subject: Re: [AusNOG] DSCP on internet services
>
> sorry let me be clear,
> resetting dscp bits to 0 (or other internal classify for best effort) is
> normal for large ISP's with internal qos policies. proper behaviour is to
> leave last two bits alone for ECN, but I doubt ecn bits are passed across
> the internet freely.
> On Wed, Feb 17, 2010 at 3:56 PM, Phillip Grasso <phillip.grasso at gmail.com>
> wrote:
> My understanding that is the de facto standard for most large SP's .
> Especially if they run their own qos policies internally.
>
> On Wed, Feb 17, 2010 at 3:42 PM, Raymond, Adam <Adam.Raymond at nn.com.au>
> wrote:
> All,
>
>             I am wandering if other networks modify the DSCP of internet
> customers when they receive the traffic from the customer (such as resetting
> it to BE for all traffic). What is seen as being "best practice" for this
> operation.
>
> Regards,
>
> Adam Raymond
>
> IP Project Engineer
> NextGen Networks
> www.nextgennetworks.com.au
> Direct:   03 8623 3638
> Level 6, 333 Collins St
> Melbourne  VIC  3000
>
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