[AusNOG] NBN Q

[paul+ausnog at oxygennetworks.com.au]

This is a really common problem Tony, especially when you start working with the faster services, complaints about EU’s not able to reach full speed or stability at full speed seem to be way too common because of buffering issues, it always makes the provider look bad and CPE choice is really important.
 
 Also NBN has a lot to answer for quoting L2 speeds to EU’s in their advertising campaigns when it’s just not achievable, all you get is people doing speedtests 20 times a day which doesn’t help anybody.
 
Regards
Paul
 
From: Tony [mailto:td_miles at yahoo.com] 
Sent: Wednesday, 14 October 2015 10:57 AM
To: paul+ausnog at oxygennetworks.com.au; 'Tim Jones'; ausnog at lists.ausnog.net
Subject: Re: [AusNOG] NBN Q
 
What NBN are doing is the same as every other carrier out there (policing, not shaping). We have more trouble with services from another carrier that are terminated using an MRV brand CPE device that has exceedingly small buffers for any kind of bursts and seems to choke when you go over the burst parameter so that instead of getting policed to the correct speed, you get about 10% of the speed until it recovers a few seconds later.
 
 
regards,
Tony
 
 


From: "paul+ausnog at oxygennetworks.com.au" <paul+ausnog at oxygennetworks.com.au>
To: 'Tim Jones' <tim at iseek.com.au>; ausnog at lists.ausnog.net 
Sent: Wednesday, 14 October 2015, 8:38
Subject: Re: [AusNOG] NBN Q
 
Yep, ISP is responsible for CVC and AVC shaping, NBN just drop packets like a bitch !
 
Regards
Paul
 
 
From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Tim Jones
Sent: Wednesday, 14 October 2015 9:28 AM
To: ausnog at lists.ausnog.net
Subject: Re: [AusNOG] NBN Q
 
This is correct. NBN Co moved from queuing to policing some time ago. They advise access seekers should be performing per AVC and CVC shaping, otherwise you will experience throughout performance degradation.
 
There is a good NBN Co technical document “Queue to Policer based QOS Migrations - Consequences for EU Throughput” that you should be able to get from NBN Co or your  NBN wholesale partner.
 
Cheers,
Tim
 
 
From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Philip Loenneker
Sent: Wednesday, 14 October 2015 8:53 AM
To: ausnog at lists.ausnog.net
Subject: Re: [AusNOG] NBN Q
 
As a kind of side note to this, I’ve heard that the traffic shaping method by NBN Co is less than ideal (I recall something about dropping packets instead of queuing but can’t remember details), and that ISPs should put traffic shaping rules on their own equipment to avoid performance issues on the links. I did a bit of a Google on the topic but am probably using the wrong terminology to find anything useful. Does anyone have any more information they could share on this?
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