[AusNOG] NBN Q

[Joseph Goldman]

You are correct, from what I have heard. They 'Police' the link rather 
than 'Shape' the link, i.e. once the AVC limit is reached (12/1, 25/5 
etc), the packets on top are dropped rather than queued for delivery. 
This means NBNCo's routers would have to do a lot less work, so to avoid 
packet loss, dropped packets etc for customers who max out their link it 
is a good idea to do queuing on your own termination end.

On 14/10/15 08:52, Philip Loenneker wrote:
>
> 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?
>
> *From:*AusNOG [mailto:ausnog-bounces at lists.ausnog.net] *On Behalf Of 
> *paul+ausnog at oxygennetworks.com.au
> *Sent:* Wednesday, 14 October 2015 8:40 AM
> *To:* 'Dino Sosic' <Dino.Sosic at datacom.com.au>; ausnog at lists.ausnog.net
> *Subject:* Re: [AusNOG] NBN Q
>
> Sorry, meant to say AVC ID in the last bit J
>
> Regards
>
> Paul
>
> *From:*Dino Sosic [mailto:Dino.Sosic at datacom.com.au]
> *Sent:* Wednesday, 14 October 2015 8:38 AM
> *To:* Paul Julian; ausnog at lists.ausnog.net
> *Subject:* RE: [AusNOG] NBN Q
>
> Thanks guys. I thought it would be something like that, but not a lot 
> of info out there specific for NBN services. J
>
> *From:*Paul Julian [mailto:paul at oxygennetworks.com.au]
> *Sent:* Wednesday, 14 October 2015 8:05 AM
> *To:* Dino Sosic <Dino.Sosic at datacom.com.au 
> <mailto:Dino.Sosic at datacom.com.au>>; ausnog at lists.ausnog.net 
> <mailto:ausnog at lists.ausnog.net>
> *Subject:* RE: [AusNOG] NBN Q
>
> Hi Dino, some ISP’s do it different to others, some use PPPOE, some 
> use DHCP, it just depends on what they want to do.
>
> For an NBN directly connected ISP they take a VLAN from NBN for each 
> CVC on each POI they connect to, then each customer is allocated a 
> VLAN within the CVC VLAN, so you have layer 2 separation between 
> customers, really whether you use PPPOE or DHCP there is no difference 
> to separation, it’s a matter of choice for ISP’s, unless they use an 
> aggregator which only offers one option like Telstra Wholesale, at 
> present they run their wholesale NBN network over the top of their 
> retail NBN network, they only offer DHCP.
>
> Regarding the auth, there is no auth when using DHCP necessariy, but 
> you can use radius and DHCP to do it if you want, then just do the 
> accounting based on the IP they are allocated, you can also allocate 
> IP based on the CVC ID which is presented by NBN, you can set that up 
> as a radius check attribute so that you can control various aspects of 
> the session at connection time.
>
> Regards
>
> Paul
>
> *From:*AusNOG [mailto:ausnog-bounces at lists.ausnog.net] *On Behalf Of 
> *Dino Sosic
> *Sent:* Wednesday, 14 October 2015 8:28 AM
> *To:* ausnog at lists.ausnog.net <mailto:ausnog at lists.ausnog.net>
> *Subject:* [AusNOG] NBN Q
>
> Hi guys,
>
> Quick question about the NBN deployment. I am looking for a technical 
> answer here. Some NBN services give you a public IP via DHCP and they 
> push a default route with it. How are the customers separated and how 
> is the same IP leased to the same NBN endpoint every time? Is this 
> something that is different from ISP to ISP or? There is no auth on 
> the endpoint, and it can’t be the MAC either.
>
> I’m surprised how little people/engineers really know about the fine 
> works of NBN deployment. ( especially the ISP engineers )
>
> Thanks,
>
> Dino
>
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