[AusNOG] NBN Q

[Chris Gibbs]

I typically police on the CVC aggregate, shape on the customer vlan and
shape on the CPE device.

At least I knew when drops were occurring and did not have to bother NBN Co.

The NFAS technical guide has all this information in it if you have a
little time on your hands to have a read. I found it an excellent resource.

On 14 October 2015 at 08:58, Joseph Goldman <joe at apcs.com.au> wrote:

> 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
> <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> <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
> <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
> <paul at oxygennetworks.com.au>]
> *Sent:* Wednesday, 14 October 2015 8:05 AM
> *To:* Dino Sosic <Dino.Sosic at datacom.com.au>; 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
> <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
> *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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