[AusNOG] NBN PPPoE Sessions

[Matt Carter]

Hi Graham,

I can’t see there would be limit on the number of PPPoE you want to do that’s up to you but there is a limit of 8 MACs.

It’s in the NFAS under 5.1.1.4.3

5.1.1.4.3 MAC Address Limitations
Each UNI-D is capable of supporting up to eight simultaneous MAC source addresses. This imposes
a limit on the number of layer 2 devices that a Customer can connect directly to a UNI-D. Any attempt
to connect a number of devices directly to a UNI-D that exceeds this limit will result in traffic from the
newly-attached devices being discarded.
The NBN Co Network will learn the first eight MAC source addresses detected at ingress to the UNID,
based upon ingress service frames. A MAC address ageing function ensures that any obsolete
MAC addresses are removed from the active list, after a period of 300 seconds.
Note that this limitation applies for the UNI-D irrespective of the service type and does not imply MAC
address-based forwarding for unicast services based on 1:1 VLANs.
A Customer must use a layer 3 device to interconnect to the UNI-D. If the Customer does not do so,
the customer accepts the consequences of any issues arising from MAC address restrictions


http://www.nbnco.com.au/content/dam/nbnco/documents/nfas-product-technical-specification-v3.pdf


From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of gmaltby+ausnog at iig.com.au
Sent: Tuesday, 23 February 2016 3:56 PM
To: ausnog at lists.ausnog.net
Subject: [AusNOG] NBN PPPoE Sessions

Hi,

Does anybody know if there is an upper limit on the number of concurrent PPPoE session possible on a single NBN NTD port?  Specifically, NTD UNI-D connects to a switch which then has several routers each establishing their own PPPoE session.

Is there a limit on the number of sessions?  MAC address?  I'm sure it is documented somewhere but so far, I have not been able to find it.

Thanks,
Graham

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