[afnog] Bridged Access Network

[Vincent Mwamba]

Thanks to all for this valuable information, i believed there is enough
info for us to use to have a scalable re-designed network.

Thanks

./Vinny


On Thu, Oct 10, 2013 at 12:51 AM, Mark Tinka <mark.tinka at seacom.mu> wrote:

> On Wednesday, October 09, 2013 04:11:10 PM Vincent Mwamba
> wrote:
>
> > 1. How will the DHCP be relayed over a layer 3 network
> > without MPLS or PPPoE?
>
> With DHCP for subscriber management, there are two typical
> options:
>
>         1. Run DHCP as a local service on the BRAS.
>
>         2. Run DHCP Relay from the BRAS toward a DHCP server
>            located somewhere in your core network.
>
> Unless you're providing walled-garden services (like VoIP,
> IPTv, VoD, e.t.c.), MPLS is not necessary for subscriber
> management.
>
> > 2. when we migrate to Layer 3, do we have to have a
> > gateway for each service we terminating at the high
> > sites? the reason am asking is we have about 30 high
> > sites in a city offering all our various services. How
> > should we manage the IP addressing per high site or per
> > service and where do the customers terminate as their
> > gateway.
>
> If by "per service" you mean per customer, then the quickest
> win will be to break each customer down to a VLAN, and offer
> IP services to them on individual VLAN's at the nearest IP
> router sitting on the back of the trunk to the site.
>
> If you can afford 30x routers, one for each site, your life
> will be simple. If you can't, you can deploy a handful of
> routers as far as your budget permits, and aggregate the
> sites across those routers accordingly.
>
> All that said, you'd still do well to look at features on
> the WiMAX network that can help control broadcasts and
> broadcast storms, as well as implementing storm control
> where possible.
>
> Mark.
>
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