[c-nsp] LNS Alternatives

[Nathan Ward]

> On 22/05/2016, at 12:48, Charles Sprickman <spork at bway.net> wrote:
> 
> 
>> On May 21, 2016, at 8:32 PM, CiscoNSP List <cisconsp_list at hotmail.com> wrote:
>> 
>> Hi Everyone,
>> 
>> 
>> We have around 5 POPs that need to terminate DSL tails, so require LNS - historically, we have done this on 7200's, now with 7200 basically EOLd, we are looking at the ASR1K's, but the broadband licensing on them is heinously expensive...Just wondering what others are using as an alternative?  We make very little margin on DSL tails, so if we had to go down the path of ASR1K/Broadband license it would take a very very long time to recoup license costs.
>> 
>> 
>> Ive had a hunt around for Linux-based options, but all the ones Ive found are from quite a few years back, and dont appear to be under active development?
> 
> Vaguely OT, but FreeBSD with mpd5 seems to be a common option for this.  I would imagine if you could fit all your users on a 7200, you could terminate at least that many on a current generation server.
> 
> A quick example config:
> 
> https://sourceforge.net/p/mpd/discussion/44693/thread/8038e404/


Hi Charles,

I’ll throw in a vote for mpd5 here as well, as a cheap alternative if you’re doing basic stuff. Not great if you need to drop people in to multiple VRFs and so on, but more than fine for Internet access.

Check out http://mpd.sourceforge.net/doc5/mpd30.html <http://mpd.sourceforge.net/doc5/mpd30.html> for details on how to do most of the things you’d want with it, triggered by RADIUS. Not mentioned there, but CoA is supported for many attributes, also.

Compression, mentioned recently, is supported. I’ve not seen anyone doing that in broadband networks in quite a while though.

--
Nathan Ward