[c-nsp] LNS Alternatives

CiscoNSP List CiscoNSP_list at hotmail.com
Mon May 23 05:03:41 EDT 2016


Cheers James - We need them all(5), as our POPs are geographically VERY far apart lol......majority of our customers are eth based, and use DSL as either redundant link, or where eth/fibre not available.......unfortunately, they make a HUGE noise re latency(They are VERY latency conscious!)  when we tried a single LNS setup...i.e. All DSL tails terminating on the one LNS.....as an example, 2 sites, 1 kilometre apart, latency was over 120m/sec..if we had an LNS at that POP, latency would have been 30ish....hard pill to swallow, but when the noisy customers are spending lots of $ with you, it's best to keep them happy.

Regarding features and the "X" range...Ive played a bit now with our Lab 1006, and yes, definitely some "challenging"(insane!) differences between them and the 7200....geez the stupid no compression thing,  some reply attributes cause the ASR to use full VAI, which causes it to fail also, qos pre-classify under virt template also causes ASR to use full VAI(Again, causes it to fail).....damn, Cisco loved making the transition from 7200->ASR an easy one lol......Are there even more things I need to be aware of with the old 1001 vs the 1001-X series?(From your e-mail, sounds like there is?)

Thanks very much for your notes+links....Ill be reading them tonight :)

________________________________________
From: cisco-nsp <cisco-nsp-bounces at puck.nether.net> on behalf of James Bensley <jwbensley at gmail.com>
Sent: Monday, 23 May 2016 6:32 PM
To: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] LNS Alternatives

> we are only doing ~2-3000 tails....but to do the same on an ASR1K....whoa! price is a killer.

At this level you only need two boxes with the correct broadband
licenses (not the 5 originally mentioned, unless you have some other
requirements relating to geo-diversity or backhaul connectivity).

I recommend you advoice the ASR1002-X if possible. There seems to be
various features in the ASR1000 range that aren't support on the
1002-X only.

We have some live ones, they work OK, but we also have some 7200s too!
These are some rough notes I made during the initial testing, many
problems:

https://null.53bits.co.uk/index.php?page=asr-ios-xr-lns-config

https://null.53bits.co.uk/index.php?page=adsl-and-lns-shaping-llq

Cheers,
James.
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