[c-nsp] PE "Sprawl" - P/Core Router suggestions.

Fri Dec 30 08:49:00 EST 2016

I have an NCS-5501 in the lab (SE unit, non-SE not available for
demo.) Working OSPF, MPLS, MP-BGP, L3VPN etc. No production experience yet.

I am looking at the NCS-5501 for a high performance dense 10G P/PE (no CE
involved.) Looking at NCS-5502 for dense 100G P.

I think the NCS-5500 platform is attractive. Reminds me of the C6K/C7.6K
but running IOS-XR.

On Thu, Dec 29, 2016 at 7:16 PM CiscoNSP List <CiscoNSP_list at hotmail.com>
wrote:

> Hi Phil - We currently run MPLS/OSPF/BGP...predominantly selling L3VPN
> services (And also vanilla Inet) - No intention of running user services on
> the new core, all will be on the PE's...The 5501 does look very
> nice...havent seen pricing on them yet...ball park "double" the price of
> the 5001?
>
>
> Im hoping someone on the list has used (Or is using) the 5000/5500 - As
> they are very new, stability is a concern - Cheers
>
>
> ________________________________
> From: Phil Bedard <philxor at gmail.com>
> Sent: Friday, 30 December 2016 1:19 AM
> To: CiscoNSP List; cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] PE "Sprawl" - P/Core Router suggestions.
>
> What kind of protocols are you running on the network?  What’s the
> likelihood of running some user services or more advanced features on the
> new “core” boxes?   Cisco gear the NCS 5501 would probably be my choice,
> it’s substantially less expensive than the 5502 if you don’t need the 100G
> density or still need to support 1G.  The low scale version of the box
> would probably fit your needs fine, and they’ve made enhancements in 6.1.2
> where the low scale versions can fit an Internet table now if need be.   On
> the lower end that’s a bit tougher but the price point on the 5501 may be
> low enough it makes sense to use it everywhere.
>
> Phil
> -----Original Message-----
> From: cisco-nsp <cisco-nsp-bounces at puck.nether.net> on behalf of CiscoNSP
> List <CiscoNSP_list at hotmail.com>
> Date: Tuesday, December 27, 2016 at 23:04
> To: "cisco-nsp at puck.nether.net" <cisco-nsp at puck.nether.net>
> Subject: [c-nsp] PE "Sprawl" - P/Core Router suggestions.
>
>     Hi Everyone (Apologies in advance for the long post :) )
>
>
>     We have multiple POPs, of varying sizes, no true "core"....due to size
> initially(# of customer tails @ POPs), collapsed design was used to reduce
> capex/improve ROI.
>
>
>     Hardware currently used are ME3600's/ASR920's/ASR1Ks(LNS/Transit), and
> TOR switches 4900's, Nex3Ks
>
>
>     Primary service offering is L3VPN, and as we aggregate with a large
> number of carriers, customers can pick/choose tails to suit
> budget/bandwidth/sla's etc
>
>
>     Interpop connections are currently going into our ASR920's, and as
> they have a limited # of 10G ports(4), we are having to add more ASR920's,
> purely for 10G...not ideal, not scaleable, and increasingly difficult to
> manage.
>
>
>     So, looking to put a more modular(Hierarchical two-layer - "core" and
> "aggregation" ) design in place, that is easily
> replicable/templated/flexible.
>
>
>     Hardware (Cisco house) - Ive looked at so far:
>
>
>     ASR9001 for our larger POPs, but 10G port density on them is an
> issue...4 onboard, and they only support the 4 port 10G MPAs(2 line card
> slots, so 2 of these)....so total 12 x 10G?
>     ASR1K - I see they have released the 1001/2-HX with the 1002 having an
> EPA slot - So, 8 x 10G onboard, and with an EPA 10x10G a total of 18 x 10G
> ports - but as these are very very new, Im guessing very pricey?
>     NCS - Very new, and know very little about them - NCS5001/NCS5002 -
> 10G port density definitely not an issue(40 + 80)...but they are an "MPLS
> agg router"...So, potentially an option if we went BGP-free "core"?
>     Then we have the bigger "chassis" brothers of the ASR9K/1K and
> NCS...all being a lot more $, and taking up a lot more real-estate in the
> Rack..
>
>     ASR9001 - "looked" like an ideal candidate, but the limited number of
> 10G ports is an issue
>     ASR1K - 1002-HX - Looks fantastic, but I would imagine very big $ if
> fully populated with 10G ports
>     NCS - Unsure on these as they are very new, and docs on them are a
> little sparse...i.e. Could they be an option, if we went BGP-free in the
> core?
>     Other Options?
>
>
>     Then for our smaller pops (that have 2-4 ASR920's(PEs) - Core/Agg box
> for these is quite a challenge...we would still need something with 10x10G
> ports to give us scale(PEs) and also for Interpop....any suggestions here
> would be greatly appreciated :)
>
>
>     For our "larger" POPs, where we will see 6+ (ASR920's) PEs - Dual 10G
> connectivity to the 2 Core/Agg routers will quickly burn lots of ports (As
> well as the needed Interpop connections) - Are mini PE "rings" an
> option...i.e. maybe 4 x ASR920's, east-west connected, with just 2 having
> 10G to the core/Agg?
>
>
>     Appreciate any suggestions/comments/recommendations  - Cheers
>
>
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