Applications of MPLS in the metro area

Tue Apr 28 18:13:14 UTC 2020

I started poking around to learn more about these use cases and came
across this
interesting extract
<https://www.juniper.net/us/en/products-services/routing/acx-series/datasheets/1000397.page>
:

"Juniper Networks® ACX Series Universal Metro Routers are Juniper’s
response to a shift in metro network architecture, where the access and
aggregation layers are extending the operational intelligence from the
service provider edge to the access network."

Not long ago, I used to think of anything above layer 2 as "service
provider edge" and further still (away from access), but the responses I've
garnered are pointing at a metro network that widely implements MPLS and
access and aggregation segments that are seeing implementation of L3
functions.

Etienne

On Tue, Apr 28, 2020 at 7:45 PM Aaron Gould <aaron1 at gvtc.com> wrote:

> Yeah, I forgot earlier but I’m using EVPN/MPLS for DC interconnections now
> also, for nicely integrating L2/L3 and host/machine level route preference
>
>
>
> MPLS in some ways is reminiscent of the ability to fire-off Smart-PVC’s
> (SPVC/P) over an ATM (asynchronous transfer mode) network, and thus achieve
> end to end virtual private connectivity without touching the intermediate
> nodes (p nodes)…. Since the p-nodes just do label swapping (like vpi/vci
> swapping in the atm analogy)
>
>
>
> In actuality, many of my “p” nodes, are also “pe” nodes  J  it’s all
> about what it’s doing at that moment for what it is that we are talking
> about
>
>
>
> -Aaron
>
>
>
>
>
> *From:* NANOG [mailto:nanog-bounces at nanog.org] *On Behalf Of *
> adamv0025 at netconsultings.com
> *Sent:* Tuesday, April 28, 2020 10:46 AM
> *To:* 'Etienne-Victor Depasquale'; 'NANOG'
> *Subject:* RE: Applications of MPLS in the metro area
>
>
>
> Hi,
>
> So where the books talk about PEs -think of your metro nodes here
> (basically converting the metro into an MPLS network -or making it part of
> your existing MPLS core) (you might not have a classic design where PEs
> hang off of P-Core nodes and might have just rings of PEs in your metro
> area)
>
> And where the books talk about various L3VPN and L2VPN services that’s
> basically what you can offer over your metro -now that it’s been converted
> to a fully-fledged MPLS network.
>
> Ranging from multicast L3VPNs for 3PALY services through L2 p2p|p2mp|mp2mp
> services for Dat-Center-Interconect, to network-slicing buzzword (cause
> with VRFs and Traffic Engineering you can slice your metro area network
> whichever way you like).
>
>
>
> adam
>
>
>
> *From:* NANOG <nanog-bounces at nanog.org> *On Behalf Of *Etienne-Victor
> Depasquale
> *Sent:* Tuesday, April 28, 2020 2:44 PM
> *To:* NANOG <nanog at nanog.org>
> *Subject:* Applications of MPLS in the metro area
>
>
>
> Hello !
>
>
>
> I'm looking for what a network operator would consider a realistic
> reference deployment of MPLS within the metro area network.
>
>
>
> By "realistic reference", I'm asking about what a network operator would
> consider to be a typical, perhaps most common, application of MPLS
> technology.
>
>
>
> From a bookish perspective, I understand MPLS well but have never
> implemented it in the scope of my current field of study (metro area
> networks). I would dearly like to get this "grounded" perspective from
> anyone who might care to share it.
>
>
>
>
>
> Cheers,
>
>
>
> Etienne
>
>
>
> --
>
> Ing. Etienne-Victor Depasquale
> Assistant Lecturer
> Department of Communications & Computer Engineering
> Faculty of Information & Communication Technology
> University of Malta
>
> Web. https://www.um.edu.mt/profile/etiennedepasquale
>

-- 
Ing. Etienne-Victor Depasquale
Assistant Lecturer
Department of Communications & Computer Engineering
Faculty of Information & Communication Technology
University of Malta
Web. https://www.um.edu.mt/profile/etiennedepasquale
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