VPLS versus MPLS
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Transcript of VPLS versus MPLS
INTECHNOLOGY /WHITE PAPER /
mANAGEd mPLS vs WIRES ONLY vPLS /
OCT 2010 / v1.0
WE NEEd TO FOCUS ON SELLINGINSURANCE, NOT mANAGING OUR INFRASTRUCTURE /
RICHARd CORNER / GROUP OPERATIONS dIRECTOR GILES INSURANCE /
dO YOU REALLY KNOW WHAT YOU ARE BUYING /
As technologies both VPLS and MPLS offer a number of business benefits. However, there are key operational differences between the two, and the old adage stands – ‘do you really know what you are buying’?
The two technologies are marketed in different guises which makes like-for-like comparison difficult and sometimes confusing. However, it can be made simple. Put the technology and the acronyms to one side for a moment, close your mind to marketing spin and think in terms of business benefits and total cost of ownership. Then question one fundamental point - will your business gain most from a fully managed IT and Comms delivery model (based on mPLS architecture) or a ‘wires only’ dIY service based on vPLS?
It’s true that in our simplified take on things ‘managed vs dIY’ is one comparison of the deployment options of both technologies. But it’s one of the most topical and one of the most important.
So with VPLS marketed as the next big thing we ask ‘is it?’ And ‘is it right for you?’
In some respects it’s a case of ‘read the small print.’ vPLS is in fact Layer 2 technology and has been available in various iterations for many years. It runs over mPLS which is Layer 3 and altogether more flexible. So which is the newest and which is best? Well, let’s again put the acronyms to one side and focus on some straightforward business considerations to assist decision making.
AFFORDABILITYVPLS tends to be marketed at an attention grabbing, affordable price. But so are the low-cost airlines. How quickly does that £19 weekend escape to Barcelona escalate?
Add airport tax, add a charge for your luggage, add your in-flight meal, add your seat reservation fee. It goes on. We press submit, the cogs turn, and the cost rather sneakily rises tenfold. It’s not a great experience. So now let’s think about this in the context of managed Service versus wires only vPLS.
The vPLS model promoted by some technology consultants and system integrators can have a nasty catch - spiralling price. The seemingly innocuous menu of pay-as-you-go extras including design, delivery and ongoing support can transform ‘cheap to costly’ in double quick time.
Overheads, for example, will have to include expensive in-house Cisco CCIE accredited network engineers and monitoring software to manage what at the end of the day may be a complex solution. Failing that, the expertise can be outsourced at a frightening hourly rate. These hidden costs increase the risk of budget variance and in an already uncertain economic climate this is a risk too far for many businesses.
By comparison, the Managed Service Model of the UK’s leading providers is fundamentally different. It delivers budget predictability, complete transparency and a full support wrap. No nasty surprises. No unexpected spend.
A wires only service is precisely that but many businesses fail to plan for the hidden costs that will inevitably follow further downstream.
RELIABILITY
In a climate where business continuity and
system resilience is all important, consider too
the fact that vPLS relies on static routing. The
meshed, managed mPLS architecture of leading
service providers is dynamic, self-healing and
automatically re-routes in the event of fibre
break. Consider therefore the time to fix vPLS
and the hidden costs of potential downtime
and engineering costs.
SCALABILITY
As a Layer 3 technology, mPLS will scale more
easily than the capped Layer 2 attributes of
vPLS. An important consideration for growth
hungry business. While it’s true to say that
vPLS can be developed to Layer 3, it involves
additional cost which largely mitigates the
original price differential between the two
technologies.
There is one other fundamental consideration.
While the current economic climate signals
pain for many it also provides strong growth
opportunity for acquisition driven businesses.
This is where the flexibility and ease of
scalability of the mPLS based managed Service
model scores particularly well.
BEYOND THE WAN
In an age of austerity it is sometimes too easy
to ‘knee-jerk’ to the marketing message of
low cost. But buyer beware. Not only should
you fully consider hidden charges and total cost of
ownership issues, but more importantly, technology
advisors should also look beyond the WAN.
Pause before you commit your board and your
business to a path which you may live to regret.
Fully consider where you will be, or want to be
in 18 months’ time.
Ask your Support Partner some basic questions.
In 18 months when your telephone system
(PBX) is life expired or needs a software
upgrade, what are your options? In 18 months
when your server room infrastructure needs
overhauling how much is it going to hurt? In
18 months when your travel and subsistence
budget is under extreme pressure and the
business suddenly appreciates the huge cost
saving benefits of Unified Comms (video calling,
desktop sharing and more) as a cost effective
mechanism for avoiding trains, planes,
automobiles and hotels, will it be too late?
The list goes on.
So is there a solution in vPLS? Yes. But drill
into the detail and really understand how
challenging that could be with the
complexities of N-1 considerations (everything
connected to everything else). Then consider
the alternative solution offered by the mPLS
based managed Service Provider: a solution
that cleverly uses the WAN (the cloud) as
a seamless upgrade path to hosted
services - voice services, data services, Unified
Comms and more. All underpinned by a
support infrastructure whose very
reason for existence is to unburden
you of technology heartache. Easy to
access, immediately available and
monitored 24 hours a day, every day.
Simplicity in a complex world.
Pause before you commit your board and your business to a path which you may live to regret. Fully consider where you will be, or want to be in 18 months’ time.
SUMMARY
So do the benefits of vPLS add up? For some
businesses with big IT departments and
expensive network experts it may be
possible to argue the case. But for the bulk of
forward looking mid-tier, multi-site businesses
who are looking to run lean and efficient IT
operations it makes complete sense to opt
for the managed Service model and the
flexibility of mPLS architecture.
In life there is often resistance to change. And
it’s fair to say there is ebbing resistance to the
managed Service model too. That resistance
however has little to do with the technology.
It works and works well. The unspoken brutal
truth of the matter centres on self preservation
– ‘how will this affect my job’.
However, as King Canute himself discovered
you cannot hold back the tide. In this case
the tide is being driven by visionary IT heads
that do not see the outsourcing of IT and
Communications as a threat, but more as a
career and business development opportunity:
the potential to add real business benefit and
evolve, perhaps, from IT director to CIO. It is a
mature mindset that sees Blogs & Co as the
insurance sales company, not Blogs & Co as
the IT department.
In balanced debate the majority of mid-tier
businesses will continue to score managed
mPLS ahead of wires only vPLS. The tick box
of benefits and the simple logic of the pay-
as-you-grow licence model of the managed
mPLS service is difficult to dismiss. But more
than that it’s an acceptance by many that the
short term saving headlined by wires only
vPLS is heavily outweighed by the long term
future proofing and business agility provided by
managed mPLS service delivery models.
The banner message ‘Focus on the core sales
operation and let technology experts focus on
your IT and Comms delivery infrastructure’
resonates in a tough trading climate. It never
made more sense.
Finally, as you plan your way forward,
consider that not all managed Service
Providers are equal. Seek out those with their
own end-to-end next generation network;
identify those who can seamlessly layer
hosted services (voice services, data services,
Unified Communications and more); short
list those with secure funding, proven track
records and ask to visit their operation and
view their infrastructure first hand. You may
find that some managed Service Providers are
more equal than others.
Will ‘managed’ triumph over ‘unmanaged’? Will managed mPLS continue to dominate the network landscape over wires only vPLS. We think so. do not be deceived by the headline cheap price, expose the hidden support costs and understand the challenges with scalability, flexibility and reliability. And, above all, think beyond the WAN.
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