SDWAN-vs-MPLS Advantages and comparision PPT

SDWAN

1. SD-WAN vs MPLS

2. Why SD-WAN has Emerged -Growing network requirements
Business expansion requires additional
interconnections from the site to data
centers
1980s to early 2000s leased lines were
the most used circuit technologies
Every site was connected to a
dedicated virtual circuit via a carrier
network.
Drawbacks of leased lines:
•Expensive to set up, maintain, and
configure.
•Consumer had to create their
routing over circuits
•Entailed significant investment of
resources and time
Starting 21st century MPLS emerged:
•Worked like the ATM service over
IP networks
•It was more cost-effective on
•Source to destination label-
swapping along a predetermined
path used fewer resources
•Reduced operational &
maintenance costs
•MPLS became a corporate
standard for years
Present Scenario:
•Increasing WAN requirements
•Corporate world is moving to
cloud-based services
•Several applications need to pass
through a public network outside a
company’s data centers.
Need of the hour:
•Innovative technology allowing
secure and intelligent transport
•Keeping costs to a reasonable level
•SD-WAN emerges
•Relatively new cloud-ready
solution
•Can handle today’s network
requirements
•Deliver the efficiency
•Promotes better user experience

3. How SD WAN is better for interconnecting sites?
Drawbacks of MPLS:
•MPLS shared resources with the carrier network
•Led to oversubscription reduced actual bandwidth
•Service Level Agreements or SLA became a staple
•Virtual Private Networks (VPN) reinforced security
•VPNs worked with public internet
•Delivered “best-effort” interconnection model
•Unguaranteed coordination between routers across the
path
•Even faster internet plan wouldn’t certify high
performance
•No network availability guarantee
How SD-WAN is better:
•Leverages less expensive public internet tunnels -DSL,
broadband, or LTE
•Forward Error Correction or FEC -multiple copies of
the data packet are transported automatically through
several circuits
•Ensures traffic gets sent successfully

4. How MPLS is better for cloud interconnectivity?
MPLS Capabilities:
•MPLS VPN provides:
•High-speed
•Reliable circuit
•Data centersrequire
•higher levels of quality
& acceptable latency,
•A robust MPLS
circuits
•SLA-backed MPLS
Cloud Interconnectivity
Requirement
•High speed
•Reliability
•Cloud service providers
meet these requirements,
•Customers only need to
buy the capacity and
resources for cloud-
based applications.
Interconnecting Private
Networks To Cloud
•Involves more
sophistication
•A private MPLS
connection is more
suitable for
•linking company’s
data centerto the
cloud network
Why Not SD WAN?
•Relying solely on SD-
WAN:
•Can hinder the
infrastructure from
optimum performance
•Can’t satisfy network
requirements
•Can’t optimizes user
experience

5. SD WAN vs MPLS –A 4-point Comparison

6. Availability & packet loss –Each has its advantages
•MPLS:
oProvides high Quality of Service
oManages packet loss efficiently
oValuable for
✓VoIP (Voice Over IP)
✓Virtual desktops
✓Video conferencing
✓Other real-time protocols
oWorks via shared infrastructure
oProvides predictable performance for packet
delivery
•SD WAN:
oDetects & reconstructs lost-in-transit packets
oEnsures throughput is maintained or
improved.
oAllows better configuration protocols for
packets
oPrevents traffic jams
oGrants high availability

7. •MPLS:
oRuns on shared networks
oSecurity still is its strong feature
oBuilt as a Closed User Group
oOnly the nodes in the network can
access & read data
•SD WAN
oPublic internet does not offer the
same security
oVulnerable to security holes and
breaches
Security –MPLS is better

8. Quality of Service –SD WAN is better
•SD WAN:
oSignificantly improved
packet delivery via the
internet
oUses two different
circuits
oUsers can use several
unique access paths
oAvoids packet loss
oFlexible & redundant
network solution
oOffers resiliency at half
the price

9. Connectivity –SD WAN is better
•MPLS:
oWorks over a private network
oData is typically not encrypted
oEnsuring efficient connectivity
requires in-depth knowledge
oRequires understanding OSPF,
BGP, & other technical parameters
•SD WAN:
oSD-WAN simplifies the network
design
oLeverages the internet
oSecures data transport via VPNs
oHas a centralized control function
with tunnelling
oImproves processes
oAllows faster connectivity than
MPLS.

10. SD-WAN ties everything together
MPLS
•Expensive legacy
infrastructure
•Not transformation-ready
•Was beneficial when special
hardware for encrypted
traffic was ridiculously
expensive
•Securing high volumes of
data could be a challenge
through SD WAN
•General-purpose CPUs
struggle to encrypt multiple
gigabit-per-second traffic
SD-WAN
•Provides traffic encryption
•Enables using public internet
as a transport circuit
•Cost-effective model
•Can handle traffic
adequately.
•Continuously being
developed to meet the
limitations of private MPLS.
Which to Choose?
•Corporations requiring
strictly high levels of
performance could still
benefit from MPLS’
reliability
•SD-WAN solutions can
work using MPLS circuits to
reinforce the performance
and availability
•SD-WAN is transport-
agnostic -it can be an
overlay to an existing MPLS
infrastructure.

11. How SD-WAN overlay offers complimentary connectivity
Improves the
MPLS efficiency
Allows traffic
routing to the
best path
Offers low
latency & high
performance
Business-critical
traffic is still
routed via MPLS
TransportsLow-
priority applications
through cheaper
internet tunnels
Maximizes the
existing MPLS
investment
Provides
alternative
channels –Cloud
Services
Ensures
redundancy
Minimizes
MPLS costs
Together, they can
protect data
integrity
MPLS’ private
network is virtually
untouchable to
hackers
SD-WAN can
encrypt data
MPLS is a
component of the
connectivity design
SD-WAN is useful
for traffic
management
They are
complementary
technologies
SD WAN Benefits Overlay Benefits

12. •A hybrid network model is the
best
•It overlays SD-WAN on MPLS
•Offers reliability of MPLS and
WAN optimization of SD-
WAN
•Lower operational costs
•Higher performance.
•Choose the right partner for
merging both technologies
Verdict –Which to choose?