mpls technology for enterprise network - ku.ac.th - paanob.pdf · 10.11.2008 · this slide...

Copyright © 2007 Juniper Networks, Inc. Proprietary and Confidential www.juniper.net 1Copyright © 2007 Juniper Networks, Inc. Proprietary and Confidential www.juniper.net 1

MPLS Technology For Enterprise Network

Net-day 2008 Paanob mahanarongchai

[[email protected]]

Copyright © 2007 Juniper Networks, Inc. Proprietary and Confidential www.juniper.net 2

AgendaMPLS Overview & Benefit

• Type of VPN service• Benefit of MPLS

MPLS Solution In EnterpriseSummary


Network Consolidation - Before

PSTN

IP

FR/ATM

Fibre Channel

Video / CCTV

ResilientLow latency

Best effort

Guaranteed delivery

Synchronous data

IsochronousHigh bandwidth


MPLS (Overview)

-Multiprotocol Support- Label Distribution Protocol (LDP)-Label Switch Router (LSR)- FRR and Flexible VPN Services

IP is an open asynchronous datagram protocolGood at its job but it was never designed to support:

SecurityQuality of serviceSynchronous workingIsochronous operation


A suite of VPNs to choose from including:Assured VPNs• Layer 3 MPLS

• 2547 based VPNs (BGP based)• Layer 2

• Kompella (BGP based), Martini (LDP based) VPLS (BGP based)

Secured VPNs• IPsec• SSL

Secured and Assured VPNs• Hybrid Layered scenarios• IPsec over MPLS

MPLS VPN Services

Presenter

Presentation Notes

This slide outlines the different VPN types that Juniper offers in its VPN toolkit. Assured VPNs are comprised of layer 3 and layer 2 VPNs. Secured VPNs consist of IPsec and SSL VPN solutions. Secured and Assured VPNs cover IPsec or SSL VPNs over MPLS.


MPLS VPN L3 (2547bis)


MPLS L2 VPNs


VPLS Virtual Private LAN Service


MPLS Interesting Feature• MPLS FRR• MPLS Traffic Engineer• MPLS QoS


Fast Re-Routing Constrained SPF can determine routes based on

required parameters

Primary LSPs

Bypass LSP



required parameters

Primary LSPs

Bypass LSP


MPLS TE and QoS

E-LSP

Maps multiple DiffServ

classes to 1 LSPProvides QoS within the LSP

Each class follows the same route

EXP inferred PHB scheduling class LSP

EF

AFBE


Benefits of MPLS Network Backbones

MPLS VPN AMPLS VPN BPhysical connection

Redundant MPLS connections (LSPs);

Failover in less than 50 msec

Backbone Router

Branch Router

Many VPNs

to transparently support many different groups

and protocols

Converged network with Classes-of-Service

supporting many different applications

#1

#3#2

Presenter

Presentation Notes

Deploying an MPLS backbone brings increased network scalability, while enabling convergence and circuit consolidation, network segmentation and network failover in less than 50 msec. An MPLS backbone brings together the end-to-end control of L2 networks with the flexibility and scalability of L3 networks. Rather than relying on IP packet forwarding, an MPLS network uses a simple indexing mechanism called a "label“ to direct traffic along a defined virtual network path. Unlike traditional L2 networks such as ATM and frame relay, the network can set up the end-to-end paths dynamically as needed. Carriers have deployed MPLS networks for years, and now many large enterprises are leveraging the same technology by building their own MPLS backbones, either overlaying private links or using MPLS services to setup MPLS tunnels. The advantages of the approach are many including the following. Converge and Consolidate Resources - MPLS enables higher utilization of network links in two ways: 1) Direct control over traffic paths to improve load balancing across parallel traffic routes and 2) Advanced QOS features applied to granular traffic sets to enable greater sharing of resources while maintaining application performance levels. Segregate Traffic - MPLS gives network managers a way to easily separate their network into multiple virtual domains to flexibly define the performance and security metrics required for specific applications and user groups - even different organizations each independently operating their own network. Complementing MPLS with IPSEC or other encrypted tunnels further enhances security levels. High Availability – With fast reroute capability MPLS networks recover from link failures in 50 ms or less – fast enough to preserve connections for VOIP calls, video links and other delay sensitive applications. Unlike competitive solutions that have only a lite version of the MPLS protocols in “enterprise class” equipment, sacrificing many advantages, Juniper has developed the full MPLS implementation across the routing product line. With Juniper, enterprises can now receive the same benefits of broad-based MPLS networks as the over 5 dozen carriers with Juniper-driven backbones today. JUNOS software has extensive support for MPLS including constraint-based routing, MPLS fast reroute and MPLS traffic engineering.


AgendaMPLS Overview & Benefit

• Type of VPN service• Benefit of MPLS

MPLS Solution in EnterpriseSummary


Key Of Implement MPLSConsolidationControlResiliency


1. Multiple network consolidation (ATM, FR, Private Line,…) <Finance Saving>

MPLS Solution in Enterprise


Network Consolidation

FR/ATM

PSTN

Internet

Dealer Network

Suppliers Network

Internet Network

Branch Network

Affiliate Network

IP/MPLS Integrated Service Network

Cost Saving!!!


Different Networks for Different Apps

Internet

PSTN / TDM

ATMSales

Mktg

AcctgOps

Sales

Sales

Mktg

Acctg

Ops

Ops

Presenter

Presentation Notes

Once upon a time there was one network, the PSTN, and we connected everyone to it. <click> Then we needed Internet, at least some roles did <click> And of course we also needed VPNs, which we usually made with frame relay or ATM. The trouble with doing things this way is that each of these separate networks has its own infrastructure, and hence costs – despite the fact that they are largely doing the same things. Once this was widely noticed, and we had a network that offered the ubiquity of the Internet, we all decided that running all these services on one network was a good idea. And so we converged into… <click to next slide>


MPLS supports virtualized convergence

Sales

Mktg

AcctgOps

Sales

Sales

Mktg

Acctg

Ops

Ops

IP / MPLS

Internet

ATM

VPNs

TDM

Presenter

Presentation Notes

What MPLS brings to the enterprise experience in this scenario is circuit-style virtualization that is consistent and predictable. This means that each user’s many different experiences can be managed and controlled, with appropriate policy, security, QoS, availability and other attributes – even though they all share the same network. And the further into the office premise MPLS can extend, the better that control can be.


Expenses

$-

$50,000

$100,000

$150,000

$200,000

$250,000

$300,000

$350,000

$400,000

$450,000

$500,000

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Quarters

Juniper MPLS ConvergenceEnterprise Un-converged

OpEx

of existing networksOpEx

of converged MPLS network

ROI occurs within 8 months

Enterprise TCO Analysis: Converged Network Solution


- Multiple network consolidation (ATM, FR, Private Line,…) <Finance Saving>

= Interface reduce + VRF => Firewall zone needed reduce+ MPLS VPN L3 => Link Bandwidth at HQ reduce.

MPLS Solution In Enterprise

IP/MPLS

Site A

Bandwidth reduce!!!

Site B

Direct traffic flow



2. Improve Network Reliable



MPLS can be configured to support sub 50-msec link and node failure detection and correction• Fast Re-Route (FRR) provides “real time” re-routing

over back-up paths• Bi-directional Forwarding Detection (BFD) provides

early detection of link and node failuresThe Result: MPLS provides a cost effective alternative for the highly resilient network supporting “real-time” communications

MPLS Improve Network Reliable



2. Improve Network Reliable3. Operational cost savings of VPN provisioning



MPLS, using BGP, automates the VPN provisioning processOnly the VPN end-point routers must be configured to provision a VPNThis provisioning methodology allows MPLS-based VPNs to scale cost effectively across the largest of enterprises

The Result: OpEx cost savings of MPLS-based VPNs is provided based upon the network topology, geography, and number of VPNsacross the enterprise

The MPLS VPN Provisioning Solution



2. Improve Network Reliable3. Operational cost savings of VPN provisioning4. Scalability



MPLS enables one physical network to be configured and operate as many separate virtual networks

New acquisitions and various subsidiaries can be added to the network via MPLS VPNs

The Result: Diverse needs of business units are satisfied with virtualized networks that cost effectively scale to support the largest enterprises

The MPLS Scalability Solution


MPLS enables three core values: Consolidation, Control, and ResiliencyThrough these MPLS-based values, business benefits with financial justification are derivedEnterprises should evaluate their business needs to determine if they can benefit from the available financial justifications of MPLS capable hardware

ROI of MPLS = Net Benefit of MPLSCost of MPLS

Summary

mpls technology for enterprise network - ku.ac.th - paanob.pdf · 10.11.2008 · this slide...

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