WAN Governance The Cloud Making use of it for your business

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Pauline Marshall
7 years ago
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1 Beyond the Network WAN Governance The Cloud Making use of it for your business

2 First Question : What is Governance? Governance relates to decisions that define expectations, grant power, or verify performance. It consists either of a separate process or of a specific part of management or leadership processes. Sometimes people set up a government to administer these processes and systems. Source: Wikipedia: 2

3 Second Question : Where does Governance come from? The Republic (Ancient Greek: Πολιτεία Politeía, meaning "city-state governance") is a Socratic dialogue by Plato, written in approximately 380 BC. 3

4 Why do we need Governance? 4

5 IT Governance is now an established discipline Among the challenges and concerns are: Aligning IT strategy with the business strategy Cascading strategy and goals down into the enterprise Providing organizational structures to implement strategy Adopt and implement an IT control framework Measuring IT performance 5

6 WAN Governance Aligning WAN strategy with the IT and the business strategy Cascading strategy and goals down to the network Providing organizational structures to implement strategy Adopt and implement a control framework at WAN level Measuring application performance over the WAN State Governance Corporate Governance IT Governance WAN Governance 6

7 What keeps you up at night? How do you get full visibility over your global network? Understand the root cause of application slowdowns Communicate clear data about application performance Discover applications and their resources usage How do you deliver business applications? Guarantee performance of unified communications over a converged network Ensure excellent application performance to your distributed workforce Manage social media and recreational or non-critical applications How do you cost-optimize your WAN? Reduce your WAN bandwidth requirements now and plan for tomorrow Take advantage of the Internet as a business network Get global control without deploying technology everywhere 7

8 WAN Governance is a closed-loop process Set up objectives Measure gaps to objectives Compare situation with objectives Implement corrections or improvements Decide on corrections or improvements 8

9 WAN Governance subjects Understanding your application traffic Traffic control, acceleration and optimization Application performance management Network operations Cost and savings control 9

10 What WAN Governance challenges do enterprises face? Diverse mix of applications Voice Video Conferencing ERP Intranet Internet...etc... Complex Network MPLS providers VSAT networks Internet VPNs Challenges Networking needed in sometimes inaccessible locations Mix of networking technologies End-user experience more important than network technology Centralised servers, distributed users 10

11 The importance of understanding traffic Average number of individual applications differentiated by enterprises when they can freely do so 11

12 The importance of understanding traffic ( ) Average number of Application Classes 12

13 The importance of understanding traffic ( ) Amount of business critical traffic; that requires the same analysis accuracy as the 54% that s low criticality traffic 13

14 Traffic control Traffic control: Why? Time matters Complex meshed environments Mix changes rapidly Hard to forecast Need to guarantee first 14

15 Traffic differs day by day through the week, month,... Volume Quality Traffic Profile D-2 Traffic Profile D-1 15

16 KPIs KPIs and metrics: MOS (mean opinion score) AQS (Appli. Quality Score) Apdex (Appli. Perf. Index) RAG 16

manually Fix reactively To WAN Governance Application

17 Manage your network automatically and according to business needs From Network Management Network policies Adapt manually Fix reactively To WAN Governance Application objectives Adapt automatically Drive proactively Technology Business 17

18 AQS, Quality trend and volume trend site by site Performance- Score out of 10 Note poor AQS Change over time 18

19 and for the ERP application specifically Remember site AQS was 4.0 Critical Application AQS is much better (>8) Easily find sites where key application performance is degraded (here AQS < 9 out of 10) 19

Distributed Integrated / Silos Global / Point to point

20 Operations and IT agility Network Operations DIY Co-managed Fully-managed Technology Central / Distributed Integrated / Silos Global / Point to point IT evolution New delivery architecture New business applications 20

21 People matter People matter: Unfair finger-pointing Hard time to justify network strategy Demoralizing low-level tasks 21

22 Avoiding unnecessary finger-pointing by being in control At a glance application performance using RAG indicators (red amber green) At a glance site performance using RAG indicators (red amber green) 22

The delivery of applications is more complex than in a pure

23 Now, why should we care about cloud computing? The network is more tightly coupled to the business than ever The delivery of applications is more complex than in a pure private environment IT NETWORK VALUE FOR BUSINESS APPLI. DELIVERY COMPLEXITY 23

24 Cloud computing: The shift from classical computing is fast so governance is even more important Crystallization is happening rapidly a few years Strong enablers (Internet and server virtualization) Afterwards, everything is different, forever Cloud computing Legacy computing NOW! (Internet)

encryption) over the public Internet Example: https://login.salesforce.com/.

25 Clouds can use either public or private networks Public clouds will always use the Internet SSL (TLS) is the most current protocol offering the security layer (authentication, encryption) over the public Internet Example: Private clouds may use either the Internet, MPLS VPN, or a combination (hybrid networks) Public Private cloud MPLS 25

26 Server virtualization is the 2nd enabler It is Efficient because most dedicated hardware servers run at only 10% to 20% of capacity => 5 to 10 virtual servers can easily run on one box without performance issues It is Flexible because virtual machines (VMs) are just files that can be moved and copied easily 26

The challenge of cloud managing flows from anywhere Primary Datacenter Secondary Datacenter SaaS / IaaS (Public Cloud) Ensure key applications always available, regardless of location ERP Intranet

27 The challenge of cloud managing flows from anywhere Primary Datacenter Secondary Datacenter SaaS / IaaS (Public Cloud) Ensure key applications always available, regardless of location ERP Intranet Internet Gateway Adapt to the dynamic nature of the traffic flows Automatically meet application performance objectives Manage unimportant traffic to guarantee critical flows work Minimum user bandwidth for good Citrix quality Branch Office Emergency location Work in any environment, over any delivery technology, end-toend. 27

28 A 12 question check-list to start a WAN Governance project Key applications 1. What are the key applications? 2. What are the different application delivery models? 3. What does performance mean for the business? Money talks 7. Capex versus Opex. 8. What is the desired economic impact? 9. How are expenses allocated? Operations model 4. Are IT and network management centralized or decentralized? 5. Is the company culture about outsourcing or insourcing? 6. What is the preferred run model? Organization of the Governance 10. Who are the sponsors? 11. Who s in charge? 12. What are the KPIs? 28

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