This is the third presentation out of 3 on Slideshare reviewing the enterprise needs, issues and considerations from WAN services from CIO point of view. This presentation series is for CIOs and the providers that offer such services. All you need to know about carrier Ethernet service levels and SLAs – what matters to the users and what a service provider should offer. Part I – why chose carrier Ethernet WAN services Part II – Service levels and SLA Part III – Ethernet and IP VPNs – when to use each

1. Carrier Ethernet – The CIO PerspectivePart III: Ethernet and IP VPNs, When to Use Which? RAD Data CommunicationsJune 2011

2. Ethernet and IP VPNs: When to Use Which? Layer 2 (L2) Ethernet and Layer 3 (L3) IP/MPLS VPNs offer different benefits for different needs:

3. L2, L3 Key Decision Factors:Cost, Scalability, Control Low price per Mbps: Ethernet VPNs are ideal for high throughput typically required at large branches or data centers IP/MPLS VPNs: Fit highly distributed installations, a very large number of sites Low to medium bandwidth rates Ideal for remote access Control: Enterprises comfortable with self managing their IP address space and routing tables prefer Layer 2 Ethernet VPNs Businesses without in-house knowledge of IP switching fundamentals, prefer turnkey VPNs

5. Meet bandwidth, delay and control requirements for high volume content delivery, storage and disaster recovery

6. L3 VPN for branch connectivity:

8. Visit www.ethernetaccess.com for more information