Thin WAN links between main offices and branch offices were resulting in high link utilization, poor application performance, and a trend toward centralizing data in core data centers. WAN optimization technology provided LAN-like throughput over WAN links, reduced the number of roundtrips needed for transactions, and saved bandwidth.

14. Thin, expensive WAN links between
main office and branch offices
• High link utilization
• Poor application responsiveness
• Trend towards data centralization

15. WAN
LAN-Like Bandwidth Savings
Throughput Fewer Roundtrips
LAN Throughput WAN Throughput
60Mbps 3 Mbps
2.5 Mbps
50 Mbps
Throughput
Throughput
2 Mbps
40 Mbps
1.5 Mbps
30 Mbps
1 Mbps
20 Mbps
.5 Mbps
10 Mbps
01:20 01:21 01:22 01:23 01:24 01:25 01:26
01:20 01:21 01:22 01:23 01:24 01:25 Throughput
Throughput 01:26
Optimization Enabled

17. ID
Data
Data

19. ID
Data
ID
ID
Search
Data
ID
ID
ID
Data

23. OS
Parent Partition Child Partitions
Hyper-V
VM Worker
Processes ISV / IHV / OEM
Applications
Applications Applications MS/ XenSource
WMI Provider
VM Service
User Mode
Windows Server Xen-Enabled Linux
Non-
Windows Server
Windows Server 2008, x64
2008, x64 Kernel
2008, 2003 Hypervisor
Windows Linux
Aware OS
VSP
Drivers
VSC
Windows
VSC
Windows Kernel
Kernel Windows
Hypercall
Windows Drivers
Kernel
Adapter
VMBus
VMBus Emulation VMBus Kernel Mode
Hyper-V
“Designed for Windows” Server Hardware

26. Configuration
State