Session Objectives And Takeaways Session Objectives Identify branch office challenges and opportunities Identify new WS08 and Windows Server 2008 R2 features and capabilities benefiting branch office environments ID: 136913
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Slide1
Building an efficient Branch Infrastructure using Windows Server Slide2
Session Objectives And Takeaways
Session Objectives:
Identify branch office challenges and opportunities
Identify new WS08 and Windows Server 2008 R2 features and capabilities benefiting branch office environments
Key Takeaways:
Understand how Windows Servers meets the challenge of branch office scenarios
Map WS08 Technologies to Branch Office SolutionsSlide3
Session Overview
Microsoft in the Branch Office
Improving WAN efficiency
Next Generation TCP/IP Stack
SMB 2.0File System improvementsTransparent Caching for SMBOffline FilesDFS – Read Only ReplicaBranchCache™ Differentiating Servers in Branch officesServer CoreActive Directory Domain Services – RoDCPartnerships to Offer Windows Services in the Context of WAN Optimization
NEW in WS08 R2
NEW in WS08 R2Slide4
Microsoft in the Branch
Home to 20% of Windows Servers
Most servers used as application servers or to provide infrastructure services
Branch Office
H Q
Source Internal Microsoft Research 2007Slide5
+ Highly resilient
+ High Performance
- Costs
-
Complex
Distributed
Centralized
+ Ease of Deployment
+ Simplicity
- Performance
- Single Point of Failure
Branch Office Deployment Topologies
Remote Office
Appliance
Networking
Security
VPN, Network Access Protection, Identity and Access
Data CenterSlide6
Why WAN requires special handling
LAN Latency < 1ms
Latency on WAN links
Delays connection setup
Delays Data
Txfer
Degrades end user experience
Protocols can only Receive limited data based on buffer size
WAN Latency >100msSlide7
Microsoft's Commitment
Innovate in the Windows Server platform to add features that make it even more suitable for branch deployments
Partnerships to offer Windows services in the context of
WAN Optimization Controllers
Improve end user experience through improvements to the underlying protocolsSlide8
Network
Sender’s Networking Stack
Receiver’s Networking Stack
Sender Application
Receiver Application
Network Performance Factors
Make the protocol aware of the varying network conditions
Reduce amount of Round trips the protocol makes
Reduce WAN utilization
Slide9
Automatically Tune the Network Stack
Optimized performance without loss
Intelligent, automated tuning of TCP
receive window
size
Better packet loss resiliency (e.g., wireless connectivity)Advanced congestion control for better throughput (CTCP)
Automatically adjusts for maximum efficiency
Faster network transfers, especially across WAN links
Optimized use of available network bandwidth
Reduced packet loss resulting in fewer retransmitsSlide10
TCP Receive Window Size
Default TCP windows size of 64KB
NO AUTO TUNING
Severely limits round trip times
Sender transmits are limited to advertised receive window sizeWindow size backs off by 50% with packet lossWindows size increased slightly with every ACKManual tuning of receive window size does not offer ideal resultsWindows XP & Windows Server 2003
Auto-tune enabled by defaultMax receive window determined by:
Application consumption capacity
Network capacity and conditions
Windows Vista/Win7 and Windows Server 2008 and R2Slide11
Redesigned TCP/IP Stack
Dual-IP layer architecture for native IPv4 and IPv6 support
Seamless security through expanded
IPsec
integration
Improved performance via hardware accelerationNetwork auto-tuning and optimization algorithmsGreater extensibility and reliability through rich APIs
Windows Filtering Platform API
IPv4
802.3
WSK
WSK Clients
TDI Clients
NDIS
WLAN
Loop-back
IPv4 Tunnel
IPv6 Tunnel
IPv6
RAW
UDP
TCP
Next Generation TCP/IP Stack (tcpip.sys)
AFD
TDX
TDI
Winsock
User Mode
Kernel ModeSlide12
Server Message Block 2.0
Multiple command in a single packet
Reduced wait time and connection overhead
Much larger buffer size
Network stack is no longer the bottleneckApplication & disk are now the bottleneckParallel Write, Parallel ResponseDurable handles allow recover from brief network disruptionsSymlink supportSlide13
File Shares – Streaming Improvement
Parallel requests greatly increase read/write speed
Download speed (kb/sec), 100 ms RTT
Request
Response
SMB1
SMB2Slide14
Time to Completion
(seconds)
File Copy Comparison
9.47
12.9131.2432.18
Windows 2008 & Vista 08 & XP
03 & XP
Windows 2003 & Vista
Throughput (Mbps)
The
Tolly
Group, Inc. (2007)
10 MB file over 10 Mbps (50ms) linkSlide15
Enhancing the
Offline Files experience
Anjli Chaudhry
Program Manager – Offline Files
Microsoft Corporationanjlic@microsoft.comSlide16
Building
on Vista SP1 Offline Files
Provides seamless access to network files on File shares whether client is offline or online
Common deployment scenarios:
Folder RedirectionRedirection of “known” client folders (e.g. ‘Documents’)Cached Drives(e.g. H:\ mapped to SMB share)User pinning of remote shares or specific filesPublication content for use in branch officesSlide17
Offline Files
– "Usually Offline" Support
Situation Today
Folder redirection is a success with online & offline modes in Windows Vista
Not transparent to users who are on a high latency network with low throughput
Benefits
Full 2-way background synchronization at fixed intervals
Synchronization transparent to the end user
IT admin can configure synchronization intervals
Windows 7 Solution
Seamless experience for end-users
Corporate data is in sync
Optimizes the network usage for remote workers & branch officesSlide18
Transparent Caching
Read response times for files that were just open takes too long
Opening a file that was just recently read takes just as long as opening a file for the first time
Bandwidth consumption is high regardless of how recent a file was opened
Files accessed on SMB shares are automatically cached to disk
Subsequent reads to the file are satisfied from the local cache
Caching policy configurable through group policy
Transparent to the end user
Optimize bandwidth consumption on WAN links
Provide near local read response times for end users working over WAN links
Situation Today
Windows 7 Solution
BenefitsSlide19
Branch
Office File Copy
Windows Server 2008 R2
Slow WAN Link
Client 1
Client 2
Windows 7/Server 2008R2
Windows 7 Clients
Windows
Server 2008
Slow WAN Link
Client 1
Client 2
Today
Vista SP1 ClientsSlide20
BranchCache
™
Reduce Network utilization
Improve End user experience
Preserve End to End Encryption
Simple to Deploy and Manage
New in Win7 and WS08R2
IntroducingSlide21
Get
Get
ID
Get
Data
Branch Office
Main Office
BranchCache™
- Distributed Cache
Get
ID
Data
DataSlide22
Get
Get
ID
Put
Data
Branch Office
Main Office
BranchCache™
- Hosted Cache
Get
Data
ID
Search
Get
Search
Request
Advertize
ID
ID
ID
Data
ID
Data
Cache in the branch that is always available
Installable on an existing WS08R2 server
Works across IP subnetsSlide23
Deployment
Branch Office
IIS
File Server
Group Policy
Management
Install the optional “Windows Branch Cache” component on a Windows 7 web or file server
Use Group Policy to enable Windows Branch Cache on Windows 7 clients
Hosted
Cache
Optionally, install a hosted cache in your branch. Configure clients to use it with Group Policy
Branch Office
Branch Office
Main OfficeSlide24
Framework
IE
HTTP (WebIO/http.sys)
Windows
BranchCache
WMP
SMB (CSC/SRV)
SharePoint
Explorer
Office
3
rd
Party Applications
SCCM
WSUS
BITS
XCOPY/
RobocopySlide25
File Replication engine – successor to NT FRS.
Microsoft Confidential
Scalable
Reliable
Efficient
“Just works”
Scales to Terabytes of data and millions of files.
Hundreds of members/replication group, flexible topology.
Hundreds of replication groups and folders/replication group.
No
data loss or directory morphsMulti-master with ‘last writer wins’ conflict resolution
Uses Remote Differential Compression (RDC) to significantly reduce bandwidth consumption.WAN friendly.
Easy to configure, low touch
Focus on in-box management tools and ship with MOM MPAuto-recovers from most conditions (e.g. journal wrap or loss, database corruption)
Distributed File System – ReplicationSlide26
DFS Scenario: Publishing
Microsoft Confidential
DFS Namespace
Audrey
(Singapore)
Jennifer
(London)
(Seattle)
DFS Replication
DFS ReplicationSlide27
Remote Differential Compression
Microsoft Confidential
Original file
Updated file
Updated
file
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the fox jumping over him.
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The quick fox jumped
over the lazy brown dog.
The dog was
so lazy that he didn’t notice
the fox jumping over him.
The quick fox jumped
over the lazy brown dog.
The
brown
dog was
the fox jumping over him.
so lazy that he didn’t notice
The quick fox jumped
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The
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the fox jumping over him.
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[use recursion]
Receiving Partner
Sending Partner
Request file
MD4
21
… MD4
25
Fetch new chunks 3, 4Slide28
Why Read-only Replicated folders?Slide29
Introducing
Publication data that should never be changed at branch locations
Any open or create requesting WRITE access will be failed by a new filter driver
In case the filter is not running, other Win7 Replication Group members will refuse updates from a read-only replication partner
ReadOnly DFS Replica
New in Win7 and WS08R2Slide30
End-user experienceSlide31
Microsoft's Commitment
Innovate in the Windows Server platform to add features that make it even more suitable for branch deployments
Partnerships to offer Windows services in the context of
WAN optimization Controllers
Improve end user experience through improvements to the underlying protocolsSlide32
Server Core in the Branch
*Not recommended minimumsSlide33
What is Server Core?
Server Core is a minimal Windows Server 2008 installation option.
GUI? – Gone (mostly).
Windows Explorer? – Gone.
Internet Explorer & Media Player? – Gone..Net Framework? – Gone. MMC? - Gone too.Designed to support very specific workloads.Slide34
What can I do with Server Core?
Active Directory Domain Services - ADDS
AD LDS (aka, ADAM)
Domain Name System Server - DNS
DHCP ServerFile ServicesInternet Information Services (IIS7)Print ServerWindows Media Services Hyper-V.NET Support
NEW in WS08 R2Slide35
Read Only Domain Controller
Reduces risk when deploying DC where physical security is not ideal
Add
BitLocker
™ for additional securityRODC tools allow targeted response to physical security breachReduces replicationMachine and user secrets are among the most frequent directory services changes.Slide36
+ Highly resilient
+ High Performance
- Costs
- Complex
Distributed
Hybrid
Centralized
+ Ease of Deployment
+ Simplicity
- Performance
- Single Point of Failure
Branch Office Deployment Topologies
Remote Office
Appliance
Networking
Security
VPN, Network Access Protection, Identity and Access
Data CenterSlide37
Microsoft's Commitment
Innovate in the Windows Server platform to add features that make it even more suitable for branch deployments
Partnerships to offer Windows services in the context of
WAN optimization Controllers
Improve end user experience through improvements to the underlying protocolsSlide38
C
itrix
Branch
Repeater with Windows Server
Stages application content
Accelerates enterprise trafficConsolidates local branch functionsSlide39
Cisco WAAS
with Virtualization
Windows Server with WAAS
Branch optimized IT services
Read-only Domain Controller
Print services
DNS/DHCP
services
Complete WAN optimization + application acceleration
Ability to host Windows services
locally
Microsoft Windows
Server 2008 Server Core
Jointly developed architecture
Joint customer support
Cisco WAAS with pre-packaged Windows Server 2008 services
Available NowSlide40
Related Content
Breakout Sessions/Chalk Talks
SVR03-IS:Windows Server 2008 in the Branch Office
CLI204 Windows Client: roadmap and introduction to Windows 7 for enterprise customers
CLI06-IS Networking for Mobile Workers: from Windows Vista to Windows 7 CLI10-IS - Branch Office Networking: from Windows Vista to Windows 7 CLI 303 - Windows Networking: from Windows Vista to Windows 7Branch Office Solutions Booth (booth 36)Slide41
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The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.