1. Citrix Repeater
Claudio Mascaro, BCD-Sintrag AG, Switzerland
Daniel Künzli, Citrix Systems GmbH, Switzerland

2. Citrix Branch Repeater
Best Delivery Optimization
system for
XenDesktop & XenApp
Citrix Confidential - Do Not Distribute

3. Adaptive orchestration with XenDesktop and XenApp
Print Print
Thinwire Thinwire
CDM WAN CDM
Repeater Branch
Repeater
 Unprecedented visibility into XenDesktop and XenApp traffic
 Custom acceleration modes for print, video and file traffic
 Minimum changes to underlying XenDesktop or XenApp infrastructure
Citrix Confidential - Do Not Distribute

4. HDX WAN Optimization
Branch Staging of
Streamed Apps Adaptive
Adaptive TCP Adaptive Prioritization &
Protocol
Branch Caching of Flow Control Compression QoS
Acceleration
Hosted Desktops
& Apps
WAN
Branch Repeater Repeater

5. Accelerate Desktops & Apps to Branch Offices
XD & XA launch up to 40% faster
XD & XA printing up to 2.5X faster
XA file transfer up to 6X faster
Microsoft file share up to 30X faster
Microsoft SharePoint,
Outlook (Exchange) up to 50X faster
0X 10X 20X 30X 40X 50X
Citrix Confidential - Do Not Distribute

6. Reduce Bandwidth Use, Increase WAN Throughput
Actual “mileage” will vary
XD & XA interactive up to 13X throughput
XD & XA file transfer up to 35X throughput
XD & XA printing up to 38X throughput
Microsoft file share up to 100X throughput
Microsoft SharePoint,
up to 100X throughput
Outlook (Exchange)
0X 20X 40X 60X 80X 100X
Citrix Confidential - Do Not Distribute

7. Branch Repeater with Windows Server
 Application Acceleration
 SharePoint
 Dynamic CRM
 CIFS
 Exchange
2008 R2
 Native Windows integration
 DHCP
 DNS
 File Services
Fully Integrated Branch-office-in-a-box  Print
 ISA Caching
 Stage Applications
 Management
 Windows WMI
 System Configuration Operation Manager (SCOM)

8. Repeater Plug-in for Citrix Receiver
Repeater Plug-in
• Deliver a high-definition experience to
remote and mobile users
• Overcome bandwidth and latency
limitations on WiFi, broadband, and 3G
connections
• Simplify IT with a single client for every
aspect of application delivery

9. Enhances High Definition Experience in the Branch
- Gets More Out of Existing Network Infrastructure
• Deliver XenDesktop/XenApp to up to
4X more users
• Boost user experience and productivity
• Accelerate application start-up time by up
to 23% per user
• Accelerate file downloads 2-4x while
increasing file throughput by 2X-20X
• Increase print traffic throughput by 3-33X
• Free up network bandwidth for additional
users and applications
• Slash network bandwidth and branch
IT costs

10. Citrix Branch Repeater
Product Line Details

11. Complete Product Line – Citrix Branch Repeater
Integrated
Windows Services
Branch Repeater with Repeater 85xx Repeater 88xx
Windows Server 8520 8820
100 / 200 / 300 8540 8820 High Speed
Branch Repeater
100 / 200 / 300 Branch Branch
Repeater Plug-in
Repeater Repeater
Branch VPX-45 VPX-45
Repeater
VPX-2 / 10
Mobile User Branch Office Regional HQ Data Center
(1-10 Mbps) (10-45 Mbps) (45-500 Mbps)

12. SSL Acceleration & Disk Encryption – Overview
• Accelerate all applications that use SSL, e.g:
• XenApp and XenDesktop (when using SSL encryption)
• SharePoint and other ERP/CRM applications (e.g. SAP, Oracle) over HTTPS
• Exchange – Outlook Web Access over HTTPS*
• Optional encryption of data at rest and over WAN
• Available for appliances and plug-ins
Secure Web Server
PC with web (HTTPS)
browser
Branch Repeater Today:
Branch Repeater with SSL Acceleration:
• TCP Flow Control
• Quality of Service • HTTP/ICA Protocol Awareness/Optimization
• Multi-level Compression
• TCP Flow Control
• Quality of Service
* Note - Encrypted MAPI does not use SSL and is not supported

13. Flexible deployment modes for joining
the branch network
Branch Repeater
Inline WAN
• Optional Bypass NIC LAN Switch Router
Virtual Inline Branch Repeater
• WCCPv2
• Policy-based Routing
WAN
LAN Switch Router

14. Hochverfügbarkeit – 4-Port NICs im Repeater
• Die 4-Port NIC ist ein Paar von zwei logischen Fail-to-Wire
Karten
• 4-Port NICs sind für folgende Einsatzzwecke sinnvoll:
• dual homed, load balanced, und redundant
• die multiplen WAN-Links haben die selbe Geschwindigkeit
• Unterstützt HA Pair Mode ab Release 5.0
• Inline, WCCP oder Policy Based Routing Modes

15. High Availability Mode in Branch Repeater
Blaues Blaues
Netzwerkkabel Netzwerkkabel
LAN WAN
Switch Switch
Branch Repeater
Paar
Router Blaues
Netzwerkkabel
LAN
Branch Repeater
Paar
• High Availability Mode WAN
• Kombiniert transparent zwei Branch Repeater with Windows Server in ein primär/sekundär Paar
• Benutzt Standard VRRP Protokoll
• Unterstützt verschiedene HA Modi

16. Branch Repeater VPX Features
• Centralized management via
Command Center*
• Inline, WCCP and PBR
deployment modes Print
Server Branch
• No Group Mode support Services
• No Fail-to-Wire (FTW)
support
* Requires Command Center v4.0 or higher

17. Branch Repeater VPX Failover and Bypass Card
• Cannot “bridge” or bypass the
XenServer host if hosting other VMs VM #1
VPX
• XenServer does not recognize any VM #2
special hardware (FTW card)
• Use WCCP or PBR
• Use XenServer HA
• Configure VPX to start automatically VPX Server
• Configure HA on Resource Pool

18. Branch Repeater VPX Requirements
VPX Minimum Requirements XenServer Requirements
• 1 CPU • 64 bit x86 server
• 1 GB RAM • VT enabled CPU (Intel VT or
AMD-V) for running Windows
• 60 GB Disk VMs*
• 2 Virtual NICs • Min. 1 GB RAM, 16 GB
disk**
• Windows PC for XenCenter
* Branch Repeater VPX does not require VT enabled CPU
** Not including VM requirements
Citrix Confidential - Do Not Distribute

19. Branch Repeater: Virtual Appliances Minimum System Requirements
Trial Version1 Branch Repeater VPX2
Model VPX Express VPX 2 VPX 10 VPX 45 @ 4GB RAM VPX 45 @8GB RAM
Max WAN Speed 512Kbps 2Mbps 10Mbps 45 Mbps 45 Mbps
Max Accelerated
10 1000 10000 15000 25000
Connections
Max Repeater
5 50 250 400 500
Plugins
Minimum System Requirements (per VM)
Hypervisor XenServer 5.6 or later VMware vSphere vSphere
Dual Core Intel or AMD 64-bit x86 (Citrix XenServer)
Processor
Dual Core Intel VTx or AMD-V 64-bit x86 (VMware vSphere)
Memory 2 GB 2 GB 4 GB 4 GB 8 GB
Hard drive 60 GB 100 GB 250 GB 250 GB 500 GB
Network interface 2 virtual NICs
1 for Citrix XenServer 2 for Citrix XenServer
Virtual CPUs
2 for VMware vSphere 2 for VMware vSphere
1 VPX Express is a 12 month free trial license that includes 5 Repeater Plug-in licenses and limits usage to 10
accelerated connections
2 The maximum number of accelerated connections and Repeater Plug-ins depends on the resources allocated to the
VPX. For more details refer to product documentation at MyCitrix Distribute
Citrix Confidential - Do Not (www.mycitrix.com)

20. Supported Configurations and Sizing Guideline
Resource Allocation Recommended Sizing
Memory (RAM) Disk Space Max. WAN Max. Accelerated Max. Repeater
Throughput TCP Connections Plug-ins
1 GB(2) 60 GB (2) 2 Mbps 1,000 50
1 GB 100 GB 2 Mbps 1,000 50
4 GB 250 GB 45 Mbps 15,000 400
8 GB 500 GB 45 Mbps 25,000 500
IMPORTANT
1. Only the above-listed combinations of RAM and Disk are supported, more will be added in future releases.
2. The 1 GB RAM and 60 GB Disk minimal, default profile is not recommended for production. It is recommended for
demos and proof-of-concepts.
3. The above sizing recommendations are based on an average mix of various traffic types; the actual sizing will depend on
the traffic mix in a given deployment scenario.

21. HDX Broadcast &
HDX IntelliCache

22. Fully Transparent, Symmetric WAN Optimization
TCP Flow TCP Flow
Control Control
Multi-Level Protocol Multi-Level
Protocol
Compression Accelerators Compression
Accelerators
Branch Repeater Branch
Repeater Datacenter
Branch Office
Users

23. Branch Repeater Technologie – HDX Broadcast
Adaptive Protokoll Beschleunigung (Optimierung ineffizienter Protokolle)
Adaptive Compression (Erhöhung von Datendurchsatzraten)
Adaptive TCP Flow Control (Beseitigung Paketverluste, Optimierung TCP)
Priorisierung und QoS (Priorisierung von kritischem Traffic)

24. Adaptive Protokoll Beschleunigung
Optimierung gängiger Applikations-Protokolle
• Minimiert Folgen der Latenz durch
Reduzierung der Round Trips Example: CIFS
(geschwätzige Protokolle)
• CIFS (Dateiaustausch)
• MAPI (Exchange)
• Compression Engine erkennt
Anwendung
• Separiert den Headers von Payload
• ICA, CIFS, MAPI, HTTP, FTP, NFS

25. Beispiel: CIFS – ohne Branch Repeater
250ms
250ms
250ms
250ms
1000 ms

26. Beispiel: CIFS – mit Branch Repeater
Open dogboneblue
for John Whomever,
password “Whatever”
1 ms
252 ms 125 ms
1 ms
125 ms

27. Branch Repeater Technologie – HDX Broadcast
Adaptive Protokoll Beschleunigung (Optimierung ineffizienter Protokolle)
Adaptive Compression (Erhöhung von Datendurchsatzraten)
Adaptive TCP Flow Control (Beseitigung Paketverluste, Optimierung TCP)
Priorisierung und QoS (Priorisierung von kritischem Traffic)

28. Adaptive Compression
First Pass
Compression History Compression History
(HDX IntelliCache) (HDX IntelliCache)

29. Adaptive Compression
Second Pass
Ein kleiner Token ersetzt tausende von Bytes
Compression History Compression History
(HDX IntelliCache) (HDX IntelliCache)

30. Branch Repeater Technologie – HDX Broadcast
Adaptive Protokoll Beschleunigung (Optimierung ineffizienter Protokolle)
Adaptive Compression (Erhöhung von Datendurchsatzraten)
Adaptive TCP Flow Control (Beseitigung Paketverluste, Optimierung TCP)
Priorisierung und QoS (Priorisierung von kritischem Traffic)

31. Adaptive TCP Flow Control
Unter Berücksichtigung von Latenz und Paketverlusten
Ohne Branch Repeater Mit Branch Repeater
Durchsatz Durchsatz
Link Geschw. durchschn.
Auslastung
durchschn.
Auslastung
Zeit Zeit
Slow Start Slow Ramp

32. Branch Repeater Technologie – HDX Broadcast
Adaptive Protokoll Beschleunigung (Optimierung ineffizienter Protokolle)
Adaptive Compression (Erhöhung von Datendurchsatzraten)
Adaptive TCP Flow Control (Beseitigung Paketverluste, Optimierung TCP)
Priorisierung und QoS (Priorisierung von kritischem Traffic)

33. Traffic Priorisierung und QoS
Zuweisung von Bandbreite über versch. Anwendungen und virtuelle ICA-Kanäle
Ohne Branch Repeater Mit Branch Repeater
20% ICA (Interactive)
Bulk Transfers 20% Unterhaltung (YouTube, MySpace)
1.5 Mbps
Unterhaltung (YouTube, MySpace)
ICA (Interactive) 60% Bulk Transfers

34. What’s new in
Branch Repeater 6.0

35. Branch Repeater 6
Smart- User-centric Faster Encrypted Centralized
Acceleration Prioritization Delivery Licensing
Visibility and First and only Microsoft For simpler
control over 500+ for virtual desktops apps (encrypted deployment in hundreds
apps and services and apps Exchange, SMB) of branch offices

36. SmartAcceleration for Deeper Visibility and Granular Control
• Visibility for 500+ predefined apps and
XenApp protocols out-of-the-box, + more custom
• Prioritize XenDesktop, multimedia, web
Voice, Video and Windows apps, custom services,
100010100001110 000111000 any application
0011100011101001110111000
XenDesktop
1001100110011101000011000 • Auto-detect and auto-configure
XenDesktop; no changes to network or
MicrosoftApps XenDesktop
File, Print • Prioritize by app, branch or user
location, app type, protocol, traffic
direction, more

37. Multi-stream ICA in XenDesktop / XenApp
Auto-enable and auto-configuration with Branch Repeater
User 1 100010100001110 000111000100010100001110 000111000100010100001110 001110 00111000
Use a single TCP port for multiple ICA streams XenDesktop 5.5 and
XenApp 6.5.

38. Scale for higher capacity (throughput, conns. & users)
Clustering (load balancing) through NetScaler
• Policy-based “sticky” load balancing with health monitoring, optional HA pair
• Automatic load re-balancing on Repeater failover
• Support for Repeater Plug-in and Branch Repeater / NetScaler VPX

39. SmartAcceleration
Adaptively allocates bandwidth across different applications and ICA virtual channel types
Without Branch Repeater With Branch Repeater
Desktop User Group Executive
40%
CIFS ICA
Desktop User Group FrontDesk
YouTube ICA Published App CAD
ICA Published App Word, Excel
https
1.5 Mbps
ICA MAPI
60%
https
MAPI CIFS
hulu hulu & YouTube

40. SmartAcceleration and ICA Priority Tags
• Default Priority bits and ICA virtual channels:
Priority Sample Virtual Channels
0 – Realtime Video, Mouse and Keyboard Screen Updates
1 – Interactive Program Neighborhood, clipboard, audio mapping, license management
2 – Bulk Transfer Client COM Port Mapping, Client Drive Mapping
3 – Background Auto Client Update, Client Printer Mapping and OEM Channels
• ICA packet with data from multiple channels gets the priority bit associated with
the highest level Virtual Channel

41. SmartAcceleration
ICA Packet
• Quality of Service is applied Priorities
using 4 mechanisms
Application Traffic Shaping
• Link Definition Groups Policies
• Application Classifiers
Application Link
Service Classes
• Service Classes Classifiers Definitions
• Traffic Shaping Policies
Acceleration Traffic
Engine Shaper

42. SmartAcceleration - Application Classifiers
XenApp and XenDesktop
• ICA Published Applications or Virtual
Desktops are auto-discovered
• Once discovered, they will appear in
the application classifier list as well as
in all reports and monitoring pages
• Naming convention for auto-discovered
ICA applications
• ICA: NameOfTheApplication

43. SmartAcceleration - Application Classifiers
XenApp and XenDesktop
• Once applications or desktops are
auto-discovered, the name and
description can be edited
• The name in the Published App Name
field cannot be edited
• The new name and description will
now appear in Application reports and
monitoring pages