Repeater TrainingIntroduction and OverviewBarney NortonOriginal published May 2012Updated October 2012
Agenda                                              • General session agenda                                              ...
General Session Agenda
Course Overview• Theory of WAN optimization • Advanced theory of the building blocks of Optimization• Advanced network des...
Repeater Product Overview
Opportunity Drivers for the Repeater on SDX• Xen Desktop Migrations driving customers need to  accelerate large-scale, rem...
Release Schedule• Mediolanum 1 • Hardware and software first release. • Based on Corinth Netscaler SDX hardware. • Complic...
Release Schedule cont.• Mediolanum 2 • Based on Galata Netscaler hardware • Dynamic Load balancing of Repeater resources. ...
Branch Repeater Scalability                          Appliance Product Line  2 Gbps                                       ...
Architecture Overview: Med I  NetScaler instance load                                                                     ...
Architecture Overview: Med IINetScaler instance load                                  Each Repeater instance has          ...
New Hardware Overview                   Feature          Repeater 310Total Throughput                      310 MbpsICA Ses...
Existing Hardware Overview                   Feature          Repeater 500              Repeater 1000Total Throughput     ...
Existing Hardware Overview               Feature             Repeater 1500              Repeater 2000Total Throughput     ...
Repeater Features Not Supported on Repeater SDX• Group mode• WCCP mode (Initial release)• Hardware bypass mode (Initial re...
Key Data Points for Proper Repeater on SDX Sizing• Bandwidth • Consider the sites that do not have Repeater • Make the cus...
Installation Options
Installation Options• PBR• Inline• Netscaler adds interface and connection flexability • Netscaler HA for multi-appliance ...
Deployment Options   • Routed PBR:     • Inline No FTW:
Scalability Options• Deployment options for thousands of concurrent connections
Scalability Options Complex
Repeater Features Not Supported on Repeater onNetScaler SDX• Group mode• WCCP mode• Hardware bypass mode• Repeater high-av...
Branch repeater technical training presentation 26 oct-12
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Branch repeater technical training presentation 26 oct-12

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  • The SDX is based on the Netscaler SDX hardware we already have but had been modified to meet the additional requirements of WAN optimization. A single instance of Netscaler VPX is used to Load Balance up to 6 Repeater VPX instances. Additional hardware has been added to the base SDX platform as an example additional memory and SSD drives have been added to meet the requirements of compression and other Repeater processes. A pay to grow architecture continues the trend of Citrix network appliances for flexibility and growth.
  • Several market drivers have led to a requirement for increased capacity. Leading the charge is the continuing migration to Xen Desktop with it’s increased requirements for BW. Server consolidation in the large enterprise have led to increased WAN Bandwidth requirements as well as an application performance issues that WAN optimization help smitigate . Overall we are seeing a growing demand from the large enterprise for WAN optimization that our current product set cannot address.
  • Several market drivers have led to a requirement for increased capacity. Leading the charge is the continuing migration to Xen Desktop with it’s increased requirements for BW. Server consolidation in the large enterprise have led to increased WAN Bandwidth requirements as well as an application performance issues that WAN optimization help smitigate . Overall we are seeing a growing demand from the large enterprise for WAN optimization that our current product set cannot address.
  • Several market drivers have led to a requirement for increased capacity. Leading the charge is the continuing migration to Xen Desktop with it’s increased requirements for BW. Server consolidation in the large enterprise have led to increased WAN Bandwidth requirements as well as an application performance issues that WAN optimization help smitigate . Overall we are seeing a growing demand from the large enterprise for WAN optimization that our current product set cannot address.
  • The Repeater SDX architecture should be familiar since it is based on the same principles as the Netscaler SDX platforms. The Repeater uses a Netscaler image to Load Balance 3 Repeater VPX images in the 11505 and 6 in the SDX 13505. Policies in the Netscaler distribute traffic evenly among the virtual repeaters ensuring that no single image is over subscribed. There is a service VM for management everything running on the Citrix SDX purpose built Hypervisor. Most management functions can be accomplished through the Service VM but there are requirements for management at the VM level.. This hypervisor enables SDX to take full advantage of the under lying hardware.
  • The Repeater SDX architecture should be familiar since it is based on the same principles as the Netscaler SDX platforms. The Repeater uses a Netscaler image to Load Balance 3 Repeater VPX images in the 11505 and 6 in the SDX 13505. Policies in the Netscaler distribute traffic evenly among the virtual repeaters ensuring that no single image is over subscribed. There is a service VM for management everything running on the Citrix SDX purpose built Hypervisor. Most management functions can be accomplished through the Service VM but there are requirements for management at the VM level.. This hypervisor enables SDX to take full advantage of the under lying hardware.
  • Based on the tried and tested Corinth 11500 and 13500 hardware platforms. Significant changes have been made to accommodate the demands of Optimization. Additional storage capacity comprised of 48 GB of ram and 2.6 TB of SSD have been added. The addition of SSD significantly improves the performance of Disk based Compression. The additional available ports and the Netscaler capabilities add some flexibility to the deployment of the Repeater SDX. We now have 10GigE ports as well as Eight 1GigE ports up from 4 ports in the 8000 series appliances. It is important to note that Fail to Wire has not yet been implemented into the SDX but that we can use the HA mode available in Netscaler for Failover. We can also use many of the other advanced features of Netscaler to assist in deployment in complicated network environments environments.
  • Based on the tried and tested Corinth 11500 and 13500 hardware platforms. Significant changes have been made to accommodate the demands of Optimization. Additional storage capacity comprised of 48 GB of ram and 2.6 TB of SSD have been added. The addition of SSD significantly improves the performance of Disk based Compression. The additional available ports and the Netscaler capabilities add some flexibility to the deployment of the Repeater SDX. We now have 10GigE ports as well as Eight 1GigE ports up from 4 ports in the 8000 series appliances. It is important to note that Fail to Wire has not yet been implemented into the SDX but that we can use the HA mode available in Netscaler for Failover. We can also use many of the other advanced features of Netscaler to assist in deployment in complicated network environments environments.
  • Based on the tried and tested Corinth 11500 and 13500 hardware platforms. Significant changes have been made to accommodate the demands of Optimization. Additional storage capacity comprised of 48 GB of ram and 2.6 TB of SSD have been added. The addition of SSD significantly improves the performance of Disk based Compression. The additional available ports and the Netscaler capabilities add some flexibility to the deployment of the Repeater SDX. We now have 10GigE ports as well as Eight 1GigE ports up from 4 ports in the 8000 series appliances. It is important to note that Fail to Wire has not yet been implemented into the SDX but that we can use the HA mode available in Netscaler for Failover. We can also use many of the other advanced features of Netscaler to assist in deployment in complicated network environments environments.
  • Selling the SDX is a technical sale that requires the right information to not only select the right appliance but to set the customer expectations for success. BandwidthFind out the bandwidth so you can start the process of selecting the right applianceRemember that Bandwidth is just the first step do not stop thereXA and XD have very different BW requirements on average XA uses 45k to 75k per user while XD can use 225k. This is a significant differenceTCP ConnectionsWhile the Repeater on NS SDX has tremendous capacity for TCP connections ICA uses more SDX resources plan accordinglyNetwork DiagramMost problems happen during the installation phase Diagrams leave no doubtApplication ListKnow what the critical apps are it is information that will help set expectations for performanceIn PBR mode the route policy will determine what is sent to the SDX
  • It is important to counsel with the customer to select the right deployment method this is of particular importance since there are some limitations to remember.There is no fail to wire cardWCCP is not currently supportedCare must be taken to size the deployment correctly. Of particular note is the number of maximum Concurrent ICA connections.A routed installation is preferred for reasons of HA and failure of the data path in case of hardware failure. No FTW means that if the SDX fails then connectivity is lost to the WAN. WCCP is not available in the current release So PBR is the only out of line option. Fortunately there is flexibility for physical connectivity with both 10 Gig and 1 gig interfaces available. Internally the virtual network connections between the Netscaler VPX and the repeaters is one armed and do not directly affect the external connectivity. A fully redundant configuration would include multiple Repeater SDX appliances using the Integrated Netscaler to manage failover. What happens when the capacity requirements exceed the capabilities of a single SDXAlways “one-armed” internally (only one interface required), but the SDX as a whole can be deployed in inline or virtual inline mode.No bypass support. The appliance will not pass traffic until it is fully configured. Production use of inline mode will cause an outage. Routed mode preferred as it is more reliable. Management functions for all VMs use the management port 0/1.
  • The combination of Netscaler and Repeater SDX give us incredible flexibility regarding capacity. This drawing illustrates the routed mode capability to grow beyond the capacity of a single appliance. A Netscaler can load balance multiple Repeater SDXs. Using Repeater SDX 13505 this simple configuration can Optimize8000 Concurrent ICA connections240,000 concurrent TCP connections2GB of BandwidthUp to 1Gb of CompressionAs an example the same 8000 configuration would only yield 300Meg of compression.
  • The combination of Netscaler and Repeater SDX give us incredible flexibility regarding capacity. This drawing illustrates the routed mode capability to grow beyond the capacity of a single appliance. A Netscaler can load balance multiple Repeater SDXs. Using Repeater SDX 13505 this simple configuration can Optimize8000 Concurrent ICA connections240,000 concurrent TCP connections2GB of BandwidthUp to 1Gb of CompressionAs an example the same 8000 configuration would only yield 300Meg of compression.
  • Branch repeater technical training presentation 26 oct-12

    1. 1. Repeater TrainingIntroduction and OverviewBarney NortonOriginal published May 2012Updated October 2012
    2. 2. Agenda • General session agenda • Repeater Product overview • New platforms • New hardware installation options • Netscaler Advantages© 2012 Citrix | Confidential – Do Not Distribute
    3. 3. General Session Agenda
    4. 4. Course Overview• Theory of WAN optimization • Advanced theory of the building blocks of Optimization• Advanced network design and preparation• Detailed SDX architecture • Med 2 Configuration• Futures• POC best practice
    5. 5. Repeater Product Overview
    6. 6. Opportunity Drivers for the Repeater on SDX• Xen Desktop Migrations driving customers need to accelerate large-scale, remote VDI implementations with 10,000 to over 100,000 users• High resource requirements for ICA optimization• Limits of current hardware• Market moves to high capacity large enterprise• New opportunities with DC to DC replication• The increased BW requirements of XD
    7. 7. Release Schedule• Mediolanum 1 • Hardware and software first release. • Based on Corinth Netscaler SDX hardware. • Complicated mapping of NetScaler and Repeater resources. • Management interface to be replaced with Med 2 software. • Based on the 5.6 release of Repeater VPX • No SSL optimization • No QoS • No FTW
    8. 8. Release Schedule cont.• Mediolanum 2 • Based on Galata Netscaler hardware • Dynamic Load balancing of Repeater resources. • Unified management and monitoring of Repeater instances. • Based on 6.0 release of Repeater code. • Repeater Plugin support • Release 2nd Quarter 2012
    9. 9. Branch Repeater Scalability Appliance Product Line 2 Gbps Repeater 20001.5 Gbps Repeater Performance Repeater 1500 Same hardware 1 Gbps Repeater 1000 Repeater 500 Same hardware500 Mbps Repeater 310155 Mbps Same hardware 45 Mbps Branch Repeater 8540 10 Mbps Branch EOS/EOL Branch Branch Repeater 300 Repeater 8520 Repeater 8820 Q2/3 2013 2 Mbps Branch Repeater 200 1 Mbps Branch Repeater 100 Concurrent XD Sessions 50 100 200 500 1200 2500 3500 5000
    10. 10. Architecture Overview: Med I NetScaler instance load Each Repeater instance has balances for the six dedicated CPU, RAM and NIC Repeater instances resources – non-blocking NetScaler Repeater Repeater Repeater Repeater Repeater Repeater Service VM Citrix SDX Purpose-Built Hypervisor Hardware Layer All VMs use SR-IOV for direct access to hardware -- All sessions operate at bus speed Citrix Confidential - Do Not Distribute
    11. 11. Architecture Overview: Med IINetScaler instance load Each Repeater instance has Unified Repeater balances for the eight dedicated CPU, RAM and NIC Interface Repeater instances resources – non-blocking NetScaler Repeater Repeater Repeater Repeater Repeater Repeater Repeater Repeater Service URI VM Citrix SDX Purpose-Built Hypervisor Hardware Layer All VMs use SR-IOV for direct access to hardware -- All sessions operate at bus speed Citrix Confidential - Do Not Distribute
    12. 12. New Hardware Overview Feature Repeater 310Total Throughput 310 MbpsICA Sessions 750CPU 2 X Intel 6 core 2.4 GHzRAM 48 GBSSD 4 x 600 GB, 1x 256 GBHDD 1 x 1 TB HDDInterfaces 4 x 10 GigE, 8 x 1 GigEHot swappable power supplies 2Rack unit height 2
    13. 13. Existing Hardware Overview Feature Repeater 500 Repeater 1000Total Throughput 500 Mbps 1GbpsICA Sessions 1200 2400CPU 2 X Intel 6 core 2.4 GHz 2 X Intel 6 core 2.4 GHzRAM 48 GB 48 GBSSD 4 x 600 GB, 1x 256 GB 4 x 600 GB, 1x 256 GBHDD 1 x 1 TB HDD 1 x 1 TB HDDInterfaces 4 x 10 GigE, 8 x 1 GigE 4 x 10 GigE, 8 x 1 GigEHot swappable power supplies 2 2Rack unit height 2 2
    14. 14. Existing Hardware Overview Feature Repeater 1500 Repeater 2000Total Throughput 1.5 Gbps 2 GbpsICA Sessions 3500 5000CPU 2 X Intel 6 core 3.1 GHz 2 X Intel 6 core 3.1 GHzRAM 96 GB 96 GBSSD 6 x 600 GB, 1x 256 GB 6 x 600 GB, 1x 256 GBHDD 1 x 1 TB HDD 1 x 1 TB HDDInterfaces 8 x 10 GigE Fail-to-Wire 8 x 10 GigE Fail-to-WireHot swappable power supplies 2 2Rack unit height 2 2
    15. 15. Repeater Features Not Supported on Repeater SDX• Group mode• WCCP mode (Initial release)• Hardware bypass mode (Initial release)• Repeater high-availability mode (FTW to follow)
    16. 16. Key Data Points for Proper Repeater on SDX Sizing• Bandwidth • Consider the sites that do not have Repeater • Make the customer aware of the BW requirements of XD and XA • Network conditions• TCP Connections • Get the concurrent ICA connection count• Network Diagram • Stop installation issues before they happen• Application List • Find out what the business critical applications are
    17. 17. Installation Options
    18. 18. Installation Options• PBR• Inline• Netscaler adds interface and connection flexability • Netscaler HA for multi-appliance • Additional interfaces 1gig and 10 gig • Multi homing options for more complex environments• Remember the issues of Asymmetry still exist
    19. 19. Deployment Options • Routed PBR: • Inline No FTW:
    20. 20. Scalability Options• Deployment options for thousands of concurrent connections
    21. 21. Scalability Options Complex
    22. 22. Repeater Features Not Supported on Repeater onNetScaler SDX• Group mode• WCCP mode• Hardware bypass mode• Repeater high-availability mode (HA) (NetScaler HA is supported)• The Repeater Plug-in ( Med II )
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