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Getting Started with Citrix NetScaler
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Deploy a Citrix NetScaler VPX instance
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Install a NetScaler VPX instance on XenServer
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Configuring NetScaler Virtual Appliances to use Single Root I/O Virtualization (SR-IOV) Network Interfaces
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Install a Citrix NetScaler VPX instance on Microsoft Hyper-V servers
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Install a NetScaler VPX instance on Linux-KVM platform
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Prerequisites for Installing NetScaler VPX Virtual Appliances on Linux-KVM Platform
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Provisioning the NetScaler Virtual Appliance by using OpenStack
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Provisioning the NetScaler Virtual Appliance by using the Virtual Machine Manager
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Configuring NetScaler Virtual Appliances to Use SR-IOV Network Interface
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Configuring NetScaler Virtual Appliances to use PCI Passthrough Network Interface
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Provisioning the NetScaler Virtual Appliance by using the virsh Program
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Deploying NetScaler VPX Instances on AWS
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Upgrade and downgrade a NetScaler appliance
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Overriding Static Proximity Behavior by Configuring Preferred Locations
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Example of a Complete Parent-Child Configuration Using the Metrics Exchange Protocol
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Configuring Global Server Load Balancing for DNS Queries with NAPTR records
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Using the EDNS0 Client Subnet Option for Global Server Load Balancing
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Persistence and persistent connections
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Advanced load balancing settings
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Gradually stepping up the load on a new service with virtual server–level slow start
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Protect applications on protected servers against traffic surges
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Use source IP address of the client when connecting to the server
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Set a limit on number of requests per connection to the server
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Configure automatic state transition based on percentage health of bound services
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Use case 2: Configure rule based persistence based on a name-value pair in a TCP byte stream
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Use case 3: Configure load balancing in direct server return mode
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Use case 6: Configure load balancing in DSR mode for IPv6 networks by using the TOS field
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Use case 7: Configure load balancing in DSR mode by using IP Over IP
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Use case 10: Load balancing of intrusion detection system servers
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Use case 11: Isolating network traffic using listen policies
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Use case 14: ShareFile wizard for load balancing Citrix ShareFile
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Configuring a CloudBridge Connector Tunnel between two Datacenters
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Configuring CloudBridge Connector between Datacenter and AWS Cloud
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Configuring a CloudBridge Connector Tunnel Between a Datacenter and Azure Cloud
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Configuring CloudBridge Connector Tunnel between Datacenter and SoftLayer Enterprise Cloud
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Configuring a CloudBridge Connector Tunnel Between a NetScaler Appliance and Cisco IOS Device
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CloudBridge Connector Tunnel Diagnostics and Troubleshooting
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Configure VPX instances to use single root I/O virtualization (SR-IOV) network interfaces
After you have installed and configured a NetScaler VPX instance on XenServer, you can configure the virtual appliance to use SR-IOV network interfaces.
Limitations
XenServer does not support the following features on SRIOV interfaces:
- L2 mode switching
- Clustering
- Admin partitioning [Shared VLAN mode]
- High Availability [Active - Active mode]
- Jumbo frames
- IPv6 protocol in Cluster environment
Prerequisites
On the XenServer host, ensure that you:
- Add the Intel 82599 Network Interface Card (NIC) to the host.
- Blacklist the ixgbevf driver by adding the following entry to the /etc/modprobe.d/blacklist.conf file:
blacklist ixgbevf - Enable SR-IOV Virtual Functions (VFs) by adding the following entry to the /etc/modprobe.d/ixgbe file:
options ixgbe max_vfs=<number_of_VFs> where <number_VFs> is the number of SR-IOV VFs that you want to create. - Verify that SR-IOV is enabled in BIOS.
IXGBE driver version 3.22.3 is recommended.
Assign SR-IOV VFs to the VPX instance by using the XenServer host
To assign SR-IOV network interfaces to NetScaler VPX instance, follow these steps:
1. On the XenServer host, use the following command to assign the SR-IOV VFs to the NetScaler VPX instance:
xe host-call-plugin plugin=iovirt host-uuid=<Xen host UUID> fn=assign_free_vf args:uuid=<Netscalar VM UUID> args:ethdev=<interface name> args:mac=<mac addr>
Where:
• <Xen host UUID> is the UUID of the XenServer host.
• <Netscalar VM UUID> is the UUID of the NetScaler VPX instance.
• <interface name> is the interface for the SR-IOV VFs.
• <mac addr > is the mac address of the SR-IOV VF.
Note
Specify the mac address that you want use in the args:mac= parameter, if not specified, the iovirt script randomly generates and assigns a mac address. Also, if you want use the SR-IOV VFs in Link Aggregation mode, make sure that you specify the mac address as 00:00:00:00:00:00.
2. Boot the NetScaler VPX instance.
Unassign SR-IOV VFs to the VPX instance by using the XenServer host
If you have assigned an incorrect SR-IOV VFs or if you want modify the a assigned SR-IOV VFs, you need to unassign and reassign the SR-IOV VFs to the NetScaler VPX instance.
To unassign SR-IOV network interface assigned to a NetScaler VPX instance, follow these steps:
1. On the XenServer host, use the following command to assign the SR-IOV VFs to the NetScaler VPX instance and reboot the NetScaler VPX instance:
xe host-call-plugin plugin=iovirt host-uuid=<Xen_host_UUID> fn=unassign_all args:uuid=<Netscalar_VM_UUID>
Where:
• <Xen_host_UUID> - The UUID of the XenServer host.
• <Netscalar_VM_UUID> - The UUID of the NetScaler VPX instance
2. Boot the NetScaler VPX instance.
Configuring VLAN on the SR-IOV Interface
Important
While you are assigning the SR-IOV VFs to the NetScaler VPX instance, make sure that you specify MAC address 00:00:00:00:00:00 for the VFs.
To use the SR-IOV virtual functions in link aggregation mode, you need to disable spoof checking for virtual functions that you have created. On the XenServer host, use the following command to disable spoof checking:
ip link set <interface_name> vf <VF_id> spoofchk off
Where:
- <interface_name> is the interface name.
- <VF_id> is the virtual function ID.
After disabling spoof checking for all the Virtual Function that you have created, restart the NetScaler VPX instance and configure link aggregation. For instructions, see Configure link aggregation.
Configure VLAN on the SR-IOV interface
You can configure VLAN on the SR-IOV Virtual Functions, for instructions, see Configuring a VLAN.
Important
Make sure that the XenServer host does not contain VLAN settings for the VF interface.
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