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Getting Started with Citrix ADC
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Deploy a Citrix ADC VPX instance
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Install a Citrix ADC VPX instance on Microsoft Hyper-V servers
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Install a Citrix ADC VPX instance on Linux-KVM platform
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Prerequisites for Installing Citrix ADC VPX Virtual Appliances on Linux-KVM Platform
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Provisioning the Citrix ADC Virtual Appliance by using OpenStack
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Provisioning the Citrix ADC Virtual Appliance by using the Virtual Machine Manager
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Configuring Citrix ADC Virtual Appliances to Use SR-IOV Network Interface
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Configuring Citrix ADC Virtual Appliances to use PCI Passthrough Network Interface
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Provisioning the Citrix ADC Virtual Appliance by using the virsh Program
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Provisioning the Citrix ADC Virtual Appliance with SR-IOV, on OpenStack
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Configuring a Citrix ADC VPX Instance on KVM to Use OVS DPDK-Based Host Interfaces
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Deploy a Citrix ADC VPX instance on Microsoft Azure
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Network architecture for Citrix ADC VPX instances on Microsoft Azure
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Configure multiple IP addresses for a Citrix ADC VPX standalone instance
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Configure a high-availability setup with multiple IP addresses and NICs
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Configure a high-availability setup with multiple IP addresses and NICs by using PowerShell commands
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Configure HA-INC nodes by using the Citrix high availability template with Azure ILB
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Configure address pools (IIP) for a Citrix Gateway appliance
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Upgrade and downgrade a Citrix ADC appliance
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Solutions for Telecom Service Providers
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Load Balance Control-Plane Traffic that is based on Diameter, SIP, and SMPP Protocols
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Provide Subscriber Load Distribution Using GSLB Across Core-Networks of a Telecom Service Provider
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Authentication, authorization, and auditing application traffic
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Configuring authentication, authorization, and auditing policies
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Configuring Authentication, authorization, and auditing with commonly used protocols
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Use an on-premises Citrix Gateway as the identity provider for Citrix Cloud
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Troubleshoot authentication issues in Citrix ADC and Citrix Gateway with aaad.debug module
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Distributing traffic across cluster nodes
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Using cluster link aggregation
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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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Retrieve location details from user IP address using geolocation database
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Use source IP address of the client when connecting to the server
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Use client source IP address for backend communication in a v4-v6 load balancing configuration
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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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Authentication and authorization
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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 Citrix ADC Appliance and Cisco IOS Device
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CloudBridge Connector Tunnel Diagnostics and Troubleshooting
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Synchronizing Configuration Files in a High Availability Setup
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Restricting High-Availability Synchronization Traffic to a VLAN
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Understanding the High Availability Health Check Computation
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Managing High Availability Heartbeat Messages on a Citrix ADC Appliance
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Remove and Replace a Citrix ADC in a High Availability Setup
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Using cluster link aggregation
Cluster link aggregation is a group of interfaces of cluster nodes. It is an extension of Citrix ADC link aggregation. The only difference is that, while link aggregation requires the interfaces to be from the same device, in cluster link aggregation, the interfaces are from different nodes of the cluster. For more information about link aggregation, see Configuring Link Aggregation.
Important
Cluster link aggregation is supported for a cluster of hardware (MPX) appliances.
Cluster link aggregation is supported for a cluster of virtual (VPX) appliances that are deployed on ESX and KVM hypervisors, with the following restrictions:
Dedicated interfaces must be used. It means that the interfaces must not be shared with other virtual machines.
When a node becomes INACTIVE, the corresponding cluster LA interface is marked as power DOWN, so that the data traffic is not sent to an INACTIVE node.
When a node becomes ACTIVE, the corresponding cluster LA interface is marked as power ON.
If the cluster link aggregation member interfaces are manually disabled or if cluster link aggregation itself is manually disabled, then interface power down capability is achieved only by the LACP timeout mechanism.
Jumbo MTU is not supported on LACP cluster link aggregation.
Note: Cluster link aggregation is not supported on VPX appliances that are deployed on XenServer, AWS, and Hyper-V.
- Starting from 12. 0 release, cluster link aggregation is supported on Citrix ADC SDX appliances.
- The number of interfaces that can be bound to cluster LA is 16 (from each node). The maximum number of interfaces in cluster LA can be (16 * n), where n is the number of nodes in a cluster. The total number of interfaces in cluster LA depends on the number of interfaces for every port channel on the upstream switch.
- If a Citrix ADC appliance uses Intel Fortville interfaces, the switchover of a Citrix ADC cluster node to passive mode might cause a few seconds of outage with CLAG. The issue occurs because LACP is enabled for CLAG to function properly, and the outage time depends on NIC LACP timers.
For example, consider a three-node cluster where all three nodes are connected to the upstream switch. A cluster LA channel (CLA/1) is formed by binding interfaces 0/1/2, 1/1/2, and 2/1/2.
Figure 1. Cluster Link Aggregation topology
A cluster LA channel has the following attributes:
- Each channel has a unique MAC agreed upon by cluster nodes.
- The channel can bind both local and remote nodes’ interfaces.
- A maximum of four cluster LA channels are supported in a cluster.
- Backplane interfaces cannot be part of a cluster LA channel.
- When an interface is bound to a cluster LA channel, the channel parameters have precedence over the network interface parameters. A network interface can be bound to one channel only.
- Management access to a cluster node, must not be configured on a cluster LA channel (for example, CLA/1) or its member interfaces. This is because when the node is INACTIVE, the corresponding cluster LA interface is marked as power down, and therefore looses management access.
Figure 2. Traffic distribution flow using cluster LA
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