Getting Started with Citrix ADC
Deploy a Citrix ADC VPX instance
Optimize Citrix ADC VPX performance on VMware ESX, Linux KVM, and Citrix Hypervisors
Apply Citrix ADC VPX configurations at the first boot of the Citrix ADC appliance in cloud
Install a Citrix ADC VPX instance on Microsoft Hyper-V servers
Install a Citrix ADC VPX instance on Linux-KVM platform
Prerequisites for Installing Citrix ADC VPX Virtual Appliances on Linux-KVM Platform
Provisioning the Citrix ADC Virtual Appliance by using OpenStack
Provisioning the Citrix ADC Virtual Appliance by using the Virtual Machine Manager
Configuring Citrix ADC Virtual Appliances to Use SR-IOV Network Interface
Configuring Citrix ADC Virtual Appliances to use PCI Passthrough Network Interface
Provisioning the Citrix ADC Virtual Appliance by using the virsh Program
Provisioning the Citrix ADC Virtual Appliance with SR-IOV, on OpenStack
Configuring a Citrix ADC VPX Instance on KVM to Use OVS DPDK-Based Host Interfaces
Deploy a Citrix ADC VPX instance on AWS
Deploy a VPX high-availability pair with elastic IP addresses across different AWS zones
Deploy a VPX high-availability pair with private IP addresses across different AWS zones
Configure a Citrix ADC VPX instance to use SR-IOV network interface
Configure a Citrix ADC VPX instance to use Enhanced Networking with AWS ENA
Deploy a Citrix ADC VPX instance on Microsoft Azure
Network architecture for Citrix ADC VPX instances on Microsoft Azure
Configure multiple IP addresses for a Citrix ADC VPX standalone instance
Configure a high-availability setup with multiple IP addresses and NICs
Configure a high-availability setup with multiple IP addresses and NICs by using PowerShell commands
Configure a Citrix ADC VPX instance to use Azure accelerated networking
Configure HA-INC nodes by using the Citrix high availability template with Azure ILB
Configure a high-availability setup with Azure external and internal load balancers simultaneously
Configure address pools (IIP) for a Citrix Gateway appliance
Upgrade and downgrade a Citrix ADC appliance
Solutions for Telecom Service Providers
Load Balance Control-Plane Traffic that is based on Diameter, SIP, and SMPP Protocols
Provide Subscriber Load Distribution Using GSLB Across Core-Networks of a Telecom Service Provider
Authentication, authorization, and auditing application traffic
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Persistence and persistent connections
Override persistence settings for overloaded services
Advanced load balancing settings
Gradually stepping up the load on a new service with virtual server–level slow start
Protect applications on protected servers against traffic surges
Retrieve location details from user IP address using geolocation database
Use source IP address of the client when connecting to the server
Use client source IP address for backend communication in a v4-v6 load balancing configuration
Set a limit on number of requests per connection to the server
Configure automatic state transition based on percentage health of bound services
Use case 2: Configure rule based persistence based on a name-value pair in a TCP byte stream
Use case 3: Configure load balancing in direct server return mode
Use case 6: Configure load balancing in DSR mode for IPv6 networks by using the TOS field
Use case 7: Configure load balancing in DSR mode by using IP Over IP
Use case 10: Load balancing of intrusion detection system servers
Use case 11: Isolating network traffic using listen policies
Use case 12: Configure Citrix Virtual Desktops for load balancing
Use case 13: Configure Citrix Virtual Apps for load balancing
Use case 14: ShareFile wizard for load balancing Citrix ShareFile
Use case 15: Configure layer 4 load balancing on the Citrix ADC appliance
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Authentication and authorization for System Users
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Configuring a CloudBridge Connector Tunnel between two Datacenters
Configuring CloudBridge Connector between Datacenter and AWS Cloud
Configuring a CloudBridge Connector Tunnel Between a Datacenter and Azure Cloud
Configuring CloudBridge Connector Tunnel between Datacenter and SoftLayer Enterprise Cloud
Configuring a CloudBridge Connector Tunnel Between a Citrix ADC Appliance and Cisco IOS Device
CloudBridge Connector Tunnel Diagnostics and Troubleshooting
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Override persistence settings for overloaded services
When a service is loaded or is otherwise unavailable, service to clients is degraded. In this case, you might have to configure the Citrix ADC appliance to temporarily forward to other services the requests that would otherwise be included in the persistence session that is associated with the overloaded service. In other words, you might have to override the persistence setting that is configured for the load balancing virtual server. You can achieve this functionality by setting the skippersistency parameter. When this skippersistence parameter is set, and if the virtual server receives new connections for an overloaded service, the following happens.
- The virtual server disregards any existing persistence sessions that are associated with that service, until the service returns to a state at which it can accept requests.
- Persistence sessions associated with other services are not affected.
This functionality is available for only virtual servers whose type is ANY or UDP.
In Branch Repeater load balancing configurations, you must also configure a load monitor and bind it to the service. The monitor takes the service out of subsequent load balancing decisions until the load on the service is brought below the configured threshold. For information about configuring a load monitor for your virtual server, seeUnderstanding Load Monitors.
You can configure the virtual server to perform one of the following actions with the requests that would otherwise form a part of the persistence session:
森d each request to one of the other services.The virtual server takes a load balancing decision and sends each request to one of the other services based on the load balancing method. If all the services are overloaded, requests are dropped until a service becomes available.
Both wildcard and IP address–based virtual servers support this option. This action is appropriate for all deployments, including deployments in which the virtual server is load balancing Branch Repeater appliances or firewalls.
Bypass the virtual server-service configuration.The virtual server does not take a load balancing decision. Instead, it simply bridges each request through to a physical server based on the destination IP address in the request.
Only wildcard virtual servers of type ANY and UDP support the bypass option. Wildcard virtual servers have a:IP和端口的组合。这个动作是appropriate for deployments in which you are using the virtual server to load balance Branch Repeater appliances or firewalls. In these deployments, the Citrix ADC appliance first forwards a request to a Branch Repeater appliance or firewall, and then forwards the processed response to a physical server. The virtual server sends requests directly to their destination IP addresses in the following conditions.
- You configure the virtual server to bypass the virtual server–service configuration for overloaded services.
- The Branch Repeater appliance or firewall gets overloaded.
The virtual server sends requests directly to their destination IP addresses until the Branch Repeater appliance or firewall can accept requests.
To override persistence settings for overloaded services by using the CLI
At the command prompt, type the following commands to override persistence settings for overloaded services and verify the configuration:
set lb vserver -skippersistency show lb vserver
Example
> set lb vserver mylbvserver -skippersistency ReLb Done > show lb vserver mylbvserver mylbvserver (*:*) - ANY Type: ADDRESS . . . . . . Skip Persistency: ReLb . . . Done >
To override persistence settings for overloaded services by using the GUI
- Navigate toTraffic Management > Load Balancing > Virtual Serversand select the virtual server of type UDP or ANY.
- In the Advanced Settings pane, select Traffic Settings, and specify the type of Skip Persistency.
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