There are only two ways of making an IP address “live” on the Azure fabric. Given that most use cases require additional load balancing internally, you typically need an additional internal Azure Load Balancer. Out of the box, the template caters for a single load balanced public facing VIP. HA using Independent Network Configuration (INC) mode.1 x VIP for the public IP that is housed on the Azure LB (the ADC owns this IP, the ALB activates it on the fabric).1 x Management (NSIP) interface (with a public IP attached).3 x Public IP Address (2 of these are for management and need to be killed asap)Įach ADC is configured with the defaults below:.6 x Network Security Groups, 1 per interface.6 x Network Interfaces across three unique subnets (Management, Frontend, Backend).The Availability Zone template already includes some of the relevant changes (such as deploying the Azure Load Balancer (ALB) and public IP addresses at the appropriate Sku).ĭefault output of the ADC HA Availability Set Template: As such, you are best off switching to a standard Sku load balancer. Basic load balancers are limited in their connectivity and reachability capability in advanced networking configurations, are slow and do not offer the monitoring capability you are likely wanting. One of the challenges with base template currently is that it deploys all public IP and Azure ALB components at the basic Sku, which quite frankly is nasty to work with. To address a load of frowning ADC people before they get grumpy, I do not for a second claim to be an ADC guy, nor do I typically think that HA for ADC deployments are a good use of the appliances (GSLB is much nicer), however I am a consultant who has been through a few of these, so here are my learnings should customers wants to to deploy a HA pair in Microsoft Azure. This post will focus on deploying Citrix Application Delivery Controllers (ADCs) in Microsoft Azure using the pre-defined Availability Set deployment using a 3 Network Interface (NIC), 3 IP model.
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