Historically, application delivery controller (ADC) generally worked on the bottom layer of the broadcast domains without logical separation. In terms of TCP / IP network to these areas are configured and configuration Layer 2 VLANs are just one example of the creation of these small areas. VLANs but have limited visibility and reach within the layer 2/3. As such devices had reduced ADC protocols and conspicuity applications and upper layer traffic did not get any benefits. Yet the multi-tenant environments frequently require the same IP addresses are supported across multiple networks of different clients.
NetScaler with "areas of movement" provide visibility all the way to the layer 7 and core applications. These areas allow overlap backend IP address spaces within a single instance. Admins can now associate a domain traffic with a VLAN, and then for that domain VLAN / traffic, freely use any IP address, for shears, VIP and back-end services without having to worry about property disputes intellectual between different areas of traffic. A key advantage is that the separation of applications in a single device; applications in a specified domain can not see the packets belonging to this area.
The main deployment scenario for the areas of circulation is about multi-tenancy and having routing / separate traffic flows in one physical or virtual NetScaler appliance. This configures the fields of traffic to create multiple virtual NetScaler instances with IP duplication within the same network and the environment. Administrators can define multiple networks based on VLAN and manage independently. IP addresses and corresponding IP-based routing policies may overlap without leakage of traffic from one network to another. Each client is totally private.
NetScalertraffic areas are a cost effective way to deploy very "load balancing-as-a-service" in a cloud environment among many other use cases. So while you may not need the full power of NetScaler SDX multi-tenant solutions with their complete isolation calculation processing, memory, and SSL I / O, it is good to know that you have an alternative.
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