When planning to deploy a load-balancing service as a managed node, which ACI configuration must be included?
Click on the arrows to vote for the correct answer
A. B. C. D.B.
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/1-x/ACI_Best_Practices/b_ACI_Best_Practices/When planning to deploy a load-balancing service as a managed node in the Cisco Application Centric Infrastructure (ACI), the configuration that must be included depends on the type of load balancing being deployed.
Option A: BGP ECMP BGP ECMP (Equal Cost Multipath) can be used for load balancing traffic across multiple equal-cost paths. BGP ECMP is a commonly used method to distribute traffic across multiple paths in a data center environment. However, BGP ECMP alone is not sufficient for load balancing server traffic, as it is only able to balance traffic based on IP addresses and routing metrics, not based on server load or application-specific factors.
Option B: Layer 4 to Layer 7 device package A Layer 4 to Layer 7 device package provides integration between ACI and a Layer 4 to Layer 7 load balancing device, such as a hardware load balancer or a virtual load balancer. This package enables ACI to communicate with the load balancer and automate the configuration of load balancing policies. The Layer 4 to Layer 7 device package is typically used for load balancing traffic based on application-specific factors such as session persistence, SSL offloading, and health checks.
Option C: Inline load-balancing device An inline load-balancing device is a device that sits between the client and server, and is responsible for distributing traffic between multiple servers. Inline load balancing can be performed by a Layer 4 to Layer 7 device, or by a software-based load balancer running on a server. Inline load balancing is typically used for load balancing traffic based on server load, rather than application-specific factors.
Option D: ITD Intelligent Traffic Director (ITD) is a technology developed by Cisco that allows for the distribution of traffic across multiple servers using a programmable hardware module. ITD can be used to load balance traffic for applications such as web servers, DNS servers, and email servers. ITD provides high-performance, low-latency traffic distribution and can scale to support large-scale data center environments.
In summary, when planning to deploy a load-balancing service as a managed node in ACI, the configuration that must be included depends on the type of load balancing being deployed. For load balancing based on application-specific factors, a Layer 4 to Layer 7 device package is required. For load balancing based on server load, an inline load-balancing device can be used. BGP ECMP can be used for load balancing traffic across multiple equal-cost paths, but it is not sufficient for load balancing server traffic in and of itself. Finally, ITD is a Cisco-developed technology that can be used for load balancing web servers, DNS servers, and email servers in large-scale data center environments.