Describe VRRP-A (high availability) and aVCS interoperability.
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A. B. C. D.D
VRRP-A (Virtual Router Redundancy Protocol-Advanced) is a high availability protocol that provides redundancy and failover capabilities for a network's default gateway. VRRP-A is an enhanced version of the standard VRRP protocol, providing more flexibility, scalability, and fault tolerance.
aVCS (Advanced Virtual Chassis System) is a technology that enables multiple physical A10 Thunder devices to operate as a single logical system. aVCS allows for simplified management, increased scalability, and higher availability of network resources.
Regarding the interoperability between VRRP-A and aVCS, the correct answer is A: Enabling VRRP-A requires that aVCS is operational. This means that VRRP-A is dependent on aVCS to provide high availability capabilities.
When aVCS is configured on multiple A10 Thunder devices, they operate as a single virtual device. In this scenario, aVCS provides automatic failover capabilities, meaning that if one device fails, the other device(s) take over its functions without disruption to the network. VRRP-A is used to provide redundancy for the default gateway in the aVCS cluster.
In other words, VRRP-A provides failover for the virtual IP address (VIP) associated with the aVCS cluster, which serves as the default gateway for the network. When a primary device fails, VRRP-A ensures that the VIP is moved to the secondary device, and the traffic is redirected to the new default gateway.
Therefore, it is essential to have aVCS operational before configuring VRRP-A to ensure that high availability capabilities are provided at both the device and network levels.
Option B is incorrect because aVCS can operate independently of VRRP-A. However, using VRRP-A in conjunction with aVCS provides an additional layer of redundancy and failover capability.
Option C is also incorrect because VRRP-A and aVCS are not completely independent of each other. As mentioned, VRRP-A relies on aVCS to provide high availability capabilities for the network's default gateway.
Option D is incorrect because VRRP-A and aVCS do not need to function simultaneously. While they can work together, each technology provides redundancy and failover capabilities independent of the other.