Prerequisites for ExtremeCloud Edge Installation

Address planning is the fundamental step in successful deployment of the Universal Compute Platform to support installing ExtremeCloud applications such as ExtremeCloud IQ. It is important to understand the following:

Decide how you will deploy and access the services offered by the cluster. Is the cluster going to serve applications that operate only within the on-premises installation? Or is application access going to require external access? Pre-determination of the IP address and connectivity structure are fundamental to a successful deployment. These deployment decisions drive the configuration choices.
Consider the address plan of the installation, including how the cluster is going to be presented externally via a firewall.
Each externally exposed address must be mapped to an internal VRRP of the cluster. You can either directly expose the VRRP IP addresses for the three service sets directly through a firewall, or in the case of NAT translation, ensure that the externally available IP addresses are mapped 1:1 to the internal services, and that the correponding application ports are allowed for access (per firewall rules definition).

Important

Before you begin step-by-step configuration, make sure that you clearly understand and document all the elements of the network presence and topology related to the deployment.

The Inter-Cluster Connection (ICC) IP address is critical to the continuous operation of the system. If address definitions for ICC require re-addressing, the entire cluster will need to be rebuilt and the application re-deployed in order to re-establish all the correct references of services within the cluster.

It is strongly recommended that the entire IP address structure for all services be defined once and not changed. Re-addressing can expose internal dependencies on references to mapped services and therefore affect the integrity and stability of the deployed installation.