VRRP Configuration

In support of load balancing and high-availability functions, the Universal Compute Platform relies on Virtual Router Redundancy Protocol (VRRP) to provide IP abstraction to key functionality. VRRP is critical in the configuration model.

The following operation settings must be defined as part of the VRRP configuration of member nodes:

Priority— VRRP uses priority settings as a mechanism to arbitrate mastery of the state of exchanges across members of the cluster.
The node with the higher priority defaults to the master. However, in the case of failovers of the master node, VRRP algorithms assign mastery to the next higher priority member of the cluster. Therefore, it is important to properly assign corresponding priority settings to each node, so that their hierarchical priority in terms of VRRP state ownership is clear.

As a best practice:
- Designate node 1 as the highest priority, node 2 for second highest priority, and nodes 3-6 as lower priority.
- The same priority should be used across all services (ICC, Services)
RouterID — This setting allows segmentation of a routing domain, and it is important to separate from any other VRRP uses on the same network segment. The assigned value is arbitrary, but the value must not overlap when another VRRP usage is visible in the attached network segments.

Inter-Cluster VRRP Configuration

An Inter-Cluster Connection refers to the back-end interaction and synchronization between all the members of a cluster. Minimum required connection requires 10 Gbps between nodes.

Table 1. Inter-Cluster Connection VRRP Configuration
	Nodes 1 -6 (Port #)
ICC	Node 1 ICC IP /CIDR Node 2 ICC IP/CIDR Node 3 ICC IP/CIDR Node 4 ICC IP/CIDR Node 5 ICC IP/CIDR Node 6 ICC IP/CIDR
VLAN	VLAN Tagged/Untagged
Port type	Physical
VRRP
VRRP IP addresses	ICC VRRP IP
Priority	Set a unique priority for each node. For example: Highest (200) Next (150) Medium (100) Next (75) Next (50) Low (25)
Router ID	ID (2)

Services VRRP Configuration

The VRRP configuration relates to the number of services you are exposing. Configure a VRRP IP address (VIP) for each service.

Table 2. Services VRRP Configuration
	Nodes 1-6 (Port #)
Data Port	Node Port IP /CIDR. Unique Port IP for each node.
VLAN	VLAN Tagged/Untagged
Port type	Physical
VRRP
VRRP IP address (VIP)	6 VIP addresses. Unique VIP for each node
Priority	Unique priority value for each VIP
Router ID	ID (1)