Multiple Management IP Network

EFA is supported on multiple management IP networks, providing access to EFA from servers that are on different subnets.

Overview

The Multiple Management IP Network feature offers the following support:

Supports single node and multi-node deployments
Supports TPVM deployments and server and VM-based deployments
You can add additional management networks during EFA installation and after EFA installation.
You can delete management networks after EFA installation.
The configuration of the multiple networks is migrated during all EFA upgrade scenarios: single node to single node, single node to multi-node, and multi-node to single node.
If you do not need multiple management networks, simply reply "no" when prompted during EFA installation or upgrade. For instructions, see the installation and upgrade topics in the Extreme Fabric Automation Deployment Guide, 2.4.0.
The feature supports up to 6 networks.
The RMA, backup, restore, and upgrade functions are all supported with the multiple management IP feature.

In a multi-node deployment, the sub-interface with the VLAN is created under the same NIC as the VIP destination. In a single-node deployment, the sub-interface is created under the NIC that you specified as the host IP installation (if there are multiple NICs). Creating sub-interfaces on different NICs of the server is not supported.
EFA does not validate to the newer IP subnets. You are responsible for ensuring reachability.
Changing IP subnets is not supported. To make any modifications to the IP subnet or VLAN or name, you must delete the IP subnet and add a new one.
Because of the EFA-wide changes required by this feature (for example, updates to the Ingress controller), you can expect about 20 to 30 seconds of downtime during add and delete operations.
In a high-availability deployment, both nodes have to be up and available during add and delete operations (because sub-interface creation and keepalived changes are unique to the node). Because this is an infrequent operation, you should verify that both the nodes are up and in READY state before beginning this operation.