Configuration Supporting Multiple Management IP Networks

Third-party certificate changes

You can access EFA at different IP addresses (one for each of the new networks).

Update the third-party SSL certificates with the external IP address of management interfaces of EFA. Re-generate the certificates when you add a new network. You can replace the generated certificate with your own certificates (third-party certificates), which must have a reference to each of the EFA IP addresses.

Third party certificate must contain a Subject Alt Name (SAN) field for each EFA IP address. In particular, if you have added management access for external networks, include the EFA management IP address for each external network. The openssl command supports a flag for adding a SAN IP address.

For example:

-addext "subjectAltName = IP.1:192.168.30.40"

Day 0 and installation changes

• In a high-availability deployment, the VIP (virtual IP address) that you enter as part of installation remains the same. This VIP is distinguished from those added during Multiple Management IP Network operations and cannot be deleted.
• During installation, you are prompted to create additional Multiple Management IP Networks.
• Once you have specified all the IP address and VLAN combinations, installation proceeds as with earlier releases of EFA.
• Keepalived, ingress, and interface changes are done as part of installation on both the nodes of a high-availability deployment.
• Configuration is persisted for RMA purposes, so that the Supportsave function has data for debugging issues.

Day 1 to n changes

• You can add and delete IP address and VLAN combinations after installation using the EFA CLI or the REST APIs.
• Keepalived, ingress, and interface changes are done as part of this operation on both the nodes.
• Configuration is persisted for RMA purposes, so that the Supportsave function has data for debugging issues.
• The backup and restore process also restores the previous configuration of the sub-interfaces.

Installer changes

During installation, you are asked whether you want to add additional management networks for connection to EFA. If you select Yes, you are then asked to provide three input parameters:

• Sub-interface name, which is a unique name that contains no more than 11 characters, no white space, and no % or / characters.
• ID of the VLAN that the management network uses to tag traffic. Valid values range from 2 through 4093.
• IP subnet address in CIDR format. The subnet must not overlap with any IP subnet that you have already provided.

You repeat this process until you have finished adding all the sub-interface information you need. Then you select No to continue with installation. For details, see the installation and upgrade information in the Extreme Fabric Automation Deployment Guide, 2.4.0 .