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CPNR 10 / Best topology to deploy a failover on pair local servers

Hans Martinez
Level 1
Level 1

Hi, anyone how can help to me and validate or recommend a topology to implemente a cluster of CNR for DHCP on failover pair; using a second Nic to that redundancy service?

Topology one:

Captura de pantalla 2023-02-28 a las 16.01.04.png

It's posible implement a failover-pair if de IP address on second NIC (ens224) are unreachable from regional cluster?; I Tried it's but when I created the failover on regional server that is posible only with NIC 1 (ens192); the other option that I tried is create the failover in the local servers using the NIC2 (ens224) and the communication come up on the pairs; but on the two variants exist an inconsistency in the configuration to regional or local server and a issue of the reference IP to failover pair.

Topology two:

Captura de pantalla 2023-02-28 a las 16.17.54.png

To this new topology, always use the failover pair on second NIC (ens224); regional cluster don't have connectivity to Nic 2 (ens224) on local server 1. Local Server have connectivity from both Nic's.

Topology three:

Captura de pantalla 2023-02-28 a las 16.12.02.png

This topology works; but it's recommended?

Topology four:

Captura de pantalla 2023-02-28 a las 16.40.40.png

 I understand that this last topology it's a traditional implementation?

 Exist an option to implement the failover over a second NIC exclusively or the las two (3rd and 4th) are the best way to implement?

 Thank You by your support and comments.

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