Adding interfaces into on-box DNS Load Balancing

[Panther411]

We just added in a new AFF A400 in our prod cluster and we'll be needing to add 4 new network interfaces (2 CIFS and 2 NFS)  in for load balancing.  

On-box load balancing is configured to use delegation.  What is the impact when configuring new network interfaces for existing on-box load balancing if any?

[Ontapforrum · Accepted solution]

It should simply work according to the LIF's-weight. Every LIF is assigned a weight based on its port load and CPU utilization of its home node (All this is handled automatically by the on-box DNS Load balancer). LIFs that are on less-loaded ports have a higher probability of being returned in a DNS query, hence no impact of adding  adding Lifs. 

Add or remove a LIF from a load balancing zone:
https://docs.netapp.com/us-en/ontap/networking/add_or_remove_a_lif_from_a_load_balancing_zone.html

Related kb: (More info here)
https://www.netapp.com/pdf.html?item=/media/19370-tr-4523.pdf
https://docs.netapp.com/us-en/ontap/networking/how_dns_load_balancing_works.html
https://red8.com/resources/knowledge-base/configuration/netapp-dns-delegation/
https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/How_to_set_up_DNS_load_balancing_in_ONTAP