diff --git a/group_vars/talos_cluster/vars.yml b/group_vars/talos_cluster/vars.yml
index 88eac1339..f68289abc 100644
--- a/group_vars/talos_cluster/vars.yml
+++ b/group_vars/talos_cluster/vars.yml
@@ -35,23 +35,23 @@ additional_etc_hosts:
 vcompute_hostnames: "{{ stack_prefix }}-vcompute[01-03]"
 vcompute_sockets: 4
 vcompute_cores_per_socket: 1
-vcompute_real_memory: 7821
+vcompute_real_memory: 7820
 vcompute_max_cpus_per_node: "{{ vcompute_sockets * vcompute_cores_per_socket - 2 }}"
 vcompute_max_mem_per_node: "{{ vcompute_real_memory - vcompute_sockets * vcompute_cores_per_socket * 512 }}"
 vcompute_local_disk: 270000
 vcompute_features: 'tmp08'
 vcompute_ethernet_interfaces:
-  - 'eth0'
-  - 'eth1'
+  - 'vlan983'
+  - 'vlan985.isilon'
 ui_hostnames: "{{ slurm_cluster_name }}"
 ui_sockets: 4
 ui_cores_per_socket: 1
-ui_real_memory: 7821
+ui_real_memory: 7820
 ui_local_disk: 0
 ui_features: 'prm08,tmp08'
 ui_ethernet_interfaces:
-  - 'eth0'
-  - 'eth1'
+  - 'vlan983'
+  - 'vlan985.isilon'
 ssh_host_signer_ca_private_key: "{{ ssh_host_signer_ca_keypair_dir }}/umcg-hpc-development-ca"
 use_ldap: yes
 create_ldap: no