diff --git a/rpc_deployment/vars/config_vars/container_config_neutron.yml b/rpc_deployment/vars/config_vars/container_config_neutron.yml
index 0e5e2174df..d7a1b29c07 100644
--- a/rpc_deployment/vars/config_vars/container_config_neutron.yml
+++ b/rpc_deployment/vars/config_vars/container_config_neutron.yml
@@ -47,3 +47,4 @@ sysctl_options:
   - { key: 'net.ipv4.conf.all.rp_filter', value: 0 }
   - { key: 'net.ipv4.conf.default.rp_filter', value: 0 }
   - { key: 'net.ipv4.ip_forward', value: 1 }
+  - { key: 'net.netfilter.nf_conntrack_max', value: 262144 }
diff --git a/rpc_deployment/vars/config_vars/container_config_nova_compute.yml b/rpc_deployment/vars/config_vars/container_config_nova_compute.yml
index 0ff3f8606e..76c5312209 100644
--- a/rpc_deployment/vars/config_vars/container_config_nova_compute.yml
+++ b/rpc_deployment/vars/config_vars/container_config_nova_compute.yml
@@ -55,3 +55,4 @@ sysctl_options:
   - { key: 'net.ipv4.conf.all.rp_filter', value: 0 }
   - { key: 'net.ipv4.conf.default.rp_filter', value: 0 }
   - { key: 'net.ipv4.ip_forward', value: 1 }
+  - { key: 'net.netfilter.nf_conntrack_max', value: 262144 }