diff --git a/node-daemon/pvcd.sample.yaml b/node-daemon/pvcd.sample.yaml
index a06792e2..cb51485f 100644
--- a/node-daemon/pvcd.sample.yaml
+++ b/node-daemon/pvcd.sample.yaml
@@ -127,11 +127,23 @@ pvc:
         # devices: Interface devices configuration
         devices:
           # upstream: Upstream physical interface device
-          upstream: ens4
+          upstream:
+            # name: Upstream interface name
+            name: ens4
+            # mtu: Upstream interface MTU; use 9000 for jumbo frames (requires switch support)
+            mtu: 1500
           # cluster: Cluster (VNIC) physical interface device
-          cluster: ens4
-          # storage: Storage (Ceph) physical interface device
-          storage: ens4
+          cluster:
+            # name: Cluster (VNIC) interface name
+            name: ens4
+            # mtu: Cluster (VNIC) interface MTU; use 9000 for jumbo frames (requires switch support)
+            mtu: 1500
+          # storage: Storage (Ceph OSD) physical interface device
+          storage:
+            # name: Storace (Ceph OSD) interface name
+            name: ens4
+            # mtu: Storage (Ceph OSD) interface MTU; use 9000 for jumbo frames (requires switch support)
+            mtu: 1500
         # addresses: Special network addresses; by-id denotes "address octet equals host number", e.g. .3 for host3
         addresses:
           # upstream: Network address for upstream network, options: None, by-id, <static>/<mask>
diff --git a/node-daemon/pvcd/Daemon.py b/node-daemon/pvcd/Daemon.py
index 4c0a04f1..31569799 100644
--- a/node-daemon/pvcd/Daemon.py
+++ b/node-daemon/pvcd/Daemon.py
@@ -179,11 +179,14 @@ def readConfig(pvcd_config_file, myhostname):
                 'pdns_postgresql_dbname': o_config['pvc']['coordinator']['dns']['database']['name'],
                 'pdns_postgresql_user': o_config['pvc']['coordinator']['dns']['database']['user'],
                 'pdns_postgresql_password': o_config['pvc']['coordinator']['dns']['database']['pass'],
-                'vni_dev': o_config['pvc']['system']['configuration']['networking']['devices']['cluster'],
+                'vni_dev': o_config['pvc']['system']['configuration']['networking']['devices']['cluster']['name'],
+                'vni_mtu': o_config['pvc']['system']['configuration']['networking']['devices']['cluster']['mtu'],
                 'vni_dev_ip': o_config['pvc']['system']['configuration']['networking']['addresses']['cluster'],
-                'storage_dev': o_config['pvc']['system']['configuration']['networking']['devices']['storage'],
+                'storage_dev': o_config['pvc']['system']['configuration']['networking']['devices']['storage']['name'],
+                'storage_mtu': o_config['pvc']['system']['configuration']['networking']['devices']['storage']['mtu'],
                 'storage_dev_ip': o_config['pvc']['system']['configuration']['networking']['addresses']['storage'],
-                'upstream_dev': o_config['pvc']['system']['configuration']['networking']['devices']['upstream'],
+                'upstream_dev': o_config['pvc']['system']['configuration']['networking']['devices']['upstream']['name'],
+                'upstream_mtu': o_config['pvc']['system']['configuration']['networking']['devices']['upstream']['mtu'],
                 'upstream_dev_ip': o_config['pvc']['system']['configuration']['networking']['addresses']['upstream'],
             }
         except Exception as e:
@@ -311,33 +314,37 @@ logger.out('Starting pvcd on host {}'.format(myfqdn), state='s')
 if enable_networking:
     # VNI configuration
     vni_dev = config['vni_dev']
+    vni_mtu = config['vni_mtu']
     vni_dev_ip = config['vni_dev_ip']
     logger.out('Setting up VNI network interface {}'.format(vni_dev, vni_dev_ip), state='i')
-    common.run_os_command('ip link set {} mtu 9000 up'.format(vni_dev))
+    common.run_os_command('ip link set {} mtu {} up'.format(vni_dev, vni_mtu))
 
     # Cluster bridge configuration
     logger.out('Setting up Cluster network bridge on interface {} with IP {}'.format(vni_dev, vni_dev_ip), state='i')
     common.run_os_command('brctl addbr brcluster')
     common.run_os_command('brctl addif brcluster {}'.format(vni_dev))
-    common.run_os_command('ip link set brcluster mtu 9000 up')
+    common.run_os_command('ip link set brcluster mtu {} up'.format(vni_mtu))
     common.run_os_command('ip address add {} dev {}'.format(vni_dev_ip, 'brcluster'))
 
     # Storage configuration
     storage_dev = config['storage_dev']
+    storage_mtu = config['storage_mtu']
     if storage_dev == vni_dev:
         storage_dev = 'brcluster'
+        storage_mtu = vni_mtu
     storage_dev_ip = config['storage_dev_ip']
     logger.out('Setting up Storage network on interface {} with IP {}'.format(storage_dev, storage_dev_ip), state='i')
-    common.run_os_command('ip link set {} mtu 9000 up'.format(storage_dev))
+    common.run_os_command('ip link set {} mtu {} up'.format(storage_dev, storage_mtu))
     common.run_os_command('ip address add {} dev {}'.format(storage_dev_ip, storage_dev))
 
     # Upstream configuration
     if config['upstream_dev']:
         upstream_dev = config['upstream_dev']
+        upstream_mtu = config['upstream_mtu']
         upstream_dev_ip = config['upstream_dev_ip']
         upstream_dev_gateway = config['upstream_gateway']
         logger.out('Setting up Upstream network on interface {} with IP {}'.format(upstream_dev, upstream_dev_ip), state='i')
-        common.run_os_command('ip link set {} up'.format(upstream_dev))
+        common.run_os_command('ip link set {} mtu {} up'.format(upstream_dev, upstream_mtu))
         common.run_os_command('ip address add {} dev {}'.format(upstream_dev_ip, upstream_dev))
         if upstream_dev_gateway:
             common.run_os_command('ip route add default via {} dev {}'.format(upstream_dev_gateway, upstream_dev))
diff --git a/node-daemon/pvcd/VXNetworkInstance.py b/node-daemon/pvcd/VXNetworkInstance.py
index 1c982865..b9320696 100644
--- a/node-daemon/pvcd/VXNetworkInstance.py
+++ b/node-daemon/pvcd/VXNetworkInstance.py
@@ -437,14 +437,18 @@ add rule inet filter forward ip6 saddr {netaddr6} counter jump {vxlannic}-out
                 self.vlan_nic
             )
         )
+
+        vx_mtu = self.config.vni_mtu
         common.run_os_command(
-            'ip link set {} mtu 8800 up'.format(
-                self.vlan_nic
+            'ip link set {} mtu {} up'.format(
+                self.vlan_nic,
+                vx_mtu
             )
         )
         common.run_os_command(
-            'ip link set {} mtu 8800 up'.format(
-                self.bridge_nic
+            'ip link set {} mtu {} up'.format(
+                self.bridge_nic,
+                vx_mtu
             )
         )
         common.run_os_command(
@@ -481,14 +485,18 @@ add rule inet filter forward ip6 saddr {netaddr6} counter jump {vxlannic}-out
                 self.vxlan_nic
             )
         )
+
+        vx_mtu = self.config.vni_mtu - 50
         common.run_os_command(
-            'ip link set {} mtu 8800 up'.format(
-                self.vxlan_nic
+            'ip link set {} mtu {} up'.format(
+                self.vxlan_nic,
+                vx_mtu
             )
         )
         common.run_os_command(
-            'ip link set {} mtu 8800 up'.format(
-                self.bridge_nic
+            'ip link set {} mtu {} up'.format(
+                self.bridge_nic,
+                vx_mtu
             )
         )
         common.run_os_command(