MTU¶

Default MTU interface is typically 1500. User can lower the value to cope with tunneling, or increase the value up to 9K to leverage jumbo support on the NIC.

To configure the MTU of the existing interface eth0 in vrf main to 2000, do:

vsr running config# / vrf main interface physical eth1 mtu 2000

To display an interface mtu:

vsr> show state / vrf main interface physical eth1 mtu
mtu 2000

The same configuration can be made using this NETCONF XML configuration:

vsr> show config xml absolute nodefault vrf main interface physical eth1 mtu
<config xmlns="urn:6wind:vrouter">
  <vrf>
    <name>main</name>
    <interface xmlns="urn:6wind:vrouter/interface">
      <physical>
        <name>eth1</name>
        <mtu>2000</mtu>
      </physical>
    </interface>
  </vrf>
</config>