Dell PowerSwitch S5212F-ON OS10 Enterprise Edition User Guide Release 10.4.3.0 - Page 686

Table 21. IP address on the virtual-network interface on each VTEP Virtual network VTEP Virtual-network IP address VNID 11 VTEP 1 10.10.1.201 VTEP 2 10.10.1.202 VTEP 3 10.10.1.203 VNID 12 VTEP 1 VTEP 2 VTEP 3 10.20.1.201 10.20.1.202 10.20.1.203 VNID 13 VTEP 1 VTEP 2 VTEP 3 10.30.1.201 10.30.1.202 10.30.1.203 Anycast gateway IP address 10.10.1.254 10.10.1.254 10.10.1.254 10.20.1.254 10.20.1.254 10.20.1.254 10.30.1.254 10.30.1.254 10.30.1.254 Advertise VXLAN source IP address 1 Advertise the IP address of the local source tunnel interface to all VTEPs in the underlay IP network using the existing routing infrastructure. This example uses OSPF to advertise the VXLAN source IP address on Ethernet1/1/3, which is the underlay networkfacing interface: OS10(config)# router ospf 100 OS10(config-ospf)# router-id 110.111.170.195 OS10(config-ospf)# exit OS10(config)# interface ethernet1/1/3 OS10(config-if-eth1/1/3)# ip ospf 100 area 0.0.0.0 OS10(config-if-eth1/1/3)# exit OS10(config)# interface loopback 1 OS10(config-if-lo-1)# ip ospf 100 area 0.0.0.0 Each VTEP switch in the underlay IP network learns the IP address of the VXLAN source interface. If a remote VTEP switch is not reachable, its status displays as DOWN in the show nve remote-vtep output. 2 Configure the MTU value on L3 underlay network-facing interfaces in Interface mode to be at least 50 bytes higher than the MTU on the server-facing links to allow for VXLAN encapsulation. The range is from 1312 to 9216. mtu value 3 Return to CONFIGURATION mode. exit Configure VLT (Optional) To use VXLAN in a VLT domain, configure the VLT domain - including the VLT Interconnect (VLTi) interfaces, backup heartbeat, and VLT MAC address - as described in the OS10 Enterprise Edition User Guide in the Virtual link trunking section. Required VLT VXLAN configuration: • The IP address of the VTEP source Loopback interface must be same on the VLT peers. • If you use a port-scoped VLAN to assign tagged access interfaces to a virtual network, to identify traffic belonging to each virtual network, you must configure a unique VLAN ID for the VLT Interconnect (VLTi) link. • Configure a VLAN to transmit VXLAN traffic over the VLTi link in VIRTUAL-NETWORK mode. All traffic sent and received from a virtual network on the VLTi carries the VLTi VLAN ID tag. 686 VXLAN