Deployment Guide

Configure routing on the virtual networks
OS10(config)# interface virtual-network10000
OS10(conf-if-vn-10000)# ip vrf forwarding tenant1
OS10(conf-if-vn-10000)# ip address 10.1.0.231/16
OS10(conf-if-vn-10000)# ip virtual-router address 10.1.0.100
OS10(conf-if-vn-10000)# no shutdown
OS10(conf-if-vn-10000)# exit
OS10(config)# interface virtual-network20000
OS10(conf-if-vn-20000)# ip vrf forwarding tenant1
OS10(conf-if-vn-20000)# ip address 10.2.0.231/16
OS10(conf-if-vn-20000)# ip virtual-router address 10.2.0.100
OS10(conf-if-vn-20000)# no shutdown
OS10(conf-if-vn-20000)# exit
VTEP 2 Leaf Switch
1. Configure IP switching in overlay network
Create a tenant VRF
OS10(config)# ip vrf tenant1
OS10(conf-vrf)# exit
Configure an anycast gateway MAC address
OS10(config)# ip virtual-router mac-address 00:01:01:01:01:01
Configure routing on the virtual networks
OS10(config)# interface virtual-network10000
OS10(conf-if-vn-10000)# ip vrf forwarding tenant1
OS10(conf-if-vn-10000)# ip address 10.1.0.232/16
OS10(conf-if-vn-10000)# ip virtual-router address 10.1.0.100
OS10(conf-if-vn-10000)# no shutdown
OS10(conf-if-vn-10000)# exit
OS10(config)# interface virtual-network20000
OS10(conf-if-vn-20000)# ip vrf forwarding tenant1
OS10(conf-if-vn-20000)# ip address 10.2.0.232/16
OS10(conf-if-vn-20000)# ip virtual-router address 10.2.0.100
OS10(conf-if-vn-20000)# no shutdown
OS10(conf-if-vn-20000)# exit
Example: Border Leaf Gateway
Introduction
In this example, traffic from the host that is destined to the internet reaches the border leaf gateway through the Layer3 VTEPs and an IP
underlay fabric. All VTEPS are configured with internal VNs.
Limitations on platforms
Routing between virtual networks and vlans are supported only in S4100-ON series, S4200-ON series, S5200-ON series, S4048T, and
S6010-ON due to NPU capability.
In other platforms, routing can happen only between virtual networks and the egress virtual network can be connected to a vlan in an
external router which connects to the external network.
Example Description
In the below example, VLT domain 1 is a VLT VTEP and VLT domain 2 is the Border Leaf VLT VTEP pair. The virtual networks present in
the DC are configured in all the VTEPs with its own IP addresses and anycast IP addresses.
A separate virtual network is configured in all VTEPs which has the Anycast IP address configured only in the Border Leaf VTEP. In case of
Asymmetric IRB, a static route is configured in all VTEPs except the Border leaf VTEP such that any traffic destined to external world is
pointed to the anycast ip address of the special virtual network present in the border leaf VTEP. Similarly, another Static route is
configured in the Border Leaf VTEP where any traffic to external world is pointed to the egress VLAN towards the WAN router or the
internet.
BGP EVPN for VXLAN
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