Users Guide

Table Of Contents
To enable Routing between virtual networks over a VxLAN domain, each virtual network needs to be configured with an IRB
interface. This IRB interface consists of the IP address and the anycast addresses. These addresses correspond to the virtual-
network and the VRF on which the virtual network is a part. Both IPv4 and IPv6 addresses are supported for virtual-network
interfaces.
In addition to the IRB interface configurations, you must configure the same anycast MAC address globally in all VTEPs using
the ip virtual-router mac-address command.
VTEP-1-VLT-PRI# show running-configuration | grep mac
!
ip virtual-router mac-address 00:11:22:33:44:55
!
VTEP-1-VLT-PRI# show running-configuration interface virtual-network 200
!
interface virtual-network200
no shutdown
ip vrf forwarding green
ip address 20.1.1.1/24
ip virtual-router address 20.1.1.32
ipv6 address 20::1/64
ipv6 virtual-router address 20::32
EVPN configurations
You must map each virtual network to an EVPN Instance (EVI). Both auto-evi and manual-evi are supported.
Auto EVI configuration automatically creates an EVI and maps it to the VNI and assigns the RD and RT automatically to each of
the EVI.
In case of manual configuration, you must create an EVI and map the VNI and add RD and RT for each EVI manually.
VTEP-1-VLT-PRI# show running-configuration evpn
!
evpn
auto-evi
!
VTEP-1-VLT-PRI# show evpn evi 200
EVI : 200, State : up
Bridge-Domain : Virtual-Network 200, VNI 200
Route-Distinguisher : 1:31.1.1.1:200(auto)
Route-Targets : 0:65000:268435656(auto) both
Inclusive Multicast : 32.1.1.1
IRB : Enabled(green)
Symmetric IRB specific configurations
To enable symmetric IRB over a VRF, you must configure a router MAC address in each VTEP and the VRF has to be configured
with its own VRF-VNI, RD and RT.
VTEP-1-VLT-PRI# show running-configuration evpn
!
evpn
auto-evi
router-mac 00:aa:aa:aa:aa:aa
!
vrf green
vni 4001
route-target auto
!
VTEP-1-VLT-PRI# show evpn vrf l3-vni
VRF : green, State : up
L3-VNI : 4001
Route-Distinguisher : 1:31.1.1.1:4001(auto)
Route-Targets : 0:65000:268439457(auto) both
Remote VTEP :
32.1.1.1
VTEP-1-VLT-PRI# show evpn router-mac
Local Router MAC : 00:aa:aa:aa:aa:aa
1570
Quality of service