9
• Configure the interconnection interfaces between Border 1 and DCI switch to enable Layer 3
interconnect between the local and remote VTEPs.
[border1] interface Ten-GigabitEthernet1/0/17
[border1-Ten-GigabitEthernet1/0/17] port link-mode route
[border1-Ten-GigabitEthernet1/0/17] ip address 12.1.1.1 255.255.255.252
[border1-Ten-GigabitEthernet1/0/17] ospf network-type p2p
[border1-Ten-GigabitEthernet1/0/17] ospf 1 area 0.0.0.0
[border1-Ten-GigabitEthernet1/0/17] quit
• Configure BGP:
The command descriptions are as follows:
peer ebgp as-number 1000: 1000, AS number of remote DC.
peer 10.1.2.8 group ebgp: 10.1.2.8 is the VTEP IP address of Border 1 (DC 2) (real IP
address of the device as an DRNI member device).
peer 10.1.2.9 group ebgp: 10.1.2.9 is the VTEP IP address of Border 2 (DC 2) (real IP
address of the device as an DRNI member device).
peer ebgp route-policy SDN_POLICY_DCI_L3CONNECT export: The
SDN_POLICY_DCI_L3CONNECT name is fixed and when the Layer 3 DC interconnection
is created, the controller issues the route policy. Verify the configuration by executing the
display current-configuration configuration route-policy command on
the device.
peer { group-name } re-originated [ imet | mac-ip ] replace-rt: Regenerate
the EVPN route.
[border1] bgp 100
[border1-bgp-default] group ebgp external
[border1-bgp-default] peer ebgp as-number 1000
[border1-bgp-default] peer ebgp connect-interface LoopBack0
[border1-bgp-default] peer ebgpebgp-max-hop 64
[border1-bgp-default] peer 10.1.2.8 group ebgp
[border1-bgp-default] peer 10.1.2.9 group ebgp
[border1-bgp-default] address-family l2vpn evpn
[border1-bgp-default-evpn] nexthopevpn-drni group-address
[border1-bgp-default-evpn] peer ebgp enable
[border1-bgp-default-evpn] peer ebgp route-policy SDN_POLICY_DCI_L3CONNECT export
[border1-bgp-default-evpn] peer ebgp router-mac-local dci
[border1-bgp-default-evpn] peer ebgp re-originated replace-rt
[border1-bgp-default-evpn] peer ebgp re-originated mac-IP replace-r
[border1-bgp-default-evpn] peer ebgp re-originated imet replace-rt
[border1-bgp-default-evpn] peer evpn re-originated replace-rt
[border1-bgp-default-evpn] peer evpn re-originated mac-IP replace-rt
[border1-bgp-default-evpn] peer evpn re-originated imet replace-rt
[border1-bgp-default-evpn] quit
[border1-bgp-default] quit
• Configure a route policy:
Execute the route-policy SDN_PREDEF_deny_default command on the ED device to filter
the default routes to prevent loops. This route policy will not be restored by. The controller
uses this route policy when the controller creates a VPN on a border device at the creation of
overlay Layer 3 DC interconnect (with firewall traversal) with route reduction disabled.
[border1] ip prefix-list SDN_PREDEF_default index 10 permit 0.0.0.0 0
[border1] ipv6 prefix-list SDN_PREDEF_default index 10 permit :: 0