EMAIL SUPPORT

dclessons@dclessons.com

LOCATION

NZ

Configure Unicast Overlay Routing

Configure Unicast Overlay Routing

Posted on Jan 27, 2020 (0)

Configure Unicast Overlay Routing

In Cisco SD-WAN Viptela, it support BGP and OSPF routing protocols. It establish routing on vEdge, on one VPN or multiple VPN, you must configured the interface under that VPN and a routing protocol under that VPN. On vSmart we don’t configure any routing protocols as this never participate in local site network.
OSPF configuration on vEdge:

Configure a VPN for the OSPF network:

vEdge(config)# vpn vpn-id

VPN ID except VPN 0 and VPN512

Configure OSPF area 0 and the interfaces that participate in that area:

vEdge(config-vpn)# router ospf
vEdge(config-ospf)# area 0
vEdge(config-area-0)# interface interface-name
vEdge(config-interface)# ip-address address
vEdge(config-interface)# no shutdown
vEdge (ospf-if)# exit

Redistribute OMP routes into OSPF:

vEdge(config-ospf)# redistribute omp

By default, OMP routes are not redistributed into OSPF. Also if required configure OMP to advertise any BGP and OSPF external routes that the vEdge router has learned to the vSmart controller:

vEdge(config)# omp
vEdge(config-omp)# advertise bgp
vEdge(config-omp)# advertise ospf external

Example: configuration sets up VPN 20 with two interfaces, ge4/0 and ge5/0. It enables OSPF routing on those interfaces in area 0, and it redistributes the OMP routes from the vSmart controller into OSPF.

vpn 20
router
ospf
redistribute omp
area 0
interface ge4/0
exit
interface g53/0
exit
exit
!
!
interface ge4/0
ip address 10.0.5.12/24
no shutdown
!
interface ge5/0
ip address 10.0.2.12/24
no shutdown
!

BGP configuration on vEdge:

Configure a VPN:

vEdge(config)# vpn vpn-id

vpn-id can be any service-side VPN,

Configure BGP to run in the VPN | Configure the local AS number:

vEdge(config-vpn)# router bgp local-as-number (1 through 65535)

Configure the BGP peer, specifying its address and AS number (the remote AS number), and enable the
connection to the peer:

vEdge(config-bgp)# neighbor address remote-as remote-as-number
vEdge(config-bgp)# no shutdown

Configure a system IP address for the vEdge router:

vEdge(config)# system system-ip address

Example :

vEdge# show running-config system
system
system-ip 10.10.10.10
!
vEdge# show running-config vpn 1
vpn 10
router
bgp 10
neighbor 11.1.2.3
no shutdown
remote-as 11
!
!
!
ip route 0.0.0.0/0 10.10.10.11
!

Redistribute BGP Routes and AS Path Information

By default any routes learned from any other routing protocol are not redistributed to BGP. To redistribute OMP routes to BGP so that these prefixes are advertise to all BGP router present in service side network redistribution configuration is required except on VPN 0 and VPN 512


Comment

    You are will be the first.

LEAVE A COMMENT

Please login here to comment.