Cisco Ex SERIES Manual de usuario descargar pdf (Pagina 26)

Juniper Networks/Cisco Systems Switch Interoperability Cookbook

! ! !

Nexus7010(config-rtr)# network 192.18.69.1/32 area 0.0.0.0

Nexus7010(config-rtr)# network 192.18.70.0/24 area 0.0.0.0

Nexus7010(config-rtr)# mpls ldp autoconfig area 0.0.0.0

Nexus7010(config-rtr)# mpls ldp sync

Nexus7010(config-rtr)# exit

7. Enable BGP and configure MP-BGP to exchange routes with other PE devices. In this

example, the service provider network uses autonomous system 100 (AS 100):

Nexus7010(config)# router /jointfilesconvert/492162/bgp 100

Nexus7010(config-rtr)# router-id 192.18.69.1

Nexus7010(config-rtr)# neighbor 192.18.40.1 remote-as 100

Nexus7010(config-rtr)# address-family vpnv4 unicast

Nexus7010(config-rtr)# send-community extended

Nexus7010(config-rtr)# exit

8. Configure a VRF instance. In this example, the VRF’s name is “VPN1”. The “rd”

command is a route distinguisher that uniquely identifies this VRF’s network. RDs

prevent traffic misrouting when multiple customers use the same network space (for

example, when two customers both use net-10 addresses):

Nexus7010(config)# vrf context VPN1

Nexus7010(config-vrf)# rd 100:2

Nexus7010(config-vrf)# address-family ipv4 unicast

Nexus7010(config-vrf)# route-target import 100:2

Nexus7010(config-vrf)# route-target export 100:2

Nexus7010(config-vrf)# exit

9. Configure the VRF instance defined in the previous step on interface e3/3, which

connects with the CE device:

Nexus7010(config)# int e3/3

Nexus7010(config-int)# vrf member VPN1

Nexus7010(config-int)# exit

10. Configure OSPF for routing between CE and PE devices. This step binds the VRF

instance to the routing protocols or static routes used at customer sites. This example

places the learned routes into a route map called rmap1:

Nexus7010(config)# route-map rmap1 permit 10

Nexus7010(config)# router ospf 1

Nexus7010(config-rtr)# vrf VPN1

Nexus7010(config-rtr)# network 192.18.68.0/24 area 0.0.0.0

Nexus7010(config-rtr)# redistribute /jointfilesconvert/492162/bgp 100 route-map rmap1

Nexus7010(config-rtr)# exit

11. Configure the PE device to redistribute routes learned from CE devices into MP-

BGP. This example uses the routes learned from OSPF process 1, but other routing

protocols or static routing could be used with other VRF instances. This example

redistributes routes from the route map called rmap1:

Nexus7010(config)# router /jointfilesconvert/492162/bgp 100

Nexus7010(config-router)# vrf VPN1

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