NX-OS: OSPF Redistribution with VRF-lite on Nexus 5500

Creating VRF context

vrf context TEST_VRF
 ip route <ip address/range> <next hop>

Configure vrf specific static routes under the same vrf context

Assign interface to VRF

interface Ethernet1/1

 no switchport

 vrf member TEST_VRF

 ip address 1.1.1.1/24

Remember to apply IP address to interface AFTER the vrf config

Create OSPF Process

router ospf 201

 vrf TEST_VRF

interface Ethernet1/1

 ip router ospf 201 area 0

Redistribute Directly Connected Subnets

route-map CONNECTED_INTO_OSPF permit 10

  set metric 20 

  set metric-type type-1

router ospf 201

 vrf TEST_VRF

  redistribute direct route-map CONNECTED_INTO_OSPF 

Metrics and OSPF advertisement type is configured in the route-map

Redistribute Selective Static Routes

ip prefix-list STATIC_INTO_OSPF permit 10.10.10.0/20

route-map STATIC_INTO_OSPF permit 10

 !match  ip address prefix-list STATIC_INTO_OSPF

  set metric 20 

  set metric-type type-1

router ospf 201

 vrf TEST_VRF

  redistribute static route-map STATIC_INTO_OSPF 

Only 10.10.10.0/24 is redistributed into OSPF.

Verifications

show ip ospf vrf TEST_VRF

show ip ospf database detail vrf TEST_VRF #verify metric and type for advertisements

show ip ospf interface vrf TEST_VRF