we have l7 in SW1 and i want SW2 access to l7 in SW1 how to configure R3 to this scanario
SW2 just access to l7 SW1
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Build the logical topology per the diagram
Configure OSPF area 0 on the interfaces between R1, R2, R3, and R4
Configure MPLS on the interfaces between R1, R2, R3, and R4
Create the Loopback 150.1.3.3/32 on R3 and advertise it into OSPF
Create the Loopback 150.1.4.4/32 on R4 and advertise it into OSPF
Configure RIPv2 on the Ethernet interfaces of R5, SW1, and SW2
Create the Loopback 10.1.7.7/24 on SW1 and advertise it into RIPv2
Create the Loopback 10.1.8.8/24 on SW2 and advertise it into RIPv2
R3 and R4 should peer via iBGP in AS 1 using their Loopback interfaces
SW1 should be in VRF “SW1”
Use the route distinguisher and route target 1:7 for this VRF
SW2 should be in VRF “SW2”
Use the route distinguisher and route target 1:8 for this VRF
R5 should be in VRF “R5”
Use the route distinguisher 1:5 for this VRF
VLAN 5 should be exported into VRF “R5” with the route target 1:7
VLAN 55 should be exported into VRF “R5” with the route target 1:8
Run RIPv2 as the PE-CE protocol on R3 and R4
Redistribute where necessary
Sshould have reachability to VLAN 5 but not VLAN 55
SW2 should have reachability to VLAN 55 but not VLAN 5