OSPF BGP MPLS

Distance Vector and link state

AD 110

Protocol Number 89

HOW TO Configure OSPF

Step 1 OSPF

interface GigabitEthernet1/0.964 description To sandwip-cr1-et1 encapsulation dot1Q 964 ip address 172.21.28.177 255.255.255.252 ip ospf network point-to-point ip ospf cost 20 mpls ip router ospf 24342 network 172.21.28.176 0.0.0.3 area 0

OSPF States

OSPF LSA

OSPF Network type

Hello and dead interval

OSPF and Spanning Tree

Loop free, shortest path in respect of cost. Links contains a root port remains active.

Loop free shortest path in respect of cost. Links contains a primary port remains active.

Dijkstra’s SPF Algorithm

OSPF equal cost load balance

OSPF Area

Virtual Link

Area 0 Area 1 ABR Command 1.1.1.1 Area 1 Area 2 ABR Command 2.2.2.2Router ospf 24342 Area 1 virtual link 2.2.2.2

Router ospf 24342 Area 1 virtual link 1.1.1.1

OSPF Working Topology

AS 25382

OSPF Stub Area and OSPF LSA Type

Redistribution

Redistribution OSPF Cost

Type 1 External

BGP

IGP Vs EGP

BGP 2 Types

Telnet and BGP

eBGP WORKING TOPOLOGY

AS 1 - 64511

iBGP working topology ??????????

Route Reflector

BGP Configuration

In router R1 , R2, R3

In router R4

R1, R2, R3 ibgp configuration R4 ibgp configuration config t router bgp 24342 neighbor 4.4.4.4 remote-as 24342 neighbor 4.4.4.4 update-source loopback 0

config trouter bgp 24342 neighbor X.X.X.X remote-as 24342 neighbor X.X.X.X update-source loopback 0 neighbor X.X.X.X next-hop-self neighbor X.X.X.X route-reflector-client

EBGP

Network Announce

MPLS

Bracnet Network Structure

MPLS PROCEDURE IN Swandip POP

Loopback 202.168.225.80

Step 1 OSPF

interface GigabitEthernet1/0.964 description To sandwip-cr1-et1 (Citycell_E1) encapsulation dot1Q 964 ip address 172.21.28.177 255.255.255.252 ip ospf network point-to-point ip ospf cost 20 mpls ip router ospf 24342 network 172.21.28.176 0.0.0.3 area 0

Step 2 BGP

Ciscorouter bgp 24342 neighbor ACM-RRC peer-group neighbor ACM-RRC remote-as 24342 neighbor ACM-RRC description iBGP session with MicroPOPs neighbor ACM-RRC update-source Loopback0

router bgp 24342 neighbor 202.168.225.80 peer-group ACM-RRC neighbor 202.168.225.80 description Swandip address-family ipv4 neighbor 202.168.225.80 activate exit address-family vpnv4 neighbor 202.168.225.80 activate

MT

Step 3 Stopping Redistribution

Check Loopback

Ping Check

Enabling LDP

Adding MPLS clients

Config t

vrf definition Pingview+_Monitoring

rd 24342:12

address-family ipv4

route-target export 24342:12

route-target import 24342:12

exit-address-family

!

interface Loopback10

description Pingview+_Monitoring

vrf forwarding Pingview+_Monitoring

ip address 192.168.1.8 255.255.255.255

router bgp 24342

address-family ipv4 vrf Pingview+_Monitoring

redistribute connected

exit-address-family

!

!