MPLS (Multi Protocol Label Switching) merupakan suatu cara untuk pengiriman paket data dengan kecepatan tinggi. Protocol ini bekerja dengan di antara layer 2 dengan layer 3 menggunakan label untuk switching. Sehingga bersifat skalabilitas dan cepat.
Berikut adalah gambar topologinya :

Keterangan gambar :Router P (Provider) terhubung dengan router-router PE yang lain.
Router PE (Provider Edge) fungsinya menghubungkan Router CE ke Router P
Router CE (Customer Edge) , router di sisi pelanggan
Setting MPLS Backbone
hostname PE1
interface Loopback0
ip address 10.10.10.1 255.255.255.255
!
interface Serial1/0
ip address 192.168.10.1 255.255.255.252
mpls ip (yang terkoneksi ke router P-mengaktifkan mpls)
serial restart-delay 0
!
router ospf 1
log-adjacency-changes
network 10.10.10.1 0.0.0.0 area 0
network 192.168.10.1 0.0.0.0 area 0
!
router bgp 65000
no synchronization
bgp log-neighbor-changes
neighbor 10.10.10.2 remote-as 65000
neighbor 10.10.10.2 update-source Loopback0
no auto-summary
=======================
Pada router P
Hostname P
interface Loopback0
ip address 10.10.10.10 255.255.255.255
!
interface Serial1/0
ip address 192.168.10.2 255.255.255.252
mpls ip (setingan pada router P)
no fair-queue
serial restart-delay 0
!
interface Serial1/1
ip address 192.168.20.1 255.255.255.252
mpls ip (setingan pada router P)
serial restart-delay 0
!
router ospf 1
log-adjacency-changes
network 10.10.10.10 0.0.0.0 area 0
network 192.168.10.2 0.0.0.0 area 0
network 192.168.20.1 0.0.0.0 area 0
!
=========================
hostname PE2
interface Loopback0
ip address 10.10.10.2 255.255.255.255
!
interface Serial1/1
ip address 192.168.20.2 255.255.255.252
mpls ip
serial restart-delay 0
!
router ospf 1
log-adjacency-changes
network 10.10.10.2 0.0.0.0 area 0
network 192.168.20.2 0.0.0.0 area 0
!
router bgp 65000 (mengaktifkan BGP)
no synchronization
bgp log-neighbor-changes
neighbor 10.10.10.1 remote-as 65000
neighbor 10.10.10.1 update-source Loopback0
no auto-summary
!
Cek BGP Peering antara PE1 dengan PE2
PE2#sh ip bgp sum
BGP router identifier 10.10.10.2, local AS number 65000
BGP table version is 1, main routing table version 1
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.10.10.1 4 65000 14 14 1 0 0 00:11:06 0
PE2#
Verifikasi MPLS telah terbentuk
PE2#show mpls forwarding-table
Local Outgoing Prefix Bytes tag Outgoing Next Hop
tag tag or VC or Tunnel Id switched interface
16 Pop tag 192.168.10.0/30 0 Se1/1 point2point
17 Pop tag 10.10.10.10/32 0 Se1/1 point2point
18 17 10.10.10.1/32 0 Se1/1 point2point
PE2#
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