AToM.
AToM digunakan untuk membuat koneksi transport Layer 2 melalui network MPLS.
Transport lain yang dimaksud bisa berupa Frame Relay, Ethernet, PPP, ATM dan HDLC.
Router Cisco yang dapat digunakan untuk feature ini minimal adalah Cisco 3700 series dengan IOS tertentu juga.
Detail minimum IOS bisa kita lihat di http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/fsatom.html
Untuk lab kali ini kita akan membahas bagaimana konfigurasi MPLS VPN - AToM untuk l2 transport Frame Relay.
Lab 9 - MPLS VPN - AToM - Frame Relay
Topologi yang digunakan adalah sbb :
Router R1 dan R2 akan menjadi router PE pada networks MPLS, sedangkan router R5 dan R6 akan menjadi router CE untuk dikoneksikan melalui transport Frame Relay.
Konfigurasi R1 :
mpls ldp router-id Loopback0 force
!
frame-relay switching
!
interface Loopback0
ip address 1.1.1.1 255.255.255.255
ip address 1.1.1.1 255.255.255.255
!
interface FastEthernet0/1
ip address 12.12.12.1 255.255.255.0
mpls ip
ip address 12.12.12.1 255.255.255.0
mpls ip
!
interface Serial0/0
no ip address
encapsulation frame-relay
frame-relay intf-type dce
no ip address
encapsulation frame-relay
frame-relay intf-type dce
!
router ospf 1
log-adjacency-changes
network 1.1.1.1 0.0.0.0 area 0
network 12.12.12.1 0.0.0.0 area 0
log-adjacency-changes
network 1.1.1.1 0.0.0.0 area 0
network 12.12.12.1 0.0.0.0 area 0
!
connect FR Serial0/0 201 l2transport
xconnect 2.2.2.2 10 encapsulation mpls
xconnect 2.2.2.2 10 encapsulation mpls
Konfigurasi R2 :
mpls ldp router-id Loopback0 force
!
frame-relay switching
!
interface Loopback0
ip address 2.2.2.2 255.255.255.255
ip address 2.2.2.2 255.255.255.255
!
interface FastEthernet0/1
ip address 12.12.12.2 255.255.255.0
mpls ip
ip address 12.12.12.2 255.255.255.0
mpls ip
!
interface Serial0/0
no ip address
encapsulation frame-relay
frame-relay intf-type dce
no ip address
encapsulation frame-relay
frame-relay intf-type dce
!
router ospf 1
log-adjacency-changes
network 2.2.2.2 0.0.0.0 area 0
network 12.12.12.2 0.0.0.0 area 0
log-adjacency-changes
network 2.2.2.2 0.0.0.0 area 0
network 12.12.12.2 0.0.0.0 area 0
!
connect FR Serial0/0 102 l2transport
xconnect 1.1.1.1 10 encapsulation mpls
xconnect 1.1.1.1 10 encapsulation mpls
Konfigurasi R5 :
interface Serial0/0
no ip address
encapsulation frame-relay
!
interface Serial0/0.1 point-to-point
ip address 56.56.56.5 255.255.255.0
frame-relay interface-dlci 102
no ip address
encapsulation frame-relay
!
interface Serial0/0.1 point-to-point
ip address 56.56.56.5 255.255.255.0
frame-relay interface-dlci 102
Konfigurasi R6 :
interface Serial0/0
no ip address
encapsulation frame-relay
!
interface Serial0/0.1 point-to-point
ip address 56.56.56.6 255.255.255.0
frame-relay interface-dlci 201
no ip address
encapsulation frame-relay
!
interface Serial0/0.1 point-to-point
ip address 56.56.56.6 255.255.255.0
frame-relay interface-dlci 201
Verifikasi AToM di router R1 dan R2 :
R1#sh mpls l2transport vc
Local intf Local circuit Dest address VC ID Status
------------- --------------------- --------------- ---------- ----------
Se0/0 FR DLCI 102 2.2.2.2 10 UP
Local intf Local circuit Dest address VC ID Status
------------- --------------------- --------------- ---------- ----------
Se0/0 FR DLCI 102 2.2.2.2 10 UP
R2#sh mpls l2transport vc
Local intf Local circuit Dest address VC ID Status
------------- --------------------- --------------- ---------- ----------
Se0/0 FR DLCI 201 1.1.1.1 10 UP
Local intf Local circuit Dest address VC ID Status
------------- --------------------- --------------- ---------- ----------
Se0/0 FR DLCI 201 1.1.1.1 10 UP
AToM untuk frame relay DLCI 102 dan 201 sudah terbangun dengan baik.
Verifikasi Frame Relay Map dan hasil ping di router R5 dan R6 :
R5#sh frame map
Serial0/0.1 (up): point-to-point dlci, dlci 102(0x66,0x1860), broadcast
status defined, active
Serial0/0.1 (up): point-to-point dlci, dlci 102(0x66,0x1860), broadcast
status defined, active
R5#ping 56.56.56.6
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 56.56.56.6, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/32/56 ms
Sending 5, 100-byte ICMP Echos to 56.56.56.6, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/32/56 ms
R6#sh frame map
Serial0/0.1 (up): point-to-point dlci, dlci 201(0xC9,0x3090), broadcast
status defined, active
Serial0/0.1 (up): point-to-point dlci, dlci 201(0xC9,0x3090), broadcast
status defined, active
R6#ping 56.56.56.5
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 56.56.56.5, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 20/41/76 ms
Dari hasil frame relay map menunjukkan bahwa frame relay di router R5 dan R6 sudah active dan hasil ping antara R5 dan R6 juga sudah berhasil.
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