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Sabtu, 03 Juni 2017

Lab 143 - IOS XR OSPF Routing

Pada lab sebelumnya kita sudah belajar tentang konfigurasi static routing di IOS XR.. Selanjutnya pada lab ini kita akan belajar konfigurasi routing OSPF pada IOS XR. Berikut topologi yang akan kita gunakan pada lab ini
Pada topologi diatas kita juga harus konfigurasi virtual link ya.. karena Area 2 tidak terhubung langsung dengan Area 0..

Oke pertama kita konfigurasikan ip address pada ketiga IOS XR sesuai topologi diatas
RP/0/0/CPU0:IOS-XR1(config)#int g0/0/0/0
RP/0/0/CPU0:IOS-XR1(config-if)#no sh
RP/0/0/CPU0:IOS-XR1(config-if)#ipv4 add 12.12.12.1/24

RP/0/0/CPU0:IOS-XR1(config-if)#int l0
RP/0/0/CPU0:IOS-XR1(config-if)#ipv4 add 1.1.1.1/32

RP/0/0/CPU0:IOS-XR1(config-if)#int l1
RP/0/0/CPU0:IOS-XR1(config-if)#ipv4 add 11.11.11.11/32

RP/0/0/CPU0:IOS-XR1(config-if)#commit
Sat Jun  3 15:06:51.991 UTC

RP/0/0/CPU0:IOS-XR2(config)#int g0/0/0/0
RP/0/0/CPU0:IOS-XR2(config-if)#no sh
RP/0/0/CPU0:IOS-XR2(config-if)#ipv4 add 12.12.12.2/24    

RP/0/0/CPU0:IOS-XR2(config-if)#int l0
RP/0/0/CPU0:IOS-XR2(config-if)#ipv4 add 2.2.2.2/32

RP/0/0/CPU0:IOS-XR2(config-if)#int l1
RP/0/0/CPU0:IOS-XR2(config-if)#ipv4 add 22.22.22.22/32

RP/0/0/CPU0:IOS-XR2(config-if)#int g0/0/0/1
RP/0/0/CPU0:IOS-XR2(config-if)#no sh
RP/0/0/CPU0:IOS-XR2(config-if)#ipv4 add 23.23.23.2/24

RP/0/0/CPU0:IOS-XR2(config-if)#commit

RP/0/0/CPU0:IOS-XR3(config)#int g0/0/0/0
RP/0/0/CPU0:IOS-XR3(config-if)#no sh
RP/0/0/CPU0:IOS-XR3(config-if)#ipv4 add 23.23.23.3/24

RP/0/0/CPU0:IOS-XR3(config-if)#int l0
RP/0/0/CPU0:IOS-XR3(config-if)#ipv4 add 3.3.3.3/32

RP/0/0/CPU0:IOS-XR3(config-if)#int l1
RP/0/0/CPU0:IOS-XR3(config-if)#ipv4 add 33.33.33.33/32

RP/0/0/CPU0:IOS-XR3(config-if)#commit
Oke.. konfigurasi ip address sudah selesai ya.. untuk pengujian, kita coba lakukan uji ping ke directly connected network masing2 router.. Berikut pengujian ping dari IOS-XR1 ke IOS-XR2
RP/0/0/CPU0:IOS-XR1(config-if)#do ping ipv4 12.12.12.2
Sat Jun  3 15:10:34.386 UTC
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 12.12.12.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/14/59 ms
Oke dari IOS-XR1 ke IOS-XR2 berhasil.. sekarang kita coba dari IOS-XR2 ke IOS-XR3
RP/0/0/CPU0:IOS-XR2(config-if)#do ping ipv4 23.23.23.3
Sat Jun  3 15:11:08.853 UTC
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 23.23.23.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/10/39 ms
Oke.. sudah berhasil juga ya..

Lanjut kita konfigurasi OSPF pada ketiga router tersebut.. perhatikan konfigurasinya harus sesuai topologi ya.. pada topologi kita diminta untuk mengkonfigurasi OSPF dengan 3 area..

Oke langsung saja, berikut konfigurasi OSPF pada IOS-XR1
RP/0/0/CPU0:IOS-XR1(config)#router ospf 1 
RP/0/0/CPU0:IOS-XR1(config-ospf)#router-id 1.1.1.1

RP/0/0/CPU0:IOS-XR1(config-ospf)#area 0
RP/0/0/CPU0:IOS-XR1(config-ospf-ar)#interface lo0
RP/0/0/CPU0:IOS-XR1(config-ospf-ar-if)#int l1
 
RP/0/0/CPU0:IOS-XR1(config-ospf-ar-if)#area 1
RP/0/0/CPU0:IOS-XR1(config-ospf-ar)#int g0/0/0/0
RP/0/0/CPU0:IOS-XR1(config-ospf-ar-if)#commit
Perhatikan bahwa kita tidak menggunakan perintah network pada IOS XR, kita menggunakan perintah interface seperti diatas, untuk pengujian kita coba lihat running-config nya ya
RP/0/0/CPU0:IOS-XR1(config-ospf)#do sh run router ospf
Sat Jun  3 15:21:25.241 UTC
router ospf 1
 router-id 1.1.1.1
 area 0
  interface Loopback0
  interface Loopback1
  !
 !
 area 1
  interface GigabitEthernet0/0/0/0
 !
!
Oke.. sekarang lanjut konfigurasi di IOS-XR2 yaa
RP/0/0/CPU0:IOS-XR2(config)#router ospf 2
RP/0/0/CPU0:IOS-XR2(config-ospf)#router-id 2.2.2.2

RP/0/0/CPU0:IOS-XR2(config-ospf)#area 1
RP/0/0/CPU0:IOS-XR2(config-ospf-ar)#int lo0
RP/0/0/CPU0:IOS-XR2(config-ospf-ar-if)#int g0/0/0/0

RP/0/0/CPU0:IOS-XR2(config-ospf-ar-if)#area 2
RP/0/0/CPU0:IOS-XR2(config-ospf-ar)#int lo1
RP/0/0/CPU0:IOS-XR2(config-ospf-ar-if)#int g0/0/0/1

RP/0/0/CPU0:IOS-XR2(config-ospf-ar-if)#commit
Sat Jun  3 15:25:53.883 UTC
RP/0/0/CPU0:IOS-XR2(config-ospf-ar-if)#do sh run router ospf
Sat Jun  3 15:27:19.337 UTC
router ospf 2
 router-id 2.2.2.2
 area 1
  interface Loopback0
  interface GigabitEthernet0/0/0/0
 !
 area 2
  interface Loopback1
  interface GigabitEthernet0/0/0/1
 !
!
Setelah konfigurasi di IOS-XR1 dan IOS-XR2, seharusnya kedua router tersebut sudah adjacency OSPF.. kita coba lihat dulu yaa
RP/0/0/CPU0:IOS-XR2(config-ospf-ar-if)#do sh ospf neig
Sat Jun  3 15:29:20.029 UTC

* Indicates MADJ interface

Neighbors for OSPF 2

Neighbor ID     Pri   State           Dead Time   Address       Interface
1.1.1.1         1     FULL/DR         00:00:34    12.12.12.1    GigabitEth0/0/0/0
    Neighbor is up for 00:03:15

Total neighbor count: 1
Perhatikan bahwa state nya sudah full... Sekarang kita lanjut konfigurasi di IOS-XR3 yaa
RP/0/0/CPU0:IOS-XR3(config)#router ospf 3
RP/0/0/CPU0:IOS-XR3(config-ospf)#router-id 3.3.3.3

RP/0/0/CPU0:IOS-XR3(config-ospf)#area 2
RP/0/0/CPU0:IOS-XR3(config-ospf-ar)#int g0/0/0/0
RP/0/0/CPU0:IOS-XR3(config-ospf-ar-if)#int l0
RP/0/0/CPU0:IOS-XR3(config-ospf-ar-if)#int l1

RP/0/0/CPU0:IOS-XR3(config-ospf-ar-if)#commit
Sat Jun  3 15:32:09.727 UTC
RP/0/0/CPU0:IOS-XR3(config-ospf-ar-if)#do sh run router ospf
Sat Jun  3 15:32:18.186 UTC
router ospf 3
 router-id 3.3.3.3
 area 2
  interface Loopback0
  interface Loopback1
  interface GigabitEthernet0/0/0/0
 !
!
Kita coba lihat neighbor tabel di IOS-XR2 ya.. seharusnya IOS-XR2 punya 2 neighbor
RP/0/0/CPU0:IOS-XR2(config-ospf-ar-if)#do sh ospf neigh
Sat Jun  3 15:34:20.278 UTC

* Indicates MADJ interface

Neighbors for OSPF 2

Neighbor ID     Pri   State           Dead Time   Address       Interface
1.1.1.1         1     FULL/DR         00:00:38    12.12.12.1    GigabitEth0/0/0/0
    Neighbor is up for 00:08:15
3.3.3.3         1     FULL/BDR        00:00:35    23.23.23.3    GigabitEth0/0/0/1
    Neighbor is up for 00:01:59

Total neighbor count: 2
Oke IOS-XR2 sudah punya 2 neighbor ya.. dan statenya sudah full semua.. terahir kita akan konfigurasikan virtual link antara IOS-XR1 dan IOS-XR2..
RP/0/0/CPU0:IOS-XR1(config)#router ospf 1
RP/0/0/CPU0:IOS-XR1(config-ospf)#area 1
RP/0/0/CPU0:IOS-XR1(config-ospf-ar)#virtual-link 2.2.2.2
RP/0/0/CPU0:IOS-XR1(config-ospf-ar-vl)#commit

RP/0/0/CPU0:IOS-XR2(config)#router ospf 2
RP/0/0/CPU0:IOS-XR2(config-ospf)#area 1
RP/0/0/CPU0:IOS-XR2(config-ospf-ar)#virtual-link 1.1.1.1
RP/0/0/CPU0:IOS-XR2(config-ospf-ar-vl)#commit
Oke, untuk pengujian, pastikan tabel routing di seluruh router sudah lengkap
RP/0/0/CPU0:IOS-XR1#show route ospf
Sat Jun  3 15:56:53.025 UTC

O    2.2.2.2/32 [110/2] via 12.12.12.2, 00:00:40, GigabitEthernet0/0/0/0
O IA 3.3.3.3/32 [110/3] via 12.12.12.2, 00:00:30, GigabitEthernet0/0/0/0
O IA 22.22.22.22/32 [110/2] via 12.12.12.2, 00:00:30, GigabitEthernet0/0/0/0
O IA 23.23.23.0/24 [110/2] via 12.12.12.2, 00:00:30, GigabitEthernet0/0/0/0
O IA 33.33.33.33/32 [110/3] via 12.12.12.2, 00:00:30, GigabitEthernet0/0/0/0
Perhatikan bahwa IOS XR1 sudah punya tabel routing OSPF lengkap, kita coba cek di IOS-XR2 dan IOS-XR3
RP/0/0/CPU0:IOS-XR2(config-ospf-ar-if)#do sh route ospf
Sat Jun  3 15:58:15.940 UTC

O    1.1.1.1/32 [110/2] via 12.12.12.1, 00:01:52, GigabitEthernet0/0/0/0
O    3.3.3.3/32 [110/2] via 23.23.23.3, 00:02:06, GigabitEthernet0/0/0/1
O    11.11.11.11/32 [110/2] via 12.12.12.1, 00:01:52, GigabitEthernet0/0/0/0
O    33.33.33.33/32 [110/2] via 23.23.23.3, 00:02:06, GigabitEthernet0/0/0/1

RP/0/0/CPU0:IOS-XR3#show route ospf
Sat Jun  3 15:58:35.758 UTC

O IA 1.1.1.1/32 [110/3] via 23.23.23.2, 00:02:12, GigabitEthernet0/0/0/0
O IA 2.2.2.2/32 [110/2] via 23.23.23.2, 00:02:22, GigabitEthernet0/0/0/0
O IA 11.11.11.11/32 [110/3] via 23.23.23.2, 00:02:12, GigabitEthernet0/0/0/0
O IA 12.12.12.0/24 [110/2] via 23.23.23.2, 00:02:22, GigabitEthernet0/0/0/0
O    22.22.22.22/32 [110/2] via 23.23.23.2, 00:02:26, GigabitEthernet0/0/0/0
Oke tabel routing di IOS-XR2 dan IOS-XR3 juga sudah lengkap.. Untuk lebih memastikan kita coba ping ya.. kita akan coba ping dari IOS-XR1 ke loopback XR2 dan XR3
RP/0/0/CPU0:IOS-XR1#ping 2.2.2.2
Sat Jun  3 16:02:21.183 UTC
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
RP/0/0/CPU0:IOS-XR1#ping 22.22.22.22
Sat Jun  3 16:02:23.943 UTC
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 22.22.22.22, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
RP/0/0/CPU0:IOS-XR1#ping 3.3.3.3
Sat Jun  3 16:02:25.882 UTC
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 3.3.3.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/6/19 ms
RP/0/0/CPU0:IOS-XR1#ping 33.33.33.33
Sat Jun  3 16:02:28.582 UTC
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 33.33.33.33, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/5/9 ms
Oke ping sudah jalan semua ya...

Alhamdulillah lab kedua kita tentang IOS XR sudah berhasil.. sampai ketemu di artikel selanjutnya yaa.. In Syaa Allah masih akan tetap tentang IOS XR

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