Virtual-link OSPF On Junos

Posted: September 28, 2011 in Juniper, Networking

Seperti halnya Virtual-link OSPF on Cisco, di Junos pun hampir sama. Tujuan Virtual-link ini adalah untuk memanipulasi router yang berada diluar area0, atau terhubung dengan area lain. Tapi, seakan-akan router tersebut terhubung dengan Area0.
Network Diagramnya sebagai berikut..simulasi melalui Olive. Sehingga, menggunakan logical-router..
Design By Wiwid

Untuk konfigurasinya silahkan download
Config_R1
Config_R2
Config_R3
Config_R4

Jika virtual-link antara R1 & R3 tidak ada (deactivate), maka neighbor router R1, hanya R2 & R3
wiwid@my_junos# run show ospf neighbor logical-router R1
Address Interface State ID Pri Dead
10.50.50.2 fxp1.1 Full 10.1.1.20 128 37
10.11.10.2 fxp1.2 Full 10.1.1.30 128 37

Jika virtual-link diaktifkan, maka neighbor di R1 akan bertambah
wiwid@my_junos# run show ospf neighbor logical-router R1
Address Interface State ID Pri Dead
10.50.50.2 fxp1.1 Full 10.1.1.20 128 36
10.11.10.2 vl-10.1.1.30 Full 10.1.1.30 0 36
10.11.10.2 fxp1.2 Full 10.1.1.30 128 36

vl=virtual-link

Ping dari R4 – R2, hasilnya sbb :
wiwid@my_junos# run ping 10.1.1.20 logical-router R4
PING 10.1.1.20 (10.1.1.20): 56 data bytes
64 bytes from 10.1.1.20: icmp_seq=0 ttl=62 time=3.497 ms
64 bytes from 10.1.1.20: icmp_seq=1 ttl=62 time=2.372 ms
64 bytes from 10.1.1.20: icmp_seq=2 ttl=62 time=1.508 ms

^C

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