Jika ada 2 Interface Aktif di Switch Raisecom Seri ISCOM RAX711 maka untuk menghindari Looping maka salah satu Port harus dibuat menjadi Backup Interface:
ISCOM RAX711#show run interface nni 1-2System current configuration in port mode:
!
interface gigaethernet 0/1
switchport trunk allowed vlan 1264-1265,1399,1700,1750
switchport backup gigaethernet 0/2 vlanlist 1264-1750
description TO-ISCOM-JAKSEL-1-Port-4
!
interface gigaethernet 0/2
switchport trunk allowed vlan 1264-1265,1399,1700,1750
description TO-ISCOM-JAKPUS_Port-4
Jika Interface yang aktif maka State-nya akan Forward sedangkan Interface yang tidak aktif State-nya akan Block:
ISCOM RAX711#show interface nni 1-2
Port Admin Operate Speed Duplex Active MAU type State
--------------------------------------------------------------------------------
Gi0/1 enable up(1000M/full) auto auto 1000BASE-X Forward
Gi0/2 enable up(1000M/full) auto auto 1000BASE-X Block
Untuk Mac-address hanya didapatkan dari Interface yang aktif:
ISCOM RAX711#show mac-address-table l2-address nni 1
Aging time: 300 seconds
Mac Address Port Vlan Flags
-------------------------------------------------------
B026.8015.7AAB Gi0/1 1264 dynamic
CC4E.244B.A100 Gi0/1 1265 dynamic
609C.9F86.A800 Gi0/1 1399 dynamic
2421.24A7.2674 Gi0/1 1750 dynamic
3C08.F63C.54AA Gi0/1 1750 dynamic
ISCOM RAX711#show mac-address-table l2-address nni 2
Aging time: 300 seconds
Mac Address Port Vlan Flags
-------------------------------------------------------
ISCOM RAX711#
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