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Juniper Networks Certified Associate, Junos (JNCIA-Junos) JN0-106 · Domain 4: Configuration basics

Special interfaces: lo0, fxp0/em0/me0, irb

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Last reviewed September 25, 2026 · Leer en español

Besides ordinary Ethernet ports, Junos has several special interfaces that do not map to a single transit port. Three appear throughout the JNCIA material: the loopback interface lo0, the management interface (fxp0, em0 or me0 depending on platform) and the integrated routing and bridging interface, irb.

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