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Management Ethernet and Internal Ethernet Interfaces

The M-series and T-series routing platforms have both a management Ethernet interface and one or two internal Ethernet interfaces. The J-series routing platform has a management Ethernet interface. These interfaces are described in the following sections:

For more information, see Management Ethernet and Internal Ethernet Interface Operational Mode Commands.

M-series and T-series Management Ethernet and Internal Ethernet Interfaces

The JUNOS software automatically creates the routing platform's management Ethernet interface, fxp0, which is an out-of-band management interface for connecting to the router. To use fxp0 as a management port, you must configure its logical interface, fxp0.0, with a valid IP address.

The JUNOS software also creates the internal Ethernet interface, fxp1, which connects the Routing Engine (re0) to the Packet Forwarding Engine. If the routing platform has redundant Routing Engines, another internal Ethernet interface, fxp2, is created to connect the second Routing Engine (re1) to the Packet Forwarding Engine.

When you enter the show interfaces command, the management Ethernet and internal Ethernet interfaces (and logical interfaces) are displayed:

user@host> show interfaces ?

...

fxp0

fxp0.0

fxp1

fxp1.0

fxp2

fxp2.0

...

J-series Management Ethernet Interface

The JUNOS software automatically creates the routing platform's management Ethernet interface, fe-0/0/0, which is an out-of-band management interface for connecting to the router. To use fe-0/0/0 as a management port, you must configure its logical interface, fe-0/0/0.0, with a valid IP address. When you enter the show interfaces command, the management Ethernet interface (and logical interface) is displayed:

user@host> show interfaces ?

...

fe-0/0/0

fe-0/0/0.0

...
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