Management Ethernet Interfaces Overview

Management interfaces are the primary interfaces for accessing the device remotely. Typically, a management interface is not connected to the in-band network but is connected instead to the device's internal network. You (the system administrator) can use the management interface to access the device over the network using utilities such as ssh and telnet. You can configure the device from anywhere, regardless of its physical location. SNMP can use the management interface to gather statistics from the device.

Authorized users and management systems use a management interface to connect to the device over the network. Some Juniper Networks devices have a dedicated management port on the front panel. For other types of platforms, you can configure a management interface on one of the network interfaces. You can dedicate this interface to management or share it with other traffic.

You must configure the management interface before users can access it. To set up the management interface, you need information such as its IP address, prefix, and next hop. We recommend configuring your devices so that traffic is not routed between the management interface and the other ports. In Junos OS Evolved, it is not possible to route traffic between the management interface and the other ports. Therefore, you should select an IP address in a separate (logical) network with a separate prefix (netmask).

The name of the management interface depends on the platform. For devices running Junos OS, the management Ethernet interface is usually named fxp0, em0, or me0. For Junos OS Evolved, use re0:mgmt-* for Routing Engine 0 and re1:mgmt-* for Routing Engine 1 management interfaces, where the * is the index of the management interface. If there is only one management interface, the index is 0.

Table 1 summarizes the management interfaces typically used on Junos and Junos Evolved platforms. It's always a good idea to refer to the specific documentation for your platform to confirm details about its management interface.

Refer to the Product Documentation page for details on your platform.

Alternatively, refer to the Day One + quick start guide for your platform at: Day One + Guides.