4000 Router Series Fundamentals Configuration Guide

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Figure 48 Automatic configuration workflow

Interface selection process

The device follows the following process to select an interface for automatic configuration:

1. If the device has a management Ethernet interface that is up at Layer 2, the device uses the

management Ethernet interface for automatic configuration.

2. If the device has no management Ethernet interface in up state at Layer 2 but has one or more Layer

2 Ethernet interfaces in up state, the device selects the VLAN interface of the default VLAN.