Configure Ethernet Interfaces

Ethernet was developed in the early 1970s at the Xerox Palo Alto Research Center as a data-link control layer protocol for interconnecting computers. It was first widely used at 10 Mbps over coaxial cables and later over unshielded twisted pairs using 10BaseT. More recently, 100BaseTX (Fast Ethernet, 100 Mbps) and Gigabit Ethernet (1 Gbps) have become available.

Juniper Networks routers support the following types of Ethernet interfaces:

• Fast Ethernet
• Gigabit Ethernet
• Management Ethernet interface, which is an out-of-band management interface within the router
• Internal Ethernet interface, which connects the Routing Engine to the Packet Forwarding Engine

This chapter discusses the following topics specific to configuring the different types of Ethernet interfaces in the router:

• Configure Fast Ethernet and Gigabit Ethernet Physical Interface Properties
• Configure 802.1Q VLANs
• Configure Static ARP Table Entries
• Configure VRRP
• Configure the Management Ethernet Interface
• Configure the Internal Ethernet Interface
• Example: Configure Fast Ethernet Interfaces
• Example: Configure Gigabit Ethernet Interfaces