Junos® OS Ethernet Interfaces Configuration ... - Juniper Networks

CHAPTER 2
Configuring Ethernet Interfaces
Ethernet Interfaces Overview
Copyright © 2012, Juniper Networks, Inc.
You can configure the following properties specific to aggregated Ethernet, Fast Ethernet,
Tri-Rate Ethernet copper, Gigabit Ethernet, and 10-Gigabit Ethernet interfaces:
• Ethernet Interfaces Overview on page 35
• Configuring Ethernet Physical Interface Properties on page 36
• Configuring J Series Services Router Switching Interfaces on page 40
• MX Series Router Interface Identifiers on page 42
• Enabling Ethernet MAC Address Filtering on page 42
• Configuring Ethernet Loopback Capability on page 45
• Configuring Flow Control on page 45
• Ignoring Layer 3 Incomplete Errors on page 46
• Configuring the Link Characteristics on Ethernet Interfaces on page 46
• Configuring Gratuitous ARP on page 48
• Adjusting the ARP Aging Timer on page 49
• Configuring the Interface Speed on Ethernet Interfaces on page 49
• Configuring the Ingress Rate Limit on page 50
• Configuring Multicast Statistics Collection on Ethernet Interfaces on page 51
• Configuring Weighted Random Early Detection on page 51
Ethernet was developed in the early 1970s at the Xerox Palo Alto Research Center (PARC)
as a data-link control layer protocol for interconnecting computers. It was first widely
used at 10 megabits per second (Mbps) over coaxial cables and later over unshielded
twisted pairs using 10Base-T. More recently, 100Base-TX (Fast Ethernet, 100 Mbps),
Gigabit Ethernet (1 gigabit per second [Gbps]), 10-Gigabit Ethernet (10 Gbps), and
100-Gigabit Ethernet (100 Gbps) have become available.
Juniper Networks routers support the following types of Ethernet interfaces:
• Fast Ethernet
• Tri-Rate Ethernet copper
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