Junos OS Interfaces Configuration Guide for ... - Juniper Networks

Junos OS Interfaces Configuration Guide for Security Devices
Understanding Interface Logical Properties
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Documentation
Understanding Protocol Families
12
The logical properties of an interface are the characteristics that do not apply to the
physical interface or the wires connected to it. Logical properties include:
• Protocol families running on the interface (including any protocol-specific MTUs)
• IP address or addresses associated with the interface. A logical interface can be
configured with an IPv6 address, IPv4 address, or both. The IP specification requires a
unique address on every interface of each system attached to an IP network, so that
traffic can be correctly routed. Individual hosts such as home computers must have a
single IP address assigned. Devices must have a unique IP address for every interface.
• Virtual LAN (VLAN) tagging
• Any firewall filters or routing policies that are operating on the interface
•
Junos OS Feature Support Reference for SRX Series and J Series Devices
• Junos OS Network Interfaces Configuration Guide
• Understanding Interfaces on page 3
• Understanding Protocol Families on page 12
• Understanding IPv4 Addressing on page 13
• Understanding IPv6 Addressing on page 16
• Understanding Virtual LANs on page 28
A protocol family is a group of logical properties within an interface configuration. Protocol
families include all the protocols that make up a protocol suite. To use a protocol within
a particular suite, you must configure the entire protocol family as a logical property for
an interface. The protocol families include common and not-so-common protocol suites.
This topic contains the following sections:
• Common Protocol Suites on page 12
• Other Protocol Suites on page 13
Common Protocol Suites
Junos OS protocol families include the following common protocol suites:
• Inet—Supports IP protocol traffic, including OSPF, BGP, and Internet Control Message
Protocol (ICMP).
• Inet6—Supports IPv6 protocol traffic, including RIP for IPv6 (RIPng), IS-IS, and BGP.
• ISO—Supports IS-IS traffic.
• MPLS—Supports MPLS.
Copyright © 2011, Juniper Networks, Inc.