Juniper JUNOS OS 10.4 User Manual

Example: Configuring Ethernet LFM Between PE and CE
In this example, LFM is enabled on an IP link between the provider edge (PE) and customer
edge (CE) interfaces. If the link goes down, the fault will be detected by LFM and the
interfaces on both sides will be marked Link-Layer-Down. This results in notifications to
various subsystems (for example, routing) which will take appropriate action.
The link running LFM is shown in Figure 19 on page 138.
Figure 19: Ethernet LFM Between PE and CE
To configure Ethernet LFM on an IP link between PE and CE interfaces:
1.
Configure LFM on the PE router:
[edit]
interfaces ge-1/1/0 {
unit 0 {
family inet {
address 11.11.11.1/24;
}
}
}
protocols {
oam {
ethernet {
link-fault-management {
interface ge-1/1/0 {
pdu-interval 1000;
pdu-threshold 5;
}
}
}
}
}
2.
Configure LFM on the CE router:
[edit]
interfaces ge-1/1/0 {
unit 0 {
family inet {
address 11.11.11.2/24;
}
}
}
protocols {
oam {
ethernet {
Copyright © 2012, Juniper Networks, Inc.138
Junos OS 12.1 MX Series 3D Universal Edge Routers Solutions Guide

Juniper JUNOS OS 10.4 Specifications

General

OS Name	JUNOS OS
Version	10.4
Release Date	2010
Category	Network Router
Vendor	Juniper
Routing Protocols	RIP, OSPF, IS-IS, BGP, MPLS
Management Protocols	CLI, SNMP, NETCONF
Security Features	Firewall
Features	Advanced routing, security, and management

Summary

Part 1 Overview

Chapter 1 Overview of Ethernet Solutions

Provides an overview of Ethernet solutions and their application in network environments.

Chapter 2 Basic Layer 2 Features on MX Series Routers

Layer 2 Features for a Bridging Environment

Details essential Layer 2 configurations for bridging environments on MX Series routers.

Chapter 3 Virtual Switches

Layer 2 Features for a Switching Environment

Discusses Layer 2 capabilities provided by MX Series routers for switching environments.

Chapter 4 VLANs Within Bridge Domain and VPLS Environments

VLANs Within a Bridge Domain or VPLS Instance

Explains how VLANs are managed within bridge domains and VPLS instances.

Chapter 5 Bulk Administration of Layer 2 Features on MX Series Routers

Bulk Configuration of VLANs and Bridge Domains

Explains how to efficiently configure multiple VLANs and bridge domains using single statements.

Chapter 6 Dynamic Profiles for VLAN Interfaces and Protocols

Dynamic Profiles for VPLS Pseudowires

Explains how dynamic profiles are used to manage VLAN parameters for VPLS pseudowire interfaces.

Chapter 7 MX Series Router as a DHCP Relay Agent

MX Series Router as a Layer 2 DHCP Relay Agent

Details how MX Series routers can act as Layer 2 DHCP relay agents, leveraging MAC addresses.

Chapter 8 MX Series Router in an ATM Ethernet Interworking Function

MX Series Router ATM Ethernet Interworking Function

Describes the role of MX Series routers in ATM Ethernet interworking scenarios.

PART 3 Ethernet Filtering, Monitoring, and Fault Management Solutions for MX Series Routers

Layer 2 Firewall Filters

Details the configuration and application of Layer 2 firewall filters for traffic control on MX Series routers.

Chapter 9 Layer 2 Firewall Filters

Firewall Filters for Bridge Domains and VPLS Instances

Explains how to configure firewall filters for traffic control within bridge domains and VPLS instances.

Chapter 10 IEEE 802.1ag OAM Connectivity-Fault Management

Ethernet Operations, Administration, and Maintenance

Provides an overview of Ethernet OAM concepts and configuration on MX Series routers.

Chapter 11 ITU-T Y.1731 Ethernet Frame Delay Measurements

Ethernet Frame Delay Measurements

Explains the importance and methods of measuring Ethernet frame delay for performance management.

Chapter 12 IEEE 802.3ah OAM Link-Fault Management

Ethernet OAM Link Fault Management

Describes Link Fault Management (LFM) for physical link fault detection and management on Ethernet links.

Chapter 13 Ethernet Ring Protection

Ethernet Ring Protection

Explains the basic concept of Ethernet ring protection and its role in network reliability.

Ethernet Ring Protection Using Ring Instances for Load Balancing

Discusses using ERP ring instances to achieve traffic load balancing while maintaining network protection.

PART 4 Index

Index

An alphabetical listing of terms and topics covered in the document for quick reference.