Chapter 131 Ethernet Oam Link Fault Management; Ethernet Oam Link Fault Management—Overview; Switch - Juniper JUNOS OS 10.3 - SOFTWARE Manual

CHAPTER 131
Ethernet OAM Link Fault Management
Ethernet OAM Link Fault Management—Overview
Understanding Ethernet OAM Link Fault Management for an EX Series Switch
Copyright © 2010, Juniper Networks, Inc.
Ethernet OAM Link Fault Management—Overview on page 3725
Example of Ethernet OAM Link Fault Management Configuration on page 3726
Configuring Ethernet OAM Link Fault Management on page 3729
Configuration Statements for Ethernet OAM Link Fault Management on page 3732
Operational Mode Commands for Ethernet OAM Link Fault Management on page 3756
Understanding Ethernet OAM Link Fault Management for an EX Series
Switch on page 3725
Juniper Networks Junos operating system (Junos OS) for Juniper Networks EX Series
Ethernet Switches allows the Ethernet interfaces on these switches to support the IEEE
802.3ah standard for the Operation, Administration, and Maintenance (OAM) of Ethernet
in access networks. The standard defines OAM link fault management (LFM). You can
configure IEEE 802.3ah OAM LFM on point-to-point Ethernet links that are connected
either directly or through Ethernet repeaters. The IEEE 802.3ah standard meets the
requirement for OAM capabilities even as Ethernet moves from being solely an enterprise
technology to a WAN and access technology, and the standard remains
backward-compatible with existing Ethernet technology.
Ethernet OAM provides the tools that network management software and network
managers can use to determine how a network of Ethernet links is functioning. Ethernet
OAM should:
Rely only on the media access control (MAC) address or virtual LAN identifier for
troubleshooting.
Work independently of the actual Ethernet transport and function over physical Ethernet
ports or a virtual service such as pseudowire.
Isolate faults over a flat (or single operator) network architecture or nested or
hierarchical (or multiprovider) networks.
The following OAM LFM features are supported on EX Series switches:
3725