Juniper-networks JUNOS OS 10.4 Manual do Utilizador descarregar pdf (Página 163)

CHAPTER 12

IEEE 802.3ah OAM Link-Fault

Management

This chapter discusses the following topics:

•

Ethernet OAM Link Fault Management on page 143

•

Example: Configuring Ethernet LFM Between Provider Edge and Customer

Edge on page 144

•

Example: Configuring Ethernet LFM for CCC on page 145

•

Example: Configuring Ethernet LFM for Aggregated Ethernet on page 146

•

Example: Configuring Ethernet LFM with Loopback Support on page 148

Ethernet OAM Link Fault Management

Link Fault Management (LFM) can be used for physical link-level fault detection and

management. The IEEE 802.3ah LFM works across a point-to-point Ethernet link either

directly connected or through repeaters.

LFM provides the following functions:

•

Failure detection on physical links in both directions, as well as unidirectional failures.

•

Ability to put a port in link-loopback mode remotely for diagnostics.

•

Report and receive link error events such as framing or symbol errors.

LFM runs at the physical or aggregated interface level. When configured on an aggregated

interface, LFM is run individually on each member link. LFM is a link-layer protocol and

does not need a Layer 3 (IPv4 or IPv6) address to operate. This allows for LFM to function

on circuit cross-connect/transport cross-connect (CCC/TCC) encapsulated interfaces.

Documentation

Ethernet OAM•

• Example: Configuring Ethernet LFM Between Provider Edge and Customer Edge on

page 144

• Example: Configuring Ethernet LFM for CCC on page 145

• Example: Configuring Ethernet LFM for Aggregated Ethernet on page 146

• Example: Configuring Ethernet LFM with Loopback Support on page 148

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Juniper-networks JUNOS OS 10.4 Manual do Utilizador Página 163