Specifications

CHAPTER

17-1

System Management Software Configuration Guide for Cisco IE 2000U and Connected Grid Switches

Configuring Ethernet OAM, CFM, and E-LMI

This chapter describes Ethernet Operations, Administration, and Maintenance (OAM) on the Cisco

Industrial Ethernet 2000U Series (IE 2000U) and Connected Grid Switches, hereafter referred to as

switch.

Ethernet OAM is a protocol for installing, monitoring, and troubleshooting Ethernet networks to

increase management capability within the context of the overall Ethernet infrastructure. The switch

supports IEEE 802.1ag Connectivity Fault Management (CFM), Ethernet Local Management Interface

(E-LMI), and IEEE 802.3ah Ethernet OAM discovery, link monitoring, remote fault detection, and

remote loopback. It also supports IP Service Level Agreements (SLAs) for CFM, and ITU-T Y.1731 fault

management. Ethernet OAM manager controls the interworking between any two of the protocols (CFM,

E-LMI, and OAM).

This chapter provides information about configuring CFM, E-LMI, and the Ethernet OAM protocol. It

defines the differences between the ratified CFM 802.1ag standard (draft 8.1) and the previous version

supported on the switch in Cisco IOS (draft 1.0). It also includes configuration information for CFM

ITU-TY.1731 fault management support in this release.

For complete command and configuration information for Ethernet OAM,CFM, E-LMI, and Y.1731, see

the documents listed in the “Related Documents” section on page 17-63.

Note The Service Diagnostics 2.0 C FM diagnostic script is part of the 12.2(53)EX release:

http://www.cisco.com/en/US/prod/iosswrel/ps6537/ps6555/ps9424/cisco_ios_service_diagnostics_scri

pts.html

Refer to the Service Diagnostic 2.0 user guide:

http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6555/ps9424/whitepaper_c11-566741.

html

This chapter contains the following sections:

• Information About Ethernet CFM, page 17-2

• Configuring Ethernet CFM, page 17-7

• Configuring Y.1731 Fault Management, page 17-26

• Managing and Displaying Ethernet CFM Information, page 17-32

• Information About the Ethernet OAM Protocol, page 17-34

• Configuring Ethernet OAM, page 17-35

• Displaying Ethernet OAM Protocol Information, page 17-46

• Enabling Ethernet Loopback, page 17-47