Cisco Catalyst 4500 Series Administration Guide

66-35
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
OL-28731-01
Chapter 66 Configuring Ethernet OAM and CFM
Enabling and Configuring Ethernet OAM
Enabling and Configuring Ethernet OAM
This section includes this information:
• Ethernet OAM Default Configuration, page 66-35
• Ethernet OAM Configuration Guidelines, page 66-35
• Enabling Ethernet OAM on an Interface, page 66-36
• Enabling Ethernet OAM Remote Loopback, page 66-37
• Configuring Ethernet OAM Link Monitoring, page 66-38
• Configuring Ethernet OAM Remote Failure Indications, page 66-42
• Configuring Ethernet OAM Templates, page 66-45
Ethernet OAM Default Configuration
The default configuration is as follows:
• Ethernet OAM is disabled on all interfaces.
• When Ethernet OAM is enabled on an interface, link monitoring is automatically turned on.
• Remote loopback is disabled.
• No Ethernet OAM templates are configured.
Ethernet OAM Configuration Guidelines
Follow these guidelines when configuring Ethernet OAM:
• The switch does not support monitoring of egress frames sent with cyclic redundancy code (CDC)
errors. The ethernet oam link-monitor transmit crc interface-configuration or
template-configuration commands are visible but are not supported on the switch. The commands
are accepted but are not applied to an interface.
• For a remote failure indication, the switch does not generate Link Fault or Critical Event OAM
PDUs. However, if these PDUs are received from a link partner, they are processed. The switch
generates and receives Dying Gasp OAM PDUs when Ethernet OAM is disabled, the interface is
shut down, the interface enters the error-disabled state, or the switch is reloading. It can respond to,
but not generate, Dying Gasp PDUs based on loss of power.
• The switch does not support Ethernet OAM loopback on ports that belong to an EtherChannel, ISL
trunk, and promiscuous trunk.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E