Cisco Catalyst 4500 Series Software Configuration Guide

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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 75 Configuring Ethernet OAM and CFM
Enabling and Configuring Ethernet OAM
Use the no ethernet oam remote-loopback {supported | timeout} interface configuration command to
disable remote loopback support or remove the timeout setting.
This example shows how to enable OAM Remote Loopback:
Switch(config)# int gi1/3
Switch(config-if)# ethernet oam
Switch(config-if)# ethernet oam remote-loopback supported
Switch(config-if)# end
Switch# show running int gi1/1
Building configuration...
Current configuration : 209 bytes
!
interface GigabitEthernet1/1
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,19
switchport mode trunk
ethernet oam remote-loopback supported
ethernet oam
end
Switch# ethernet oam remote-loopback start int gi1/1
it is a intrusive loopback.
Therefore, while you test Ethernet OAM MAC connectivity,
you will be unable to pass traffic across that link.
Proceed with Remote Loopback? [confirm]
Switch# ethernet oam remote-loopback stop int gi1/1
Switch#
*Apr 9 12:52:39.793: %ETHERNET_OAM-6-LOOPBACK: Interface Gi1/1 has exited the master
loopback mode.
Configuring Ethernet OAM Link Monitoring
You can configure high and low thresholds for link-monitoring features. If no high threshold is
configured, the default is none; no high threshold is set. If you do not set a low threshold, the default is
a value lower than the high threshold.
Link event PDUs for rxcrc and trxcrc errors are not generated because they are nonstandard.
Step 3
Switch(config-if)# ethernet oam
remote-loopback {supported | timeout seconds}
Enables Ethernet remote loopback on the interface or set a
loopback timeout period.
• Enter supported to enable remote loopback.
• Enter timeout seconds to set a remote loopback
timeout period. The range is from 1 to 10 seconds.
Step 4
Switch(config-if)# ethernet oam
remote-loopback {start | stop} {interface
interface-id}
Turns on or turn off Ethernet OAM remote loopback on an
interface.
Step 5
Switch(config-if)# end
Returns to privileged EXEC mode.
Step 6
Switch# show ethernet oam status [interface
interface-id
]
Verifies the configuration.
Step 7
Switch# copy running-config startup-config
(Optional) Saves your entries in the configuration file.
Command Purpose

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