Cisco Catalyst 4500 Series Administration Guide

67-4
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
OL_28731-01
Chapter 67 Configuring Y.1731 (AIS and RDI)
Configuring Y.1731
Figure 67-1 Generating and Propagating AIS Messages Upon a Defect (Link Fail)
Configuring Y.1731
Note Y.1731 is enabled by default.
These sections are included:
• Y.1731 Configuration Guidelines, page 67-4
• Configuring AIS Parameters, page 67-5
• Clearing MEP from the AIS Defect Condition, page 67-6
• Clearing SMEP from the AIS Defect Condition, page 67-6
Y.1731 Configuration Guidelines
Configuration guidelines and restrictions for Y.1731 include the following:
• Because of STP’s restoration capability, do not expect ETH-AIS to be applied in the STP
environments.
• AIS is enabled by default on a CFM maintenance domain. The following section illustrates the
commands you can use to disable AIS on a maintenance domain. Likewise, RDI is a flag bit in the
CC message. Provided CC transmission is enabled, the present RDI flag of the CC message is set to
true or false.
Customer
Equipment
Operator A Bridges Operator B Bridges
Customer
Equipment
280624
MM MM
MM
MM
MMMMMMM
MM
MM
LLLLL
LLLLLLLLLLLMMMMMM
LLLLLLLL LLLLLLLL
MMMMM MMMMM MMMMM MMMMM MMMMM MMMMM MM
= Maintenance End Point
= Maintenance Intermediate Point
= AIS
= CC with RDI
MM
LL
7
4
3

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