New and Changed Features, 12.1(12c)EY

This document contains a summary of the new and changed features for the Catalyst 8540, Catalyst 8510, and LightStream 1010 switch routers for Cisco IOS Release 12.1(12c)EY.

Table 1 New and Changed Features in the ATM Switch Router Software Configuration Guide

Feature	Description	Chapter or Section
SSH (Secure Shell)	SSH (Secure Shell) is an application which runs on top of a reliable transport layer, such as TCP/IP, and provides strong authentication and encryption capabilities.	For more information, see "Configuring System Management Functions," of the ATM Switch Router Software Configuration Guide.
Circuit Emulation Services (CES) switched VCs	This feature allows CES and ATM interfaces to interconnection over switched VCs.	For more information, see "Configuring Circuit Emulation Services" of the ATM Switch Router Software Configuration Guide.

Table 2 New and Changed Features in the ATM and Layer 3 Switch Router Command Reference

Feature	Description	Commands
IMA interface can be cleared based on signaled priority.	Allows clearing the transit legs of guaranteed-bandwidth soft PVCs or SVCs on an IMA interface based on signaled priority when bandwidth is lost on the IMA interface	atm svc-clear by-priority
Circuit Emulation Services (CES) switched VCs	This feature allows CES and ATM interfaces to interconnection over switched VCs.	ces svc crypto key
SSH (Secure Shell)	SSH (Secure Shell) is an application which runs on top of a reliable transport layer, such as TCP/IP, and provides strong authentication and encryption capabilities.	disconnect ssh ip ssh ssh show ip ssh
SONET soaking interval	Allows configuration of the interval before declaring or clearing a SONET connection failure.	sonet soakinginterval
SNMP Version 3	SNMP Version 3 (SNMPv3) provides secure exchanges of management data between network devices and management stations.	snmp-server host

Table of Contents

New and Changed Features