New and Changed Features, 12.1(10)E

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(10)E.

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

Feature	Description	Chapter or Section
Priority Soft PVC Preservation on IMA Bandwidth Reduction	Allows soft PVCs or PVPs to be configured with priority so that connections with the highest priority are more likely to be preserved if an IMA link goes down. Connections with lower or no priorities are cleared, thereby maintaining bandwidth for the most important connections.	See Configuring Soft PVCs and Soft PVPs with Priority
Standard Frame Relay for Soft PVCs	Allows users to specify that frame relay soft PVCs use standard signaling.	See Standard Signalling for Frame Relay Soft PVCs
Scheduler Enhancement for atm pvc/pvp	Specifies an OC-12 scheduler for traffic leaving a virtual circuit.	See Configuring Virtual Circuits
Per Packet Load Sharing	Allows all IP or TCP traffic to be load shared per packet on Gigabit Ethernet interfaces.	See IP Load Sharing

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

Feature	Description	Commands
Priority Soft PVC Preservation on IMA Bandwidth Reduction	Allows soft PVCs or PVPs to be configured with priority so that connections with the highest priority are more likely to be preserved if an IMA link goes down. Connections with lower or no priorities are cleared, thereby maintaining bandwidth for the most important connections.	atm svc-clear by-priority atm soft-vc atm soft-vp ces pvc (Soft PVC) frame-relay soft-vc frame-relay called-soft-vc
Standard Frame Relay for Soft PVCs	Allows users to specify that frame relay soft PVCs use standard signaling.	frame-relay soft-vc frame-relay called-soft-vc
Scheduler Enhancement for atm pvc/pvp	Specifies an OC-12 scheduler for traffic leaving a virtual circuit.	atm pvc atm pvp
Per Packet Load Sharing	Allows all IP or TCP traffic to be load shared per packet on Gigabit Ethernet interfaces.	epc xpif-ip-per-pack-all ip load-sharing per-packet
ATM Threshold Group Enhancements	Modifies the maximum value of the minimum queue limit to the lesser of 16383 cells or the value specified by the atm threshold-group max-queue-limit command. The previous minimum queue limit was the lesser of 1023 cells or the value specified by the atm threshold-group max-queue-limit command.	atm threshold-grou p max-queue-limit

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New and Changed Features