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Added Functionality in this Release

This section contains a brief introduction to features added in this release that are new for at least one switch listed in the

Hardware Supported section above.

 IPv4-Only Mode Optimization

PowerConnect switches allocate the maximum sizes for routing tables (and others, as applicable) for both IPv4 and

IPv6. Switch Performance Optimization allows the operator to optimize the allocation of switch silicon tables for

either IPv4 only or mixed IPv4/IPv6 operation. The template specified limits are enforced by routing components when

routes are being learned. When IPv4 only mode is selected, the following capabilities are disabled:



DHCPv6 relay



DHCPv6 server



IPv6 routing/forwarding



OSPFv3



IPv6 Neighbor Discovery



Configured v6-over-v4 tunnels



Automatic (6to4) tunnels



IPv6 Multicast

A reboot is required when changing to or from IPv4 mode.

 Auto-Install

USB based auto-install is an easy way to quickly bring up a switch with a known configuration. Network based auto-

install is useful in rolling out a configuration or firmware update to a group of switches or in maintaining a central

repository of switch configurations and firmware where the switches always obtain their firmware and configuration

from a central server.

The following clarifications are helpful in understanding the processing steps in auto-install:



Always power on the switch that is desired to be the stack master first



Auto-install never proceeds if a startup-config file is present on the (master) switch



USB auto-install is attempted first. Network auto-install only proceeds if USB auto-install fails.



If there are multiple .setup files present on the USB flash device, the powerconnect.setup file is selected



If a valid .setup file is not found on the USB flash device, the single .text file is used



If multiple .text files are present, the powerconnect.text file is used.

Network based auto-install utilizes information obtained from a DHCP server. Refer to the documentation for a

discussion of the DHCP options used by Auto-Install.

When auto-install downloads a firmware image to switch memory, it compares the version to the current switch image.

If different, the image in memory is copied to the switch backup image and activation of the image is attempted. If

activation succeeds, the switch is rebooted and auto-install then attempts configuration file download.

Auto-install configuration files are executed as a script.

For more details on Auto-Install, refer to the User's Guide.

System Firmware Version 4.1.0.6