Users Guide

Parameters
fastboot Enable the system to restart the next time with the optimized booting-time
capability
Defaults By default, the device reloads in Jumpstart or BMP mode.
Command Modes GLOBAL CONFIGURATION
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.8(1.0) Introduced on the Z9100–ON.
9.3(0.0) Added support for the fastboot parameter for S6000 platform.
Usage
Information
You can configure an optimization technique to reduce the booting time of an S6000 Switch. This
mechanism is also called fast boot. With the reduced time that is taken to reboot the switch, upon a
manually-initiated reload or an expected restart of the device, the disruption in traffic that is serviced by
the switch is minimized. Traffic outage is lowered considerably (reduced to approximately 25 seconds in
certain network deployments) when you enable this optimization method for booting of the device. By
reducing the duration of traffic loss, subscriber sessions are processed and preserved in an effective and
seamless way.
lacp fast-switchover
Cause the physical ports to be aggregated faster by configuring this capability in a port-channel on both the nodes that are
members of a port-channel.
Syntax
lacp fast-switchover
To disable the capability of faster aggregation of the member ports of a LAG or a port-channel bundle,
use the no version of this command.
Defaults Not configured
Command Modes INTERFACE (conf-if-po-number)
Command
History
Version Description
9.8(1.0) Introduced on the Z9100–ON.
9.3(0.0) Introduced on the S6000.
9.2(1.0) Introduced on the Z9500.
Usage
Information
You can configure the optimal switchover functionality for LACP even if you do not enable the fast boot
mode on the system. You must configure the long timeout mechanism for the LACP session to enable the
fast boot capability to operate properly. This command applies to dynamic port-channel interfaces only.
When applied on a static port-channel, this command has no effect
If you configure the optimized booting-time capability and perform a reload of the system, the LACP
application sends PDUs across all the active LACP links immediately.
Related
Commands
show lacp — displays the LACP configuration.
encapsulation dot1q
Configures lite-subinterfaces.
Syntax
encapsulation dot1q vlan-id
Flex Hash and Optimized Boot-Up 493