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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.
C9000 Series
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.x.x.x Introduced on the C9000.
9.3(0.0) Introduced on the S6000.
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.
594
Flex Hash and Optimized Boot-Up