Users Guide

Version Description
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.5.1.0 Added support for 4-port 40G line cards on the E-Series.
8.3.7.0 Introduced on the S4810.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.2.1.1 Introduced on the E-Series.
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
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S6100–ON.
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.
lacp long-timeout
Configure a long timeout period (30 seconds) for an LACP session.
Syntax
lacp long-timeout
To reset the timeout period to a short timeout (1 second), use the no lacp long-timeout command.
Link Aggregation Control Protocol (LACP) 937