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Syntax:
no interface <port-list> lacp
Removes <port-list> from any dynamic LACP trunk and returns the ports in <port-list> to passive
LACP.
Example:
Port C6 belongs to an operating, dynamic LACP trunk. To remove port C6 from the dynamic trunk and return it to
passive LACP, do the following:
switch(config)# no interface c6 lacp
switch(config)# interface c6 lacp passive
In the above Example:, if the port on the other end of the link is configured for active LACP or static LACP, the
trunked link will be re-established almost immediately.
Specifying Minimum Active Links for LACP
Link Aggregation Control Protocol (LACP) allows the operator to configure a minimum number of active member
links in a trunk group to remain operational. When the number of active member links in the trunk is less than the
configured threshold value, the LACP trunk will be shut down. An additional option is provided to configure an
enable-timer, on expiry of which the LACP trunk brought down by the min-active-links functionality, will
be re-enabled. Once the trunk member ports are re-enabled, the validation for the active links against the
configured threshold is performed after a minute and the trunk state will be decided accordingly. The trunk will be
up and the traffic will be forwarded though the LACP trunk during this period.
NOTE:
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lacp min-active-links
Syntax
lacp min-active-links <value>
no lacp min-active-links <value>
Description
Configures the minimum threshold value for the active member links in a LACP trunk group.
The no form of this command deletes the configured threshold and sets the threshold value to default.
Command context
interface
Chapter 5 Port Trunking
If the minimum active links are configured without enable-timer configuration, the LACP trunk
disabled by the feature will remain down until the operator explicitly disables and re-enables the
port or triggers a port up indication by any alternative means.
If the number of active links in a LACP trunk is less than the threshold value, the trunk will not be
functional and traffic will not pass through the respective trunk.
If the number of active links in the trunk drops below the threshold, the entire trunk will be brought
down and complete traffic flowing through the same will be dropped. Hence, this configuration
must be used carefully in a topology where there is a redundant traffic path.
It is recommended to configure the min-active-links on one side of the trunk.
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Troubleshooting
