Port Trunking
Trunk Group Operation Using LACP
The switch will not allow you to configure LACP on a port on which port
security is enabled. For example:
ProCurve(config)# int a17 lacp passive
Error configuring port A17: LACP and port security cannot
be run together.
ProCurve(config)#
To restore LACP to the port, you must remove port security and re-enable
LACP active or passive.
Changing Trunking Methods. To convert a trunk from static to dynamic,
you must first eliminate the static trunk.
Static LACP Trunks. Where a port is configured for LACP (Active or
Passive), but does not belong to an existing trunk group, you can add that port
to a static trunk. Doing so disables dynamic LACP on that port, which means
you must manually configure both ends of the trunk.
Dynamic LACP Trunks. You can configure a port for LACP-active or LACP-
passive, but on a dynamic LACP trunk you cannot configure the other options
that you can on static trunks. If you want to manually configure a trunk, use
the trunk command. (Refer to “Using the CLI To Configure a Static or Dynamic
Trunk Group” on page 12-14.)
VLANs and Dynamic LACP. A dynamic LACP trunk operates only in the
default VLAN (unless you have enabled GVRP on the switch and use Forbid to
prevent the ports from joining the default VLAN).
â– If you want to use LACP for a trunk on a non-default VLAN and GVRP is
disabled, configure the trunk as a static trunk.
12-23
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