Lacp Port Modes; Lacp Individual - Lenovo RackSwitch G8264 Application Manual

LACP Port Modes

LACP Individual

182
G8264 Application Guide for ENOS 8.4
Up to 64 ports can be assigned to a single LAG, but only 32 ports can actively
participate in the LAG at a given time.Each port on the switch can have one of the
following LACP modes.
 off (default)
You can configure this port into a regular static LAG.
active

The port is capable of forming an LACP LAG. This port sends LACPDU packets
to partner system ports.
passive

The port is capable of forming an LACP LAG. This port only responds to the
LACPDU packets sent from an LACP active port.
Each active LACP port transmits LACP data units (LACPDUs), while each passive
LACP port listens for LACPDUs. During LACP negotiation, the admin key is
exchanged. The LACP LAG is enabled as long as the information matches at both
ends of the link. If the admin key value changes for a port at either end of the link,
that port's association with the LACP LAG is lost.
When the system is initialized, all ports by default are in LACP off mode and are
assigned unique admin keys. To make a group of ports aggregable, you assign them
all the same admin key. You must set the port's LACP mode to active to activate
LACP negotiation. You can set other port's LACP mode to passive to reduce the
amount of LACPDU traffic at the initial LAG‐forming stage.
Use the following command to check whether the ports are aggregated:
RS G8264 # show lacp information
Notes:
 If you configure LACP on ports with 802.1X network access control, make sure
the ports on both sides of the connection are properly configured for both LACP
and 802.1X.
IEEE 802.1x and LACP cannot both be enabled on port 1.

Ports with LACP enabled (active or passive) are prevented by default from
forming individual links if they cannot join an LACP LAG. To override this
behavior, use the following commands:
RS G8264(config) # interface port <port no. or range>
RS G8264(config­if) # no lacp suspend­individual
This allows the selected ports to be treated as normal link‐up ports, which may
forward data traffic according to STP, Hot Links or other applications, if they do
not receive any LACPDUs.