Planet WGSW-2840 [42/104] Link aggregation

4.6.3 Link Aggregation

The Link Aggregation Control Protocol (LACP) provides a standardized means for exchanging information

between Partner Systems that require high speed redundant links. Link aggregation lets you group up to eight

consecutive ports into a single dedicated connection. This feature can expand bandwidth to a device on the

network. LACP operation requires full-duplex mode, more detail information refer to the IEEE 802.3ad standard.

Port link aggregations can be used to increase the bandwidth of a network connection or to ensure fault recovery.

Link aggregation lets you group up to 4 consecutive ports into a single dedicated connection between any two the

Switch or other Layer 2 switches. However, before making any physical connections between devices, use the

Link aggregation Configuration menu to specify the link aggregation on the devices at both ends. When using a

port link aggregation, note that:

。 The ports used in a link aggregation must all be of the same media type (RJ-45, 100 Mbps fiber).

。 The ports that can be assigned to the same link aggregation have certain other restrictions (see below).

。 Ports can only be assigned to one link aggregation.

。 The ports at both ends of a connection must be configured as link aggregation ports.

。 None of the ports in a link aggregation can be configured as a mirror source port or a mirror target port.

。 All of the ports in a link aggregation have to be treated as a whole when moved from/to, added or deleted

from a VLAN.

。 The Spanning Tree Protocol will treat all the ports in a link aggregation as a whole.

。 Enable the link aggregation prior to connecting any cable between the switches to avoid creating a data

loop.

。 Disconnect all link aggregation port cables or disable the link aggregation ports before removing a port link

aggregation to avoid creating a data loop.

It allows a maximum of eight ports to be aggregated at the same time. The Switch support Gigabit Ethernet ports

(up to 12 groups). If the group is defined as a LACP static link aggregationing group, then any extra ports selected

are placed in a standby mode for redundancy if one of the other ports fails. If the group is defined as a local static

link aggregationing group, then the number of ports must be the same as the group member ports.