Planet GS-5220-16S8C User Manual page 96

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
User's Manual of GS-5220-16S8C & GS-5220-16S8CR
Figure 4-5-1: Link Aggregation
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