ZyXEL Communications XGS-4526 User Manual

XGS-4526/4528F/4728F User’s Guide

This chapter shows you how to logically aggregate physical links to form one 
logical, higher-bandwidth link.

Link aggregation (trunking) is the grouping of physical ports into one logical 
higher-capacity link. You may want to trunk ports if for example, it is cheaper to 
use multiple lower-speed links than to under-utilize a high-speed, but more costly, 
single-port link.

However, the more ports you aggregate then the fewer available ports you have. A 
trunk group is one logical link containing multiple ports.

The beginning port of each trunk group must be physically connected to form a 
trunk group. 

The Switch supports both static and dynamic link aggregation.

Note: In a properly planned network, it is recommended to implement static link 

aggregation only. This ensures increased network stability and control over the 
trunk groups on your Switch.

 for a static port trunking example.

The Switch adheres to the IEEE 802.3ad standard for static and dynamic (LACP) 
port trunking.

The Switch supports the link aggregation IEEE802.3ad standard. This standard 
describes the Link Aggregation Control Protocol (LACP), which is a protocol that 
dynamically creates and manages trunk groups.