ZyXEL Communications GS1510-16 -, User Manual

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GS1510 Series User’s Guide
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H A P T E R
13
Link Aggregation
13.1 Overview
This chapter shows you how to logically aggregate physical links to form one
logical, higher-bandwidth link.
13.2 What You Can Do
• Use the Static Trunk screen ( Section 13.4 on page 78 ) to aggregate groups of
physical ports into one higher capacity link.
• Use the LACP screen ( Section 13.5 on page 79 ) to enable Link Aggregation
Control Protocol (LACP).
13.3 What You Need to Know
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 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.
13.3.1 Dynamic Link Aggregation
The Switch adheres to the IEEE 802.3ad standard for static and dynamic (LACP)
port trunking.