GarrettCom MNS-6K-SECURE 14.1.4 Manual Do Utilizador

ink aggregation Link Aggregation Control Protocol (LACP) is part of an IEEE 
specification (IEEE 802.3ad) that allows several physical ports to be grouped or 
bundled together to form a single logical channel. This increases the throughput 
across two devices and provides improved reliability. 

 

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he IEEE802.3ad standard provides for the formation of a single 

ayer 2 link from two or more standard Ethernet links using the 

Link Aggregation Control Protocol (LACP). LACP provides a 

robust means of assuring that both ends of the link are up and agree to be members 
of the aggregation before the link member is activated. LACP trunking is a method 
of combining physical network links into a single logical link for increased 
bandwidth. With LACP the effective bandwidth of a trunk and network availability is 
increased. Two or more Fast Ethernet connections are combined as one logical 
trunk in order to increase the bandwidth and to create resilient and redundant links. 
By taking multiple LAN connections and treating them as a unified, aggregated link, 
Link Aggregation provides the following important benefits:  

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•  Higher link availability – in case a link fails, the other links continue to 

operate 

•  Increased link capacity – the effective throughput is increased 

•  Better port utilization – allows unused ports to be used as trunk ports 

allowing better throughput and availability 

•  Interoperability – being a standard allows LACP to work across different 

hardware platforms where LACP is supported 

 
Failure of any one physical link will not impact the logical link defined using LACP.  
The loss of a link within an aggregation reduces the available capacity, but the 
connection is maintained and the data flow is not interrupted. 
 

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