Link aggregation

What is link aggregation?
Link Aggregation (LAG) is used to describe different methods of using multiple parallel network links to increase throughput beyond the limit that a link (link) can achieve. With link aggregation, physical ports must be on a single switch. Split multi-link trunking (SMLT) and routed SMLT (RSMLT) remove this restriction, and physical ports are allowed to connect / split between two switches.

This term is also known as multi-link trunking (MLT), link bundling, Ethernet / network / NIC bonding or NIC teaming.

Link aggregation is a technique used in a high-speed backbone network to enable the fast and inexpensive transmission of bulk data. The best feature of link aggregation is its ability to increase or increase network capacity while maintaining a fast transmission speed and not changing any hardware devices, thereby reducing costs.

Cost effectiveness

LAG is a very common technique for building a new network infrastructure that uses additional cables beyond current requirements. Labor costs are much more than the cost of cabling. Therefore, when network expansion is required, the extra cables are used without any additional work. However, this is only possible if additional ports are available.

Higher connection availability

This is the best quality of LAG. A communication system works even if a connection fails. In such situations, the connection capacity is reduced, but the data flow is not interrupted.

Network backbone

There used to be many techniques for networking, but IEEE standards are always preferred. LAG supports network load balancing. Various load balancing algorithms are set by network engineers or administrators. In addition, the network speed is increased in small steps, which saves both resources and costs.

limitations

In all types of implementations, every link and hardware is standardized and designed not to affect network efficiency or link speed. In addition, with single switching, all types of ports (802.3ad, broadcast, etc.) must be on a single switch or the same logical switch.

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Further explanations for the first letter L