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Time: August 15th, 2023

This article focuses on the question of what is an aggregation switch and how it works its uses and its implementation. Read till the end to learn this very important concept in network technologies.  


Before we jump into the question of what is an aggregation switch, first we need to explore the tech behind them. Data aggregation refers to any procedure that gathers data and expresses it in a condensed manner. Amounts or summary statistics are used in place of atomic data rows, which are often collected from several sources when data is aggregated. In place of groups of observed aggregates, summary statistics based on those observations are used. Since aggregate data can answer analytical questions and greatly speed up the process of querying huge amounts of data, it is typically found in data warehouses.

Similarly, Link aggregation enables the concurrent combination of several network connections to boost throughput and offer redundancy if one link fails. Additionally, link aggregation load balance enables the distribution of processing and communications activity across multiple links in a trunk, preventing a single link from becoming overloaded. 

Additionally, the link can be improved using the hardware that already exists, negating the need to upgrade to a higher-capacity link. A standard, vendor-neutral link aggregation protocol called LACP (link aggregation control protocol), which is supported by IEEE 802.3ad, must be used to configure link aggregation.

What are Aggregation Switches?

So, what is an aggregation switch? It is a networking tool called an aggregation switch that enables the consolidation of several network connections into a single link. This makes it possible to boost bandwidth and improve network efficiency. To aggregate numerous links into a single, logical connection, aggregation switches typically use link aggregation protocols like Ethernet Aggregation and Link Aggregation Control Protocol (LACP). As a result, they can provide excellent flexibility and scalability, making network expansion or reconfiguration quick and simple.

A core switch/router is generally connected to several ToR switches via aggregation switches. A wide area network (WAN) connection to the outside carrier network may be included in the core switch, which is at the top of the cloud data center network pyramid. Due to the high port counts and high bandwidth links of these switches, modular designs with two-stage fabrics are used in either a star topology or a fat-tree topology. 

High bandwidth aggregation ports are switched or routed to uplink ports with even greater capacity. The uplink interface cards in the case of core switches might be created to interface directly with the carrier network and might have capabilities like network security and monitoring. These are pricey systems that must adhere to strict reliability standards. 

Aggregation switches are typically employed in networks with high traffic volumes or lots of users because they are effective at distributing data across numerous lines. In terms of performance and switching speed, aggregation switches typically outperform access switches. They can route network traffic, implement network security regulations, and add a crucial layer of redundancy and scalability to the network. With Link Aggregation, you can get these benefits on your switch:

1. Traffic is transparently and dynamically redirected to one of the other physical links in the link aggregation group (LAG) if one of the physical links goes down.

2. It is possible to load-balance traffic among the physical links.

a bigger bandwidth. The physical links that are combined give more bandwidth than the separate links do.

3. A physical network upgrade may be pricey, especially if additional cable runs are necessary. By using link aggregation, bandwidth can be increased without buying new hardware.

Asses switches are very common in the industry and the main difference between these two is their level of operation and performance. Users can immediately connect to or access the network from the location of the access switch. The aggregation switch conducts uploading and distributing in addition to other tasks including policy implementation, security, and working group access. It is used to lessen the stress on the core layer equipment.

Another aspect is their features. To manage all traffic from access layer devices, fewer interfaces, and faster switching rates, aggregation switches need more performance than access layer switches. Additionally, the access switch includes user management features like address authentication, user authentication, and user information collection in addition to offering sufficient bandwidth for access layer access.


What is an aggregation switch? In network architecture, they are now extremely important. The technology behind these switches is link aggregation which is the process of constructing parallel network architecture to provide redundancy or enhance performance. It boosts bandwidth and offers graceful degradation as a result of failure. 

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