Core and data center applications are the strengths of Arista products. The distribution layer is also a good fit. For the access layer, it would be more of a niche product.
The focus of the equipment is SoHo, that is, small businesses or companies and even domestic use. It meets these scenarios very well. Using for large scale, they can present difficulties to maintain throughput, that is, its use in large networks can be difficult to maintain. Another issue to be taken into account is technical assistance, they are not as agile as the competition.
D-Link Ethernet Switches are working fine and fulfill all of our organization's needs cost-wise and efficiency-wise. The rating that I gave would vary based on performance and durability. We used an open environment without an IP-rated network rack, but its working fine and we handle all weather issues carefully and manage the network smoothly. Takeaways: cost effective, handles complex networks, and very good performance.
I have given it 9 out of 10 just because of its low cost and additional features that have been an integral part of any product, otherwise, the load management part was far more inferior as compared to the Cisco switches, as those switches have a spanning tree protocol built-in.
I have used the Catalyst 6500 series in the past. From my point of view, the Arista surpasses the Catalyst on just about every front. Originally we were planning on implementing the Nexus 7000/7700 series switches for our core. Though a little more feature rich, it did not provide features we needed that the Arista did. The Nexus also was a confusing and complex platform to work with. Also, the Nexus was a significantly more expensive solution. Although very happy with the Arista switches we may evaluate the Aruba HPE 8400 chassis-based switches along with Arista switches in the future.
They stack up great. In performance, Price, Physical style. I have been around many networks with a business that has spent three times as much on a network solution and Dlink matches up toe to toe. Has of now they are moving over to Cisco language. So this will improve the availability of engineers and support.