Testing Network Switch Performance Evaluating speed and reliability of network switches.
Testing Network Switch Performance Evaluating speed and reliability of network switches.
If your switch lacks line rate capability, it might be due to features not managed by the ASIC, which forces the CPU to struggle, or it could be faulty. A switch running solely at L2 will maintain line rate unless it's an outdated, low-quality model designed only for CPU switching. There are many L3-compatible switches available that support line rate, though they tend to be pricier.
For everyday needs of a typical user or a small office with a handful of computers, nearly any switch will suffice. The main variations come when you need advanced capabilities and varied functions such as multiple VLANs, port mirroring, IPv6 support, handling many simultaneous connections, combining SPF and SPP over RJ45, low latency requirements, QoS, etc. I’ve managed network infrastructure in a university setting for about 10 to 15 years ago... I connected three TELESYS gigabit switches using proprietary cabling (~17 Gbps) that linked four floors of students, around 100 computers in total. Then the building was linked to another four structures, with the farthest point about 102 meters away based on cable length (well over the legal limit, but gigabit worked without packet loss). Overall, 200 to 300 students shared files via DC++ and FTP between themselves... back then, setting that up would have been a challenge with standard switches.
Heh, back in 2003 I had a DC++ network at my engineering school... there were two campuses in different cities connected to the same network, so we had to be precise about our location. We didn’t want to download from the other site because it used their bandwidth lines, which cost them money. Some rooms still had 10Mbps hubs, and it was hilarious to run a packet capture program and tell someone I told them the room should load a random picture online, then show it on my screen.
About the question, any professional-grade switch should clearly understand its capabilities. Even my $35 home-grade switch handled an 8-port setup.