FS joins hands with Ixia, the industry switch test authority, to run performance benchmark tests based on RFC 2544 for FS S3900 series switches. The S3900 series consists of three models: S3900-24T4S, S3900-24F4S, S3900-48T4S, which are fully managed stackable Gigabit switches, equipped with Broadcom chips, supporting 10G SFP+ uplinks, designed for SMB, campus and enterprise networks.
The Ixia test results based on RFC2544 on FS S3900 series switches mainly focus on throughput, frame loss rate and latency, which are important hardware features when judging the performance of a network switch. Key Findings in the test results are as following:
Throughput：All the throughput results reach the corresponding standard for Gigabit ports and 10G ports.
Frame Loss Rate: The frame loss rate of the three Gigabit switches is 0%, meaning no frame loss at all.
Latency: The latency ranges from 0-45k ns on 1G ports and 0-6k ns on 10G ports, surpasses the required 50-125k ns for Gigabit ports and 5-50k ns for 10G ports on the whole market.
The Ixia test with Ixia XGS12-SDL chassis starts by sending frames at the specified rate and the frames are sent from and received at the Ixia device, by which the real throughput, frame loss rate and latency of the S3900 switch are recorded.
Ixia test reports reveal the real performance of throughput, frame loss rate and switch latency of FS S3900 series switches (S3900-24T4S, S3900-24F4S, and S3900-48T4S) with visualized data.
Throughput is defined as the maximum forwarding rate that a network switch can achieve without losing a single packet. The measure of packet forwarding line rate is based on the number of 64-byte packets (minimum packets) sent per unit time. The standard packet forwarding rate is 1.488 Mpps for a Gigabit Ethernet port and 14.88 Mpps for a 10G port when forwarding a 64-byte packet. Here are the theoretical forwarding rate/throughput of the three S3900 switches.
|1G Port Number||24||24||48|
|10G Port Number||4||4||4|
|Theoretical Throughput||95 Mpps||95 Mpps||130 Mpps|
Both 1G and 10G ports of the three S3900 switches are tested. The real throughput of the three Gigabit switches all reaches the theoretical number. Take four 10G ports of S3900-24T4S as an example.
The real forwarding rate/throughput of the four 10G ports is 59523809.4 FPS (based on 64 bytes). Thus, the real average forwarding rate for each 10G port is 14880952.35 FPS (14.880952.35 Mpps), which is almost the same as the theoretical forwarding rate 14.88 Mpps. Similarly, the real average forwarding rate for each 1G port is 1.488 Mpps, the same as the theoretical rate. Real throughput of FS S3900 series switches tested by Ixia:
|Real 1G Port Throughput||35.71 Mpps||35.71 Mpps||71.42 Mpps|
|Real 10G Port Throughput||59.52 Mpps||59.52 Mpps||59.52 Mpps|
|Real Overall Throughput||95.23 Mpps||95.23 Mpps||130.94 Mpps|
|Theoretical Throughput||95 Mpps||95 Mpps||130 Mpps|
Defined as the percentage of frames that should have been forwarded by a network but were not, the frame loss rate is closely associated with the overall performance of a device service. None of the three FS S3900 Gigabit stackable switches lose packet or frame under Ixia test. The frame loss rate of them is 0%, which is exactly the same as the theoretical situation.
Switch forwarding latency is the amount of time it takes for the switch to move a packet from its incoming port to its outgoing port. Essentially, the latency test measures how quickly a switch can forward a packet. Normally, the switch latency for the Gigabit Ethernet switch ranges from 50~125 µs (50-125k ns) and 10GbE switch from 5~50 µs (5~50k ns). The shorter a latency is, the better the performance of a switch is.
For S3900 series Gigabit switches, the switch latency of Gigabit ports even ranges from 0~45k ns, shorter than the normal 50-125k ns. It indicates that this switch has a much better performance in latency than "standard" situations.
The FS S3900 series managed stackable Gigabit switches are quality-assured network switches with high throughput, no frame loss, and low latency. The highest throughput is up to 130 Mpps at 100% line rate, the same as the theoretical number. The frame loss rate reaches the best value of 0% and the latency ranges from 0-45k ns on 1G ports and 0-6k ns on 10G ports, which is much lower than the average of the whole market indicating excellent low latency performance.
My account manager told me S3900 series switch only support stacking in the same model, and S3910 series switch support stacking in the same series By FS on September 9, 2021
How many switch stacks does it support? I will have a Ring link needs to be built By Schauer on August 23, 2021
It supports up to 6 Units (Same Models) stacking, two of my switches stacking are working well. By FS on August 23, 2021
Do you have a recommendation on which of the smaller models would be a good unit to test? For requirements I’d say nothing bigger than 24 ports and is managed. Layer3 isn’t a requirement. 1 or 10GB uplink. By Jeffrey Vogt on August 4, 2021
I think the S3900-24T4S can fully meet your 24 port requirements, and the 24 ports of this switch are all 10/100/1000M speed ports, which can be well connected to various wired terminals in your network. It also has 4*10Gb uplinks. By FS on August 4, 2021
Does S3900-24T4S support FS.com Extreme optics (10301-compatible)? By AFI.IT Dept on August 1, 2021
Yes, FS S3900-24T4S has a low compatibility restriction and Extreme optics will work on it. By FS on August 2, 2021
I tried it and it works. By FS on August 2, 2021
FS S39 series could support LACP and work across the stack. For example, the 2nd port of device 1 and 2nd port of device 2 could achieve LACP with the 3rd ports of device 3 & device 4, The prerequisite is that the stack of device 1 & 2 have been done. By FS on July 25, 2021
What's the advantage of fully managed switches compared with smart managed pro switches? By Phengie on July 19, 2021
One advantage I am aware of is that fully managed switches support Stacking or MLAG, but the smart managed pro switches do not. By FS on July 19, 2021
Are rack mount kits included on the switch #72944? By Guinn on July 18, 2021
I have purchsed this switch, and it includes rack mount kits. By FS on July 20, 2021
Can you give me a pointer on how to change that to 192.168.1.7 via the webinterface? By Demar on July 12, 2021
You can do it through CLI but not web, the command will be S3900-24T4S(config)#management ip address 192.168.1.7/24 By FS on July 12, 2021
We plan to install the switch in an open environment. We don't want to be bothered by the noise of the network switch, so silence is the most important thing. Any suggestions? By Bushnell on July 6, 2021
Recommended use #S3900-24T4S, Fanless, suitable for your use. By FS on July 6, 2021