FAQs about FS.COM 100G Switches

Updated on January 8, 2021

As the growth deployment of virtualized applications, software-defined networking (SDN) and server-to-server traffic, high-performance Ethernet switches are required in the switch market. FS.COM provides S-series 100G switches (S5850-48S2Q4C and S8050-20Q4C) and N-series (N8520-48B6C and N8520-32C), which is optimized to meet the increasing demands for higher-performance connectivity and storage traffic. With the high-capacity and flexible high-density port features, FS.COM 100G switches are an ideal solution for the next generation Metro, enterprise networks and data centers applications.

Q: How many ports does the FS.COM 100G Switches have?

A: This table below summarizes the interface combinations.

S-series 100G Switches N-series 100G Switches
Ports Name S5850-48S2Q4C S5850-2014C N8520-48B6C N8520-32C
SFP+ Ports 48 4 (combo) N N
SFP28 Ports N N 48 N
QSFP+ Ports 2 20 N N
QSFP28 Ports 4 4 6 32
Max 10GbE Ports 72 96 / /
Max 25GbE Ports N N 48 128
Max 40GbE Ports 6 24 / /
Max 50GbE Ports N N 72 /
Max 100GbE Ports 4 4 6 32

Q: What are the focus features of FS.COM 100G Switches?

A: Our S-series 100G switches are designed based on the fourthX generation high-end scalable chipset, which supports L2/L3/Data Center/Metro features. The switches come with complete system software with comprehensive protocols and applications to facilitate rapid service deployment and management for both traditional L2/L3 networks and data center networks. For example, the FS.COM S8050 series 100G switch has a capacity of 1200 million packets per second (PPS) with Layer 2 and Layer 3 forwarding at wire speed. And it provides a total bandwidth of 2.4Tb/sec for nonblocking, cut-through switching.

Series 100G open switches are embedded Broadcom chips, Intel CPU as well as ICOS o Cumulus Linux operating system, which is for next-generation metro, data center and enterprise network applications. And the N-series 100G switches support current and future data center requirements, including an x86-based control plane for easier integration of automation tools, an ONIE installer for 3rd party network operating systems and compatibility with Software Defined Networks (SDN) via OpenFlow 1.3.11. Additionally, N8500-32C supports the advanced hardware-based VXLAN feature to support over 16M virtual networks. Due to its comprehensive working performance, many famous companies like Amazon and Facebook have chosen them for their networks.

Q: What is the CPU of the FS.COM 100G switches?

A: The CPU of S-series and N-series 100G switches are different.

S-series 100G Switches N-series 100G Switches
Switch S5850-48S2Q4C S8050-20Q4C N8520-48B6C N8520-32C
CPU Freescale PowerPC P1010 Freescale PowerPC P1010 Intel Atom C2538 2.4 GHz 4-core Intel Atom C2538 2.4 GHz 4-core

A: The S-series 100G switches use FS.COM OS at present. This OS is based on the development of Linux. Hardware platform compatible with X86 architecture and PowerPC architecture, and supports Enterprise/Data Center/Metro Ethernet features, including L2/L3/ACL/QoS/Security, NVGRE/VXLAN, RPC API.

N-series 100G switches use common ONIE system and support third-party operating system, like Broadcom ICOS. Broadcom ICOS is a full-featured networking OS for data centers and includes advanced layer-2 features such as MLAG and layer-3 features such as ECMP, VRF, IPv4, IPv6, and SDN features such as VxLAN, OpenFlow, and OpEN API. Cumulus Linux enables modern data center architectures while providing a transition path for traditional data center architectures,with support for layer 2, layer 3 and overlay architectureswith functions like including MLAG, VXLAN, SFLOW, BGP and OSPF,etc. You can find more detials here: FS N-Series Cumulus Linux Switches Datasheet.

Q: Does the system is compatible with Cumulux Linux?

A: S-series 100G switches only support FS.COM OS at present. The FS OS is mature and can meet all the functions work environment that the switches support. While the N-series 100G switches are not only compatible with Cumulus Linux, but also support other operating systems such as Broadcom ICOS, OcNOS, Open Network Linux and IP Infusion OcNOS, etc.

Q: Do FS.COM 100G switches have management and diagnostic tools that can help customers troubleshoot potential problems?

A: Yes, our 100G switches support the following functions to help our customers troubleshoot potential problems:

Traffic coming into the switches can be captured on the CPU for analysis By checking the syslog, online diagnostic information Each module has a debug switch Elephant flow detection can be used to detect the mass traffic in the network Ping, especially fast ping, L2 Ping Traceroute

Q: Do FS.COM 100G switches run a 3rd party software or are the switching/routing engines of them developed in-house?

A: They are developed in-house.

Q: Whether the FS.COM 100G switches support the function of MPLS?

A: No, our 100G switches don't support the function of MPLS. But the S5800 series 10G switches support the function.

Q: Do FS.COM 100G Switches support stacking?

A: Our 100G switches don't support stacking. But they support MLAG that is relatively easy to manage. Two devices can achieve cross-device port aggregation and provide fairlure redundancy.

Q: Do FS.COM 100G switches support IEEE802.1 Audio Video Bridging standard?

A: No, Our 100G switches don't support it.

Q: What licensing model does the FS.COM 100G Switches use? And, is there a software license cost?

A: Our S-series 100G switches use a permanent license model and no additional cost for the license. The N-series 100G switches need a license fee. But if you have purchased the 1, 3, or 5-year technical support service, you needn't pay additional license fees during the period.

Q: Do FS.COM 100G switches support the Network Plug and Play (PnP) agent?

A: No, our 100Gswitches don't support PnP.

Q: If I want to use third-party transceivers, will they work with FS.COM 100G switches?

A: In principle, our 100G switches are compatible with any standard module. But we recommend using our certified modules. Our switches have no special requirements for the module, and there is no limit too.

Q: What are the limits on OSPF and BGP routing, such as the number of routes?

A: OSPF and BGP routing support Flexible Table Management, it can choose different profiles according to different application scenarios. Default support 4K ARP Entry and 8K FIB, Arp can support up to 20K under the layer3 profile.

Q: Do FS.COM 100G switches support jumbo frame for an iSCSI environment?

A: Yes, our S-series 100G switches support jumbo frame (9600 Bytes). N-series 100G switch support Jumbo Frame up to 12K.

Q: What types of security layers are offered on FS.COM 100G switches? How does FS.COM handle the problems of security and backdoor vulnerability?

A: Our 100G switches support SSH, AAA, DDoS defense. In addition, they also support Elephant Flow Detection, CPU traffic, and CPU limit, ACL, Port Security, Port Isolate, Port block, VLAN security, private VLAN, IP source guard, etc.

Q: Is it possible to use OSPF in combination with NVGRE/VXLAN for controlling of the routing of NVGRE/VXLAN packets? Is it possible to implement link failure protection with the combination of NVGRE/VXLAN and OSPF?

A: Through the test on the equipment, it's found that OSPF is used to connect VXLAN and it's available to control the routing of VXLAN packets. By setting the priority route on OSPF to ensure the redundancy of the link, when a routing is broken, OSPF can quickly switch routing to ensure to the implement link and to deliver the data without interruption.

Q: What quality-of-service (QoS) features do FS.COM 100G Switches provide to enhance traffic management?

A: Our 100G switches provide 1R2C and 2R3C Policing, including Port Policing and Flow Policing on both ingress and egress to enable more flexible QoS offerings. In addition, FS.COM 100G switches also offer scheduling and shaping, including both port shaping and queue shaping.

Q: Is the implementation of NVGRE/VXLAN on N-Series/ICOS compatible with the implementation of NVGRE/VXLAN on FS.COM-OS on S5850?

A: VXLAN is deployed on N-Series and S5850 Series, they can be successfully achieved the tunneling and implement L2 features.

Q: How to handle the connectivity problems in the test?

A: Take FS.COM S8050 series switch as an example, problem shown as below:

1) eth-0-11 (QSFP28-SR4, 100G) to eth-0-14 (QSFP28-SR4, 100G): Pass 2) eth-0-11 (QSFP28-SR4, 100G) to Ixia (QSFP28-SR4, 100G): Fail 3) eth-0-11 (QSFP28-SR4, 100G) to FortiCarrier (QSFP28-SR4, 100G): Fail 4) Ixia (QSFP28-SR4, 100G) to FortiCarrier (QSFP28-SR4, 100G): Pass

Check the device as follows:

When docking fails, firstly check the details of a module on the switch. The command is "show transceiver eth-0-11 detail".

When docking fails, set the port rate in line with the module on the device, and set the working status as the duplex, then observe whether the LED on the port is on.

When docking fails, make sure whether the switch device and the peer device turn on the FEC function.

The FEC function of the equipment on both ends should keep consistent (enable or disable), or the ports cannot be up. In addition, this command is "fec enable"/"fec disable".

Q: Are there price differences for the difference images? Enterprise base, vs enterprise advanced vs metro.

A: Our 100G switches are currently controlling feature set through the license, rather than Image. The license is bundled with the device. In other words, each switch has a license.

Q: Does it need any additional fee if the switch system needs to upgrade?

A: FS.COM OS is updated without any additional fee. If you need to upgrade. The upgrade of Cumulus Linux will need pay additional technical fee.

Q: What is the warranty for FS.COM 100G Switches?

A: Five year hardware warranty, including any quality problems during the free maintenance. If you need to renew, we will charge a basic renewl cost based on the original price each year.

If you want to know more information about FS.COM 100G switches, please visit our website or contact us directly via


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