Thanks for your question. Firstly, please check whether the module and the cable are normal, if not, we recommend you to replace a new one. Then restart the switches, and the devices will restack automatically. Before restarting, please remember to save the current configuration. By FS on 2019年6月12日

After the S3900 switch is successfully stacked and you check the port status through the commands, the two stacking ports of the device will disappear which is a normal situation. It is mainly to prevent misoperation. Please don't worry. By FS on 2020年6月19日

The time of calendar set is not saved in the configuration file so it will not continue counting after the device is turned off. It is recommended to use the ntp service to synchronize the system time, so that after the switch restarts, you only need to set the next restart time, and don‘t need to set the system time again. By FS on 2020年6月18日

If the master is down, it will re-elect, the election process is the same as the first stack. If it is a slave downtime, there will be no impact. By FS on 2020年6月16日

Yes, after the S3900 switches are stacked, they are logically one device and can implement LACP with other devices. By FS on 2020年6月15日

The S3900 series switches only support a maximum of 2 firmwares. Please use the command dir to check whether there are currently two firmwares. If so, you need to delete one and add the new one. If there is only one, please check whether the firmware is damaged. It is recommended to download and install again. By FS on 2020年6月12日

Yes, but there are some requirements for the size of the certificate, the maximum is 5KB and the key is 2KB. By FS on 2020年6月11日

The S3900 series are the access layer switches, which have certain restrictions on the hardware, so the maximum entry for QinQ is 24 per port. By FS on 2020年6月10日

Hello, i see you need a solution for your network; our tech and salers can help you design your whole network solution with best quality and price. And we recommend the S3900-24T4S for you to connect to the server. The function of the core switch is more abundant than that of the access layer switch. So as for the core switch, we recommend S5800-8TF12S for the core switch. By FS on 2020年6月9日

The S3900 series switches don't support no vlan tags or add double vlan tags yet, but the S58 series switches support these. For more information, please feel free to contact sales@fs.com. By FS on 2020年6月9日

After the switch is configured with sflow function, the configuration file will not display the sflow configuration. When you check the Sflow configuration command, it will show sFlow. By FS on 2020年6月8日

In order to make IGMP snooping effective on the S3900 series switches, you need to use the command: ip igmp snooping querier to make the switch actively send down Query. By FS on 2020年6月6日

It may be caused by the inconsistent MTU value configured on the interface. You could try to enable the Jumbo frame. Refer to the following command to open: S3900(config)#jumbo frameS3900(config)#interface ethernet X/X S3900(config-if)#switchport mtu 9216 By FS on 2020年6月4日

Yes, the 100M transceiver modules are supported on the Gigabit ports of S3900 series switches, but the version needs to be upgraded to V1.6.9 or higher (including V1.6.9). By FS on 2020年6月3日

No, there was not GPL code for S3900-24T4S switch which does not support automated tools and does not have programming capabilities. By FS on 2020年6月2日

Hello, S3900 series switches don‘t support web interface to change the management port IP. We would recommend the S58 series switches, which could support this function. By FS on 2020年6月1日

The command example is as follows: Run the following commands in sequence: Switch(config)#ip igmp snooping Switch(config)#ip igmp snooping vlan 1 Switch(config)#ip igmp snooping querier By FS on 2020年5月28日

Hello,we just sell full-new products, not any old or used. Our cheapest switch with 10G port is S3900-24T4S. For more information, please feel free to contact sales@fs.com. By FS on 2020年5月25日

Yes, the S3900-24T4S switch has Trunk function and it also supports Dot1Q in the trunk mode. For more information, please feel free to contact sales@fs.com. By FS on -0001年11月30日

Yes, the S3900-24T4S switch supports dot1q encapsulation in trunk and trunk modes. For more information, please feel free to contact sales@fs.com. By FS on 2020年5月22日

The S3900 switch uses the last two 10G ports as stack ports, and the connection method is cross-connect (daisy chain). By FS on 2020年5月20日

It is not recommended to use different models of S3900 series for stacking because there is a problem with data forwarding. The model and software version of the two switches to be stacked must be consistent. By FS on 2020年5月19日

Hello, the IP address of the management port cannot be modified through the web currently, but can be modified through CLI commands. By FS on 2020年5月14日

The S3900 series switches currently support 10G ports to view DDM information. By FS on 2020年5月8日

According to the your scenario description, S3900-24T4S and S3900-48T4S are recommended to meet the your application needs, and our switches are configurable management, you can also complete the basic configuration according to the network environment, to achieve equipment unmanage. By FS on 2020年5月4日

S3900 series switches, S5900-24S4T2Q switch, S5500-48T8SP switch support stacking. But FS equipment can be stacked only in the same model and version. By FS on 2020年5月2日

Yes, the LACP can be achieved with a client for redundancy purpose after two S3900-24T4S switches are stacked. The specific operations of LACP can be referred on page 6 of the S3900 Series Configuration Guide and the stacking can be referred on page 134. By FS on 2020年4月30日

Hello, the SFP+ interface of the S3900 can not only be connected to upstream devices, but also be connected to computers and other devices. By FS on 2020年4月23日

Hello, S3900-24T4S can create up to 26 groups of LACP, and the maximum number of ports in each group is 8. By FS on 2020年4月16日

Yes, you can. This could work, and you can refer on page 24 and 25 of the S3900 Series Switches Configuration Guide . By FS on 2020年4月13日

According to your description, we recommend the S3900-24T4S with 24 10/100/1000BASE-T RJ45 ports, and 4 10G SFP+ ports (Uplinks). For detailed parameters, please refer to the S3900 Series Switches Datasheet . By FS on 2020年4月10日

Yes, the normal aging time of mac-address-table is 300s. But if you set static device to "0", the mac-address-table won't get aged. By FS on 2020年4月7日

Yes, the S3900-24T4S switch can meet your need well. When the switch implements the above configuration, DHCP information can be filtered out. At this point, no matter what IP address DHCP obtains, as long as the traffics are obtained through DHCP, they will be completely filtered out. The specific configuration guide can be referred on page 137 of the S3900 Series Switches CLI Reference Guide . By FS on 2020年3月18日

Hello, you could download the Microsoft Office and choose the VisioPro on the “Main Window” of the Office, then you could open this visio stencils. For more information, welcome to contact sales@fs.com By FS on 2020年2月20日

Yes, S3900 series and S5800 series switches are compatible with your HP Procurve switches because LACP is a public standard protocal and our devices support it. The max aggregated links of S3900 series is 8 and S5800 series is 16. By FS on 2020年2月18日

Yes, S3900-24T4S supports QinQ and vlan translation. And all #S39 and S58 series switches support both QinQ and vlan translation. By FS on 2020年2月12日

Yes, our S3900-24T4S switch could support the creation of up to 4096 vlans, which could meet your need for forwarding multiple vlans to another device connected to an SFP port. By FS on 2020年1月31日

Our S3900-24T4S switch does not support slowing down the 10G SFP+ port to 2.5G. For any further questions, just feel free to contact sales@fs.com. By FS on 2020年1月31日

Yes, you can. But it should be noted that only the last two 10G ports of the S3900-24T4S switch can be used for stacking. And you can use the other two 10G ports to connect the server and nas. By FS on 2019年11月27日

Hello, S3900 series switches support port-based isolation. The detailed configuration guide, please kindly check the page 415 of the S3900 Series CLI Reference Guide. By FS on 2019年11月16日

Hello, the S3400-24T4FP switch can not be stacked with the S3900 series switches. First, the S3400-24T4FP doesn't support stacking. Second, it should be noted that the model and software version of the two switches to be stacked must be same. By FS on 2019年10月20日

The S3900-24T4S switch is not available with DC power supplies. It is equipped with 2 built-in AC power supplies by default. If you need the switches with DC power, FS S58 series switches (except the S5850-48T4Q) can provide the DC power modules. By FS on 2019年10月3日

The S3900-24T4S switch supports Trunk and Dot1Q. You can get the detailed configuration guide in the Web Management Manual and CLI Reference Guide. By FS on 2019年9月23日

Thanks for your question. The S3900-24T4S switch can be used to connect computers and 10G network card (Mellanox) together by using SFP+ ports to transfer files. It can be used as a 4-port 10G switch for your home. We recommend the module #11552 to connect the terminal or connect the switch. By FS on 2019年7月22日

Thanks for your question. The S3900-24T4S switch can support CLI and web management, but it doesn't allow access to the Linux command line. Only our N-Series Switches can support Linux (ONIE). By FS on 2019年7月9日

Thanks for your question. The S3900-24T4S switch's SFP+ ports can be compatible with 10GBASE-T modules, such as FS P/N: SFP-10G-T. We recommend #66613. By FS on 2019年5月10日

Hello, the S3900-24T4S switch can work with the Cisco compatible C60 10G DWDM SFP+ transceiver modules. We recommend 45564. Thanks! By FS on 2019年4月24日

Hello, S3900 series switches support port-based isolation. The detailed configuration guide, please kindly check the page 415 of the S3900 Series CLI Reference Guide. By FS on 2019年4月8日

Hello, the default IP adderess is 192.168.1.1. The login information is--username: admin, password: admin. More detailed configuration guide, please check the web and CLI manual in the “Download” section of the product page. Thanks! By FS on 2019年4月5日

Yes, the #72944 S3900-24T4S can be compatible with SFP-GE-L transceiver modules. By FS on 2019年3月14日

Yes, S3900-24T4S is the smallest switch with 10G SFP uplink, and 24 10/100/1000BASE-T ports which can meet the demand as you required. So we recommend the S3900-24T4S for you. Thanks! By FS on 2019年3月4日

Glad to know that you are interested in the S3900-24T4s Switch#72944. The S3900-24T4S does not have a POE version. POE requires hardware support. You can try POE switch#73459, the four optical ports of it is 1G SFP. Hope your attention. By FS on 2019年1月31日

Dear customer, a S3900-24T4S switch can only be stacked with other S3900-24T4S switches. It can not be stacked with other brands or other models. Thanks! By FS on 2019年1月23日

Hi, you can do most of basic configuration through Webui including bandwidth limiting, port settings, vlan settings and etc. By FS on 2019年1月21日

When this switch running SNMP, if the PSU fail, you will receive the Alarm information to be noticed for it. By FS on 2019年1月21日

Thank you for your question. Yes, our S3900-24T4S switch can support LACP and MSTP. By FS on 2019年1月11日

Thanks for your questions. Kindly noted that this switch does not support the POE, you can look through the 24 port POE switch from this item #73459. By FS on 2018年12月4日

For the MDI/MDIX function, it is auto negotiating the RJ45 network cables. No matter crossover or straight through network cables you use, they all can be recognized. It is a basic function of switch. Our every port can support MDI/MDI-X, and the rate is 1000Mbps. You just need to use the normal network cables, then the port can work well. By FS on 2018年11月28日

Yes, 10G SFP Ports are not only available for normal use, but also can support 6pcs switches in stacking mode at the same time. Thanks! By FS on 2018年11月15日

Yes, it is suitable to use with SFP1G-SX-31 transceiver. Pls rest assured. By FS on 2018年11月14日

Thanks for your inquiry, this switch can configure via console and the operation procedure is similar to Cisco, and the firmware update will informed through on FS website. By FS on 2018年10月4日

Hello, your Account Manager will send the relevant documents to you by email. Thanks By FS on 2018年9月25日

The S3900-24T4S can support stacking. There are 10G fiber port on switch, the stacking cables are 10G DAC. Thanks! By FS on 2018年9月21日

It is supported. S3900-24T4S supports DHCP client, but does not support use as a DHCP server. By FS on 2020年8月7日

Hello, if you need to use other functions, you need to configure it. If you are only involved in simple use, there is no problem if you only need to connect the corresponding cable, that is, you can use it after powering on. By FS on 2020年7月31日

Bonjour, merci de votre question, il n'y a pas de switch PoE de 24 ports sur notre site web maintenant. Votre responsable va vous contacter pour vous recommander un switch convenable. By FS on 2020年6月30日

Yes, we would recommend the # 66612 SFP-10G-T for you, which is compatible with the S3900-24T4S switch. You could also refer to the “Matching Products” section on the product details page or the S3900 Series Switches Transceiver Modules Guide , which recommends various kinds of transceiver modules and cables that could be used together this switch. By FS on 2020年2月28日

The S3900-24T4S switch could not support the feature that LACP works across the stack. We would recommend you the # 85069 S5850-24T16S switch, which supports MLAG and could meet your need well. By FS on 2020年2月10日

Oui, quand vous avez besoin du stack du S3900-24T4S, vous pouvez combiner les 4x10G SFP+, puis utiliser les ports 27 et 28 pour le stack et relier les ports 25 et 26 au serveurs et pc. Quand vous n'avez pas besoin de stack, tous les 4 ports 10G SFP+ peuvent être reliés aux switchs, routeurs, serveurs, pc et d'autres équipements. By FS on 2019年12月6日

Yes, for the S3900-24T4S, you can combine the 4x10G SFP+ to use 2 ports for stacking and 2 ports to connect with servers and nas. When the stack is not needed, all four ports can connect with switches, routers, servers, and other devices. By FS on 2019年11月27日

Bonjour, voici les commandes pour changer l' adresse IP par défaut: S3900 #configure terminal S3900(config)#interface Craft S3900(config-if)#ip add 192.168.1.1/24 S3900(config-if)##exit Vous pouvez aussi voir la page 27 du document S3900 Series CLI Reference Guide sur notre site web. By FS on 2019年10月24日

Thanks for your question. You can configure the “summer-time” using the web interface first, and we will update the “summer-time” CLI reference documentation as soon as possible. You account manager will email the documentation to you. By FS on 2019年9月10日

Bonjour, merci de votre question.Vous pouvez configurer les ports du switch connectant àserveur NAS et à Firewall en tant que port d'accès. Votre responsable de compte va vous contacter pour vous donner plus d'infos. By FS on 2019年8月24日

Thanks for your question. S3900-24T4S switch doesn't support Private Vlan. We recommend S-Series Switches. By FS on 2019年8月1日

Thanks for your question. Yes, the S3900-24T4S switch is shipped with rack mount kit, including a grounding cable, a couple of rack mount brackets, two power cords, six screws and four rubber pads. By FS on 2019年6月25日

Hello, You can get the MIB file in the “Download” section of the product page. By FS on 2019年3月29日

Bonjour, merci de votre question. 1. ce switch supporter LACP, 8 membres au maximum par chaque ports channels, et il supporte aussi des switch de même ou de différents modèles pour le LACP. 2. ce switch supporte 802.1x, concernant l’authentification, veuillez voir p145 de ce document https://www.feisu.com/file/user_manual/s3900-series-switches-cli-reference-guide.pdf Bien cordialement By FS on 2019年2月13日

Bonjour, merci de votre question. Votre représentante commerciale va vous envoyer les documents de configurations, n’oubliez pas de vérifier la boîte aux lettres, cordialement. By FS on 2019年1月28日

Regarding to #72944 (S3900-24T4S), confirmed that it is the Layer 2 switches that only supports static routing. If the dynamic routing protocol is what you want, our S58 series switches will be suitable, because they can support OSPF, RIP various dynamic routing protocols. Below switch is listed for your reference. S5850-48T4Q 48-Port 10GBase-T L2/L3 Data Center ToR/Leaf Switch with 4 40G QSFP+ Uplinks#69378 By FS on 2019年1月17日

Bonjour, votre représentant de ventes vous contactera pour vous offrir les instructions de mise à jour. Merci de votre question. By FS on 2019年1月7日

Thank you for your question. Theoretically, other brand SFP can also work on this switch. We recommend FS SFP Transceivers. By FS on 2019年1月2日

Thank you for your question. The S3900-24T4S switch doesn't support POE, you can kindly click this link to find more PoE+ Switches. By FS on 2018年11月30日

1. Nuestro switch S3900-24T4S # 72944 se puede usar con tarjetas Nic HP NC522SFP. 2. Necesitamos confirmar sus necesidades de transmisión específicas para recomendar los transceptores. By FS on 2018年11月22日

der S3900-24T4S und der S3900-24F4S können nicht zusammen gestapelt werden. Der S3900-24T4S kann nur den S3900-24T4S gestapelt werden. Mit freundlichen Grüßen By FS on 2018年11月21日

Hi, thanks for your question, and you can use the DAC cables to connect our switch to servers. Please kindly check the 10G DAC cables #30849 for your reference. Thanks. By FS on 2018年10月27日