Fec Mode Mikrotik. It is explaining on the documentation website (Device-mode - Rou

It is explaining on the documentation website (Device-mode - RouterOS - MikroTik Documentation) that brand new CCR and 1100 are going to be in "advanced mode" starting from 7. MikroTik RouterOS offers a plethora of configuration options, each with its own impact on network performance, reliability, and functionality. An interface is in down state and a prompt message is displayed Jan 13, 2023 · This appears to be a ESXi driver or firmware issue with auto-FEC mode as the Windows driver does not have this same issue. Firecode (FC), also known as BASE-R or Clause 74 FEC, is a ‘weaker’ FEC but introduces less latency on the link when used in comparison to RS-FEC. 17, but there are no further explanation for Jan 22, 2023 · FEC mode in JunOS is a feature that allows the router to detect and correct errors in the data transmission. 10 branch 25. For cabling, I tried using the official When a 100GE 1-to-4 high-speed cable is installed on a 100GE interface split into four 25GE interfaces, auto-negotiation is enabled on the 25GE converted interfaces by default, and the 25GE converted interfaces can negotiate with the remote interface to work in RS-FEC mode. Dec 19, 2022 · FG60F (root) # get vpn ipsec tunnel name vpn-to-mikrotik gateway name: 'vpn-to-mikrotik' local-gateway: 10. The Mikrotik doesn’t to see any “Link Partner Advertising” rates/speeds advertised to the SFP interface and therefore doesn’t create any link, Auto and 10 BaseCR dont work, but forcing to “1G baseT full” does show a link up time. Change from Auto to fec 74 or 91. The table below shows link modes and supported the FEC modes: Turns out that the mikrotik switch and a number of other vendors need to set the FEC-mode for the X4 nics at 100G. I run a WG instance on my MT (RB5009). The router configuration was really as bridge defined, but with a NAT configuration. I suppose disabling FEC on server side would have required a special intel toolkit for ESXi, which wasn't there just to be run. 1 Menu Specific Commands 5 Connect List 5. What's going on? How do i get to debug about it? Is it possible the HP firmware makes it incompatible with some transceivers and I need to get a mellanox-coded one? 4 days ago · Device modes are factory pre-installed to routers, if the router is manufactured and shipped with MikroTik RouterOS v7. This seems to work alright with FSK modulation Aug 7, 2022 · Hi all, I couldn’t find any discussion on how to do it, maybe I am wrong, and that should be done another way, but hear me out. To ensure a successful link with other vendor devices, you may need to enable FEC mode by configuring it to either fec74 or fec91. Apr 8, 2025 · Hi I’ve tried a few DAC cables to connect my Route 10 to a Mikrotik CRS309-1G-8S+ switch. I’ve tried with forced 100G on both ends with RS-FEC and fec91, no link. Have different ports set differently and try them: autoneg, hard coded, FEC (NRZ for 10G, NRZ or RS for 25G). 1 Properties 5. This document describes how to troubleshoot the fault that an interface is down. 1 Properties 4 Align 4. The mode is very similar to LACP except that it is not standardized and works with layer-3-and-4 hash policy. 11ac. Jan 8, 2025 · Howdy, I installed OpenWrt 24. PICOS offers FEC algorithm RS-FEC (CL91) on 100G port and FEC BASE-R (CL74) on 40G port. The default FEC mode for SFP-10/25G-CSR is FC-FEC. The /sys/cl Jul 11, 2023 · 1. 5. We would like to show you a description here but the site won’t allow us. 1:0 (static) remote-gateway: 10. Changing the connection speed from auto to a manual setting made no difference. No FEC: Disables FEC. 3 on it. For general help using display filters, please see the wireshark-filter Sep 4, 2025 · Hello everyone, After getting used to device-mode, I was searching, without success, to find an exhaustive list of modes of device-mode, depending of the (brand new) router. 0. FEC is supported only on link speeds of 10G, 16G, 32G, and 64G regardless of whether the platform is FEC-capable. I’ve tried with forced 100G on both ends with RS-FEC and fec74, no link. Note: For devices to benefit from this feature, link partners must have FEC enabled. 5G SFP port, 5x Gigabit Ethernet, PoE out, USB, and a fast dual-core CPU – ideal for homes, offices, or underfunded labs that need reliable performance. The mode can work together with static Link Aggregation Group (LAG) interfaces. Dec 16, 2001 · We have introduced the switch port FEC mode configuration and viewing methods, also mentioned that the FEC function is determined by the negotiation between the two ends of the link, specifically refer to How To Configure Switch Interface FEC Mode ; and the FEC function also has different modes to choose from, and different host brands or Jan 12, 2026 · While MikroTik cannot ensure full compatibility with modules from all manufacturers, as long as the other vendor modules and devices comply with transceiver multi-source agreement (MSA) they should be compatible with MikroTik. I have multiple interfaces (mostly VPN), but I do have two for my use - let’s call them wg0 (family and me) and wg1 (friends). I had noticed this for awhile and didn't know why I couldn't link up a unifi switch, like AGG PRO with a Mikrotik switch @ 25gbps using DACs or SFPs. 0U3 with Intel E810 one had to force the Nexus ports into RS-FEC mode to get 25G up. 1 Reset physical interface MAC address 2. but only at 1Gbps so not useful… I can see the Route 10 mac-address=X:X:X:X:X:X:X protocol-mode=rstp fast-forward=yes igmp-snooping=no auto-mac=yes ageing-time=5m priority=0x8000 max-message-age=20s forward-delay=15s Jan 12, 2026 · RouterOS uses a disabled FEC mode as the default setting for SFP28 and QSFP28 interfaces. Jan 24, 2025 · MikroTik RouterOS implements the following VPLS features: VPLS LDP signaling (RFC 4762) Cisco style static VPLS pseudowires (RFC 4447 FEC type 0x80) VPLS pseudowire fragmentation and reassembly (RFC 4623) VPLS MP-BGP based autodiscovery and signaling (RFC 4761) Cisco VPLS BGP-based auto-discovery (draft-ietf-l2vpn-signaling-08) Summary MikroTik RouterOS supports various types of Ethernet interfaces - ranging from 10Mbps to 10Gbps Ethernet over copper twisted pair, 1Gbps, 10Gbps, 25Gbps SFP/SFP+/SFP28 interfaces and 40Gbps, 100Gbps QSFP+/QSFP28 interfaces. 5 Firewall. To check the interface status, run the display interface command and focus on the current state field. Ethernet over twisted pair and SFP/SFP+ This mode balances outgoing traffic across the active ports based on the hashed protocol header information and accepts incoming traffic from any active port. It is not practical to have to boot into Windows just to bring the nics up and then warm-reboot into ESXi. The same mode should be used on both link ends, otherwise FEC mismatch could result in non-working link or even false link-ups. CL74 FC-FEC/BASE-R: Selects only BASE-R ability and request capabilities. FEC Mode Configuration In the interface configuration mode, enter "fec ?" in the interface configuration mode, a list of commands that can be executed at the FEC prompt will be displayed; the options of FEC modes are different for different models of switches, so complete and execute the commands according to the FEC mode that needs to be I'm seeing input errors on the one side, "CRC/Align errors" below the "Ethernet FEC statistics" on show int extensive, and a pretty consistent 2. 2 Usage 5. Apr 14, 2023 · To address this, a potential workaround is to configure the E810 by setting the link mode to 25G-AUI-AOC/ACC with FEC disabled, instead of using 25GBASE-SR. Jul 4, 2025 · FEC is configurable only on the front port and not on fabric ports. MikroTik - Interfaces Setup single link mode, only the first QSFP28 sub-interface needs to be configured, while the remaining three sub-interfaces should remain enabled. I heard someone mention FEC on a podcast the other day. Jun 25, 2024 · I’m configuring a QSFP28 on a CRS510, and the config is as follows: set [ find default-name=qsfp28-1-1 ] fec-mode=fec91 l2mtu=9014 mtu=9000 set [ find default-name=qsfp28-1-2 ] fec-mode=fec91 l2mtu=9014 mtu=9000 set [ find default-name=qsfp28-1-3 ] fec-mode=fec91 l2mtu=9014 mtu=9000 set [ find default-name=qsfp28-1-4 ] fec-mode=fec91 l2mtu=9014 mtu=9000 If I disable any of those four Jun 25, 2024 · I’m configuring a QSFP28 on a CRS510, and the config is as follows: set [ find default-name=qsfp28-1-1 ] fec-mode=fec91 l2mtu=9014 mtu=9000 set [ find default-name=qsfp28-1-2 ] fec-mode=fec91 l2mtu=9014 mtu=9000 set [ find default-name=qsfp28-1-3 ] fec-mode=fec91 l2mtu=9014 mtu=9000 set [ find default-name=qsfp28-1-4 ] fec-mode=fec91 l2mtu=9014 mtu=9000 If I disable any of those four Jan 12, 2026 · RouterOS uses a disabled FEC mode as the default setting for SFP28 and QSFP28 interfaces. So connecting N9K-C93360YC-FX2 with Dell PowerEdges running ESXi 7. From a 10G/25G/40G/100G capable switch it definitely works talking to 25G, 10G NICs. 10. I enabled it and haven't noticed any better or worse performance. I We would like to show you a description here but the site won’t allow us. MikroTik makes networking hardware and software, which is used in nearly all countries of the world. It is enabled by default, but in some cases, it may be necessary to disable it. Aug 26, 2021 · ใน Mikrotik จะรองรับการตั้งค่า Mode FEC ตั้งแต่ RouterOS 6. The complexities of MikroTik's wireless configuration can be a daunting task, especially when tasked with diagnosing and rectifying poor performing wireless networks. Since it's a Connect4LX there's no risk this is in Infiniband mode. To connect between a switch and an HBA at 16G or 32G or 64G, both sides must be in the same mode (port speed, and FEC on or off) for them to communicate at that rate. Certain RouterBoard devices are equipped with a combo interface that simultaneously contains two interface types (e. The link stays down and Windows reports cable unplugged. 4 Frame protection support (RTS/CTS) 2. Error 36 means: No Partner detected during force mode. MCS Parameters • High Throughput Modulation and Coding Scheme (HT-MCS) Used by 802. For 25G port, PICOS offers two different FEC algorithms on different switch platforms: Trident 3, Maverick2, Helix5 and Tomahawk 2 platform switches support RS-FEC (CL108) mode, Tomahawk+/Tomahawk platform switches support BASE-R (CL 74) mode. A Tunnel which Turns UDP Traffic into Encrypted UDP/FakeTCP/ICMP Traffic by using Raw Socket,helps you Bypass UDP FireWalls(or Unstable UDP Environment) - wangyu-/udp2raw. May 7, 2025 · I’ve disabled autoneg on both ends, forced 100G link, RS-fec Mellanox side, fec91 Mikrotik side, drivers installed, the card is visible in device manager. I saw someone else mention forcing FEC91 on the Mikrotik, although that didn't work, I did also try FEC74 and that worked! MikroTik makes networking hardware and software, which is used in nearly all countries of the world. /interface ethernet set [ find default-name=qsfp28-1-1 ] fec-mode=fec91 Dec 16, 2001 · We have introduced the switch port FEC mode configuration and viewing methods, also mentioned that the FEC function is determined by the negotiation between the two ends of the link, specifically refer to How to Configure Switch Interface F The default admin mode is auto on all transceiver modules, but on the QSFP-100G-LR4 transceiver module by default, the admin mode is auto and the operational state of FEC is OFF. 1 Overview 2 General interface properties 2. For more information on FEC mode options, refer to the property description. They were talking about SDWAN (any vendor) and how FEC even on a single ISP link could improve connection quality. This is a reference. This table lists the ports of switches that do not support AUTO-FEC and IEEE-RS-FEC. /interface ethernet set [ find default-name=qsfp28-1-1 ] fec-mode=fec91 Sep 2, 2024 · MikroTik CRS504-4XQ-IN, the Cloud Switch can handle FOUR QSFP28 100Gbps ports, equal to 16 x 25Gbps bandwidth. Tipe SFP dibagi menjadi beberapa jenis, bergantung pada jarak kabel optik yang digunakan, serta tipe kabel optik tersebut (single mode atau multimode). g. Jun 23, 2023 · I am trying to establish a 25 GbE link between Mikrotik CCR2004-1G-12S+2XS router and a server running Windows Server 2022 with Mellanox NIC (MCX512A-ADAT). The CCR2004 crashes immediately after plugging in the SFP28 connector, and the only way to recover is by rebooting the host computer. 47 เป็นต้นมา และมีค่า default เอาไว้ที่ fec91 สำหรับ sfp28 (25Gbps) และสำหรับ qsfp (40Gbps) จะมีค่า default เป็น disable Jun 1, 2023 · Please consider implementing a tunnel type that includes adjustable FEC that is independant of interface. Aug 15, 2022 · I would find a combo of switches for handle RJ45 and fibers at high speeds. 5% packet loss on the traffic. 11n wireless chipsets represent power per chain and the 802. 6. 2. Our mission is to make existing Internet technologies faster, more powerful and affordable to wider range of users. So I decided to use this specific MikroTik Router and to keep everything as before I want just a Bridge. Sep 12, 2022 · loop-protect-disable-time=5m auto-negotiation=yes advertise=“” full-duplex=yes tx-flow-control=off rx-flow-control=off speed=40Gbps bandwidth=unlimited/unlimited switch=switch1 fec-mode=auto How do I print just the details for qsfpplus1-1? And … How do I print the make/model of the transceiver which the switch sees inserted into qsfpplus1-1? Feb 13, 2023 · Hi all, someone experienced a problem with Mikrotik device with 25Gbp ports ? I have a problem on a double link between a Mikrotik CCR2004-1G-12S+2XS and a FS switch S5860-20SQ using two dac Sfp28 from Solid Optics. A gearbox inside the QSFP end of the cable implements the 2x 50G PAM-4 to 4x 25G NRZ conversion. RouterOS uses a disabled FEC mode as the default setting for SFP28 and QSFP28 interfaces. I’m facing a recurring issue when connecting a Dell N3324T switch to the CCR2004-1G-2XS-PCIe using a breakout cable. Jul 11, 2023 · FEC function is applicable to 25G, 100G and other high speed rate optical module communication, so how to configure the interface FEC mode of the switch? The following is an example to show you how to configure the FEC mode of the switch interface by using Moduletek limited SFP-10/25G-CSR optical module to access CISCO C9300 switch. Mar 14, 2023 · The only possible way to connect was to change the FEC mode from ‘auto’ to ‘fec91’. • Modulation Scheme Defines the phase and amplitude required for bit computing, from BPSK to QPSK to 16-QAM, 64-QAM, and 256 Feb 13, 2015 · Mikrotik sudah memiliki port SFP di beberapa series Routerboardnya, seperti pada Cloud Core Router Series, Cloud Router Switch Series, RB 2011UiAS-2HND, dll. The following symptoms are possible indications of this problem: An interface is in error-down state. Just to explain, I had before another provider and changed him. This effectively instructs the E810 to establish a link as if an AOC is connected rather than an SR module. Nov 16, 2024 · Hi everyone, I’m reaching out to see if anyone has successfully used a 100G-to-4x25G breakout cable with the MikroTik CCR2004-1G-2XS-PCIe. 2 802. There was also two bridges a WAN with the I also experimented with RAW mode where sender was just spitting out UDP packets with no AP association (sending RAW wlan frames from custom program running on OpenWRT) and having multiple receivers running in wlan monitor mode, waiting for the data and forwarding it to the server for reassembly and FEC processing. Play around with FEC mode. SFP-10/25G-CSR does not support the Base-R FEC configuration mode in ACI/NXOS. 2 examples of what I’d like to have in mikrotik. After Basic Configurations and after established your link you should force your router to use dual Stream MCS to double our throughput if you are using dual polarity Antenna first change the data rate mode to manual. 001. Represented by an integer in the range of 0-76. One is the commercial product speedfusion from peplink. To disable FEC mode in JunOS, you will need to access the command-line interface (CLI) of the router. 03. Jan 27, 2017 · Part Number: CC1310 Other Parts Discussed in Thread: CC1101 , CC1200 Hi all, Having trouble with FEC (fecmode = 0x8). 3 Basic and MCS Rate table 2. Basically considers high jitter the same as loss and We would like to show you a description here but the site won’t allow us. They let you drill down to the exact traffic you want to see and are the basis of many of Wireshark's other features, such as the coloring rules. Set up Link Aggregation on MikroTik Switch: Get a step-by-step guide to apply 802. Feb 24, 2023 · Describe the bug I have a Mikrotik RB951u1-2nd router and installed OpenWRT 22. I was in a similar situation and ended buying several DAC cables and SFPs to connect to an intel e810 quad sfp28 from a crs518 only to change the FEC mode and they all worked. I found Mikrotik have good products like : - CRS312-4C+8XG-RM for RJ45 MikroTik - CRS504-4XQ-IN for 100G MikroTik But theses would be ideal if: - CRS312-4C+8XG-RM had a 100G port for uplink instead of 4x SFP+ - CRS504-4XQ-IN had 8x 100 G instead of 4x This mode balances outgoing traffic across the active ports based on the hashed protocol header information and accepts incoming traffic from any active port. Tried every combinations mixing autonegotiation, duplex, fec, sfp-rate but there is no way to get the links running at 25Gps. 0-rc5 r28304-6dacba30a7 / LuCI openwrt-24. I went and looked at my Fortigate and noticed FEC is an option for my WAN interface within the CLI. Reed-Solomon (RS) is a ‘stronger’ FEC and is most prevalent. 1 Restrict station connections Sep 5, 2025 · Hi, I have a configuration with a MikroTik CCR2004-1G-12S+2XS and a Sophos XG135 SFOS 19. In addition use ethtool to make changes like enable/disable autoneg, set speed, FEC from the OS. Represented by an integer in the range of 0-9. A compact, affordable wired router featuring a 2. 1 Nv2 Troubleshooting 3 Access List 3. The WAN port's led link acivity led always on, no matter if cable plugged into the WAN or not. 48925~f5c1806 on my MikroTik RB5009 and everything works great save my SFP+ port. solve mikrotik problem couldn't change interface wlan1 interface managed by capsmanMikrotik Router disable Wireless Manage by CAPsMANCapsman do not enable wi Display Filter Reference Wireshark's most powerful feature is its vast array of display filters (over 328000 fields in 3000 protocols as of version 4. As my ISP just turned on dual-stack, I MikroTik makes networking hardware and software, which is used in nearly all countries of the world. Turns out that the mikrotik switch and a number of other vendors need to set the FEC-mode for the X4 nics at 100G. Did not work. 3ad and create a bonded ethernet link. Mikrotiks and the Mellanox card are on the latest FW. The only way i get the link up was configuring the We would like to show you a description here but the site won’t allow us. Advanced (previously called enterprise) mode is assigned to CCR and 1100 series devices, home mode is assigned to home routers and basic mode to any other type of device. An interface may go down in many situations. FEC masks are the same. 17 or later. Each interface has its IP addresses (both IPv4 and IPv6). It includes fec options that essentially eliminate random small packet loss and has timings that correct for high jitter as well. Any ideas would be appreciated. 5 Nv2 2. Sep 28, 2020 · In links using copper twinax cables or direct detect optics, there are 2 types of FEC in use, Reed-Solomon and Firecode. Dec 16, 2001 · 我们前面有介绍过交换机端口FEC模式配置与查看的方法，也有提到FEC功能由链路两端协商决定，具体参考 《如何配置交换机接口FEC模式》 ；而FEC功能也有不同的模式选择，且不同主机 May 8, 2025 · I’ve tried with autoneg on and fec on auto. 3). 11ac 2. 2:0 (static) dpd-link: on mode: ike-v2 interface: 'wan2' (6) rx packets: 0 bytes: 0 errors: 0 tx packets: 0 bytes: 0 errors: 0 dpd: on-demand/negotiated idle: 20000ms retry: 3 count: 0 selectors name How to deal with problems using various support options for MikroTik products and how to contact Support Specialists. Jan 22, 2023 · FEC mode in JunOS is a feature that allows the router to detect and correct errors in the data transmission. Nothing in dmesg. Brocade switches. 11n. Auto FEC: Sets the FEC Mode based on the capabilities of the attached cable. This blog post aims to demystify these settings, providing a detailed overview of the The fec-mode setting also plays important role for establishing a working link between SFP28, QSFP+ and QSFP28 interfaces. CL108 RS-FEC: Selects only RS-FEC ability and request capabilities. Nov 6, 2025 · RouterOS uses a disabled fec-mode as the default setting, but it can be changed to fec74 (also known as FC-FEC) or fec91 (also known as RS-FEC). • Very High Throughput Modulation and Coding Scheme (VHT-MCS) Used by 802. Aug 25, 2018 · I also experimented with RAW mode where sender was just spitting out UDP packets with no AP association (sending RAW wlan frames from custom program running on OpenWRT) and having multiple receivers running in wlan monitor mode, waiting for the data and forwarding it to the server for reassembly and FEC processing. The Arista 400G QSFP-DD to 4x QSFP100 active copper cables allow a 400G OSFP port (with 8x 50G PAM-4 electrical lanes) to connect to 4x QSFP100 ports (with 4x 25G NRZ electrical lanes per QSFP).

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