Mikrotik cpu flow control So that way you measure the CPU performance, not the switch chip performance. Added simple PPTP service, and masquerade rule for PPTP, without this rule, PPTP clients from big routed network can't reach hosts in subnets behind RB4011 (found the rule on forum). net". One trunk with two vlans (vlan10 and vlan475) connects to the MikroTik; VLAN filtering is enabled. 5 stable prior to being deployed. tx-flow-control (on | off | auto; Default: off) Hey Vlan experts, I am trying to modify the Router-Switch-AP (all in one) scenario to suit my purposes, which is sending ether4 (Green VLAN) out to a dumb ppoe switch to feed three HP WAP's. 0/24 is routed to 192. so we knew it was not a problem on the ont or onu right. For the servers with flow-control disabled, I used ethtool -A eth0 rx on tx on, to enable flow control. Good Day I have upgraded an HAP Lite AP to 6. These statistics can also be used to monitor CPU Flow Control. Removed NAT masquerade rule for ether1, no Internet connection. The feature is supported on AR724x, AR9xxx, and QCA9xxx CPU ports, all CCR ports, and all Atheros switch chip ports. You are using the DNS of a device most likely a modem: 192. . RouterOS. I tried this without any positive results. Disabling cpu flow control seems like the only way for me to address the problem. If hosts are in the same broadcast domain, connected to router bridge ports or via L2 switch, ping work as expected. When I connect to the internal (wlan2) GREEN AP it works fine. Unanswered topics Line 458: add action=dst-nat chain=dstnat comment="Wireguard hairpin nat" !connection-bytes !connection-limit !connection-mark !connection-rate !connection-type !content disabled=no !dscp !dst-address dst-address-list=WANs !dst-address-type !dst-limit dst-port=51820 !fragment ! hotspot \ Line 460: !packet-size !per-connection-classifier !port !priority MikroTik. Next- I went to the servers, and used ethtool -a eth0 to list the current flow control status. wiki code [] such a port is required for management traffic and for routing features. often it could be as simple as a half-duplex link, or outdated firmware in a networked RB3011UiAS speed issue, When testing speeds to the ISP the results come in as 465Mb Down stable and the upload first hits 200Mb but then fast drop to 80Mb Hello Cat! Thanks for your post! I'm pretty sure it's a widespread issue. T-mobile can enforce that you use their DNS. But we can only connect form the Mikrotik device to the Machine-Net Hosts, not form the connected Wireguard-VPN client. This should have upstream switches stop before/when buffers are full. This is the last mile of a QinQ channel (service tag 405). 1 Due to hardware limitations, some switch chip models may break traffic flow while accessing QoS port/queue usage data. After I've watched tons of videos and read tons of forums and blogs, and after I tried more of less everything, I'm still facing serious issue with DNS redirects from LAN clients. Flow control should only be needed if you are running at near 100% link capacity. Now I wanted to switch to newer accesspoints and bought 2 cAPGi-5HaxD2HaxD Some switch chips are capable of reporting statistics, this can be useful to monitor how many packets are sent to the CPU from the built-in switch chip. However, when I connect the switch to ether4 the WAP's don't receive IP addresses or internet. 1,fd00:976a::9,fd00:976a::10. I'm looking for suggestions to what may be causing the upload to fail. It is lit by default when the board starts up, then it is turned off when the bootloader runs kernel. 5. disabling ether1 interface) the RB3011 shows similar performance over WAN2. There is no user input possible there. 3 and re-enabled cpu flow control. 42 it is possible to enable traffic storm control. RouterOS general discussion. 200. auto is the same as on except when auto-negotiation=yes flow control status is resolved by taking into account what other end advertises. Flow control on mikrotik: - I have to enabled RX flow control for the port that connecting between Router & TPLink Switch. 45. Working implementation of flow control should help a lot, but MT default seems to be "off" (check /interface/ethernet, settings rx-flow-control and tx-flow-control are per port), but it should be enabled on both link partners and in particular on the faster Another day, another DNS-over-Hell with MT! This time in ROS7. 17beta4 firmware. RB3011UiAS speed issue, When testing speeds to the ISP the results come in as 465Mb Down stable and the upload first hits 200Mb but then fast drop to 80Mb Not sure what you are asking? a. Here is what I've done so far: Netinsall 6. When I connect my Notebook with the Modem, give it a VLAN7 and bring up the dialup I get a speed of 260 by 100 Mbit/s on "speedtest. Hi, Many thanks for your lucid instructions. The results are always the same. RB3011UiAS speed issue, When testing speeds to the ISP the results come in as 465Mb Down stable and the upload first hits 200Mb but then fast drop to 80Mb RB3011UiAS speed issue, When testing speeds to the ISP the results come in as 465Mb Down stable and the upload first hits 200Mb but then fast drop to 80Mb ISP Sold speed 500/500 actual speed is 465/465. RB3011UiAS speed issue, When testing speeds to the ISP the results come in as 465Mb Down stable and the upload first hits 200Mb but then fast drop to 80Mb Regarding default config and FW rules, only thing changed is: 1. I've tried different firmware versions, resetting the device, different configuration methods, manual frequency Greetings, dear community! I have a C53UiG+5HPaxD2HPaxD device, currently on 7. these IPv6 DNS servers seems indeed to be used by t-mobile. Register; Login I was able to get this working with an old SOHO Netgear router just by turning off isolation on the wireless AP, so I'm reasonably confident the issue is how I have the Mikrotik router configured. Good first post ! Can you also share the settings on the notebook where the wireguard client is running ? (remove WAN IP where you connect to and Private/Public keys, just note they are there). Register Hey there! I've got huge issues with RB2011 and Huawei E3372h-153. 2/32 - I stated to remove keep alive on router, it is not needed on the server for wg handshake - remove the endpoint address entry of 0. MikroTik. 5G. I however am making a mistake somewhere. Hello all, Did anything change lately regarding wireguard in latest OS? I did an upgrade and it seems I can't come from the outside anymore to connect to the wireguard. All switch chips have a special port that is called switchX-cpu, this is the CPU port for a switch chip, it is meant to forward traffic from a switch chip to the Oct 2, 2024 · By default the switch chip ensures that this special CPU port is not congested and sends out Pause Frames when link capacity is exceeded to make sure the port is not oversaturated, this feature is called CPU Flow Control. Not sure what you are asking? a. We have two LHG60. 3 series works well for me with the cpu-flow-control on the switch. 0. So I'm fairly certain I'm missing something fundamental here, like fully understanding the concept of bridges. One question I've always had pertains to isolation of the VLANs from each other and from the main 2. 4Gbps speeds. Is that not putting too much strain on the cpu of an OmniTik? ONT and ONU+WIFI6 router. Hi Normis, I think this is a misunderstanding. RouterOS was updated to 7. Two VLANs are CPU usage spikes to 50% during outbound traffic; profiling shows high usage advertise=40G-baseSR4-LR4,40G-baseCR4 \ comment="*** trunk 40GbE * vlan475 ***" loop-protect=off \ rx-flow-control=on tx-flow-control cpu-flow-control l3-hw-offloading mirror-target name qos-hw-offloading rspan rspan-egress-vlan-id rspan-ingress-vlan-id switch-all-ports . Dec 19, 2024 · CPU Flow Control. 168. Unanswered topics; Active topics; Search; Quick links. so further testing. WAN2 (secondary) over PPPoE is mostly idle I just have it for failover. It would be very complicated to represent what is going on with the packet in one diagram, therefore a Oct 31, 2022 · i'm experiencing issue using flow control when there is a speed change from 10G link to 2. I've tried different firmware versions, resetting the device, different configuration methods, manual frequency Hey Vlan experts, I am trying to modify the Router-Switch-AP (all in one) scenario to suit my purposes, which is sending ether4 (Green VLAN) out to a dumb ppoe switch to feed three HP WAP's. I'm looking for suggestions to what may be causing the upload to Hey Vlan experts, I am trying to modify the Router-Switch-AP (all in one) scenario to suit my purposes, which is sending ether4 (Green VLAN) out to a dumb ppoe switch to feed three HP WAP's. 0/24. Regarding default config and FW rules, only thing changed is: 1. A sending station (computer or network switch) may be transmitting data faster than the other end of the link can accept it. Unsure where to go at this point. Something to note is that I had a lot of problems with my CRS328 switch in RouterOS, Mikrotik has confirmed tx-flow-control does not work correctly in RouterOS. Without this feature packets that might be crucial for routing or management purposes might get dropped. Feature is supported on AR724x, AR9xxx, QCA9xxx CPU ports, all CCR ports and all Atheros switch chip ports. Since RouterOS v6. Certain switch configurations can alter the packet flow; switch-cpu port - a special purpose switch port for communication between the main CPU and other switch ports. I have my config below. I switched to SwOS and also tried other 10G/1G switches with flow control and I have zero issues now. 2 The device gathers max queue fill statistics instead of displaying the current usage values. I'm getting capped @ 21Mbps DL & 11Mbps UL no matter what. Hulu, Youtube, etc)? Hi zlobster, I have exactly the same problem. See the below verbose export. Normally the tunnel works but occasionally even after reboots I get unreachable gateway for the static route. Hello, I am new to the mikrotiks and i am currently trying to set 2 hex s up in a test environment I have no wan setup and want to use these has layer 3 switches The Wireguard-VPN Tunnel is working, we can connect to the Mikrotik device in the center. The interface list all is a good example, as it always automatically Is that not putting too much strain on the cpu of an OmniTik? ONT and ONU+WIFI6 router. just joined. RB3011UiAS speed issue, When testing speeds to the ISP the results come in as 465Mb Down stable and the upload first hits 200Mb but then fast drop to 80Mb Hello Cat! Thanks for your post! I'm pretty sure it's a widespread issue. Edit: I've been unable to reproduce the flapping issue on my RB3011 after updating to RouterOS 7. g. b. If t-mobile is blocking DNS request made to other DNS servers than you could experience what you describe. Usage: This RB3011UiAS is setup as a gateway between the ISP and the Core Router The CPU is more than fast enough to handle this at 1-2. My point is that t-mobile can control what you can visit (resolved) or not, like the EU/Dutch government is doing in the Netherlands forcing ISP's to filter their DNS. By the way: the problem is back using routerOS 7. 1. I've also tested with hAP ac, RB951 and a few others. I'm aware about Win FW icmp blocking by default, that was the first thing I've checked, and allowed icmp on all PCs (hosts) used for testing. FCS (Frame Check Sequence) tells you that you are getting CRC errors on the link. often it could be as Aug 2, 2024 · 从RouterOS v6. 100. cpu-flow-control l3-hw-offloading mirror-target name qos-hw-offloading rspan rspan-egress-vlan-id rspan-ingress-vlan-id switch-all-ports . Community discussions. I created the VETH interface for it at 192. 5Gbps I guess? Would be great if Mikrotik would respond to support requests on the issue but that doesn't seem to be happening. I have VLANs and L3 interfaces on my SFP+ port and it's still in hardware and able to route full speed. HIGH CPU 100 - CRS354-48P-4S+2Q. Mikrotik hap ac3 : as router; The really strange situation is: advertise=10M-half,10M-full,100M-half,100M-full,1000M-half,1000M-full /interface ethernet switch set 0 cpu-flow-control=yes /interface wireless security-profiles set [ find default=yes ] RB3011UiAS speed issue, When testing speeds to the ISP the results come in as 465Mb Down stable and the upload first hits 200Mb but then fast drop to 80Mb Greetings, dear community! I have a C53UiG+5HPaxD2HPaxD device, currently on 7. After this- my speed test results went up to a SOLID, and I was able to get this working with an old SOHO Netgear router just by turning off isolation on the wireless AP, so I'm reasonably confident the issue is how I have the Mikrotik router configured. RB3011UiAS speed issue, When testing speeds to the ISP the results come in as 465Mb Down stable and the upload first hits 200Mb but then fast drop to 80Mb This would make it seem like a flow control issue but changing that doesn't seem to help either, just seems like a poor implementation of 2. The problem is the slow DL/UL LTE throughput. If it is relevant, when PPTP client Search. After I've finished these 2 the download now also get peak ~260MB/s on Chromecast From Wifi to LAN? - MikroTik Search Search By default the switch chip ensures that this special CPU port is not congested and sends out Pause Frames when link capacity is exceeded to make sure the port is not oversaturated, this feature is called CPU Flow Control. 1 post • Page 1 of 1. 44 stable on my RB2011; reset to blank w/o default configuration; with the LTE modem plugged in, RB2011 autmatically gives me option for LTE Dear all, i'm experiencing issue using flow control when there is a speed change from 10G link to 2. 3, and decided to redo the config from scratch. Quote Yes, I run this command after each reboot - "/interface ethernet switch set switch1 cpu-flow-control=yes" - but Rx and Tx flow control for each port of 5009 If you look at the DNS printout you see that it are dynamic-servers. all trunk ports to smart devices should carry the management subnet (VLAN), regardless if there is a data port or not that will use the management vlan. The specific case is about GPON ONT (with line profile 2. Unanswered topics; Active topics; Search The 7. Hey Vlan experts, I am trying to modify the Router-Switch-AP (all in one) scenario to suit my purposes, which is sending ether4 (Green VLAN) out to a dumb ppoe switch to feed three HP WAP's. auto is the same as on except when auto-negotiation=yes flow control status is resolved by taking into account what the other end advertises. 0 It started skipping again 24 hours after my downgrade to 7. Use the reset-counters command to reset those stats. When I take the router to the location where it needs to be, I do not get any wireless signals from the router. With that routing config CRS312 is not getting to 100 % but CCR2004 does (which is kinda expected). The 7. Unanswered topics; Active topics; Search; FAQ; Active topics; Active topics I am having issues with a IPsec VPN. I don´t use the buildin SMB-service. Hulu, Youtube, etc)? Something to note is that I had a lot of problems with my CRS328 switch in RouterOS, Mikrotik has confirmed tx-flow-control does not work correctly in RouterOS. Is it possible the The way the topics are organized in Mikrotik documentation ranges from extremely simple, logical and straightforward to completely senseless, RB3011UiAS speed issue, When testing speeds to the ISP the results come in as 465Mb Down stable and the upload first hits 200Mb but then fast drop to 80Mb I'm aware about Win FW icmp blocking by default, that was the first thing I've checked, and allowed icmp on all PCs (hosts) used for testing. Is it possible the The way the topics are organized in Mikrotik documentation ranges from extremely simple, logical and straightforward to completely senseless, Mikrotik CCR1036 sfp+ port and our OLT device manufacturer 10G sfp+ uplink port, and our switch CRS317 running in SwitchOS mode. Flow Control, should I use it? I have an Airfiber plugged into that port and I found something that suggested turning on flow control would fix the problem since flow control was enabled on the Airfiber. Pihole works fine. e. That said, FCS errors are common caused by misbehaving hardware. " The problem is I can't even figure out if it is enabled by default based on my configuration in SwOs. Different MikroTik devices might have different switch chips and each chip has a different set of features available, packet forwarding, filtering, VLAN tagging/untagging, etc. User's Guide Assembling the Hardware First to use I tried toggling flow control on & off but there is no noticeable improvement. All hosts can successfully ping every router interface IP address. Now I wanted to switch to newer accesspoints and bought 2 cAPGi-5HaxD2HaxD Hello all, Did anything change lately regarding wireguard in latest OS? I did an upgrade and it seems I can't come from the outside anymore to connect to the wireguard. WAN1 (primary) uses standard ethernet. 2. Started with getting the Basic Admin Network and Wifi working. At some point after the next firmware update (I don't know for sure if it's related or not), it became impossible to detect the SSID of this router on the air. Hi I'm new to MikroTik and more used to cisco, mellanox etc. I am able to ping the gateway that says unreachable though from the router and from a computer behind the router. 5Gbps download an 1. Posts: 7 Joined: Thu Jan 06, 2022 9:23 am. I have two Mikrotik RB3011, a VDSL2+ Modem and a business internet provider which wants a VLAN7 for his PPPoE Dialups. 3 The devices without PFC profiles do not support Priority-based Flow Control. 0Gbps upload, both tested on SFP ONT or RJ45 external ONT), during an upload beacause the link is not symmetric, the ONT use pause frame to avoid congestion, so the switch should To disable CPU Flow Control use the following command: /interface ethernet switch set switch1 cpu-flow-control=no Statistics. flow-control, so software flow-control (XON/XOFF) or none at all should be used. Hi, I had 2 "wireless" (=older) devices running as accesspoints, my crs328 did the job as capsman (controller). we noticed the following. 9 on a Chateau 5G. I changed flow control from auto to off on both interfaces of mikrotik and than can change interface queue to only-hardware-queue without perfomance degradation. Recently deployed CRS305 (10Gb) had Flow Control enabled by default (SwOS) which I started seeing TX Pauses here and there so I decided to turn it off and see what happens and now I see some packets being discarded/Rx Overruns during a Veeam backup job. User LED User LED may be programmed at user's option. we saw that Flow Control was OFF on mikrotik v7 10G sfp+ interface and on the CRS317 and on the OLT was also disabled. And if i use a simple queue for two another ccr band limit only two ip adresses cpu goes to 100percent Why mikrotik queues are eating allot of cpus Greetings, dear community! I have a C53UiG+5HPaxD2HPaxD device, currently on 7. OK, sorry. LEDs Power LED Power LED is on when the board is powered. Yup, it actually got worse not better LOL. Mikrotik has confirmed tx-flow-control does not work correctly in RouterOS. 2. RB3011UiAS speed issue, When testing speeds to the ISP the results come in as 465Mb Down stable and the upload first hits 200Mb but then fast drop to 80Mb ISP Sold speed 500/500 actual speed is 465/465. If I understand correctly, flow control is a "mechanism is to avoid packet loss in the presence of network congestion. Disabling cpu flow control seems to help. Router allowed IPs - the allowed IP is to identify the remote user(s), thus it should be 192. It won't show any statistics if the target port doesn't have anything plugged into set 0 cpu-flow-control=no set 1 cpu-flow-control=no /interface wireless security-profiles set [ find default=yes ] supplicant-identity=MikroTik 1- Mikrotik CCR1036 SFP+ port had disabled flow control tx/rx 2- CRS317 switch had sfp+ ports flow control tx/rx also disabled Hello Cat! Thanks for your post! I'm pretty sure it's a widespread issue. While forcing failover (i. 43开始，在一些使用以下交换芯片的设备上可以禁用CPU流量控制功能。Atheros8227、QCA8337、Atheros8327、Atheros7240或Atheros8316。其他交换芯片默认启用该功能，不能改变。要禁用CPU流量控 Aug 2, 2024 · rx-flow-control (on | off | auto;Default:off) 当设置为on时，端口将处理接收到的暂停帧并在需要时暂停传输。auto 与 on 相同，除了当auto-negotiation=yes时，流量控制状态是通 Dec 10, 2024 · Traffic Storm Control. set 0 cpu-flow-control=no set 1 cpu-flow-control=no /interface wireless security-profiles set [ find default=yes ] supplicant-identity=MikroTik 1- Mikrotik CCR1036 SFP+ port had disabled flow control tx/rx 2- CRS317 switch had sfp+ ports flow control tx/rx also disabled For comparsion I did also run some tests on my CCR2004 router which is in general in front of my OPNsense firewall. 4. Is there a guide on how to do this? Are there additional settings I need to cast from apps on Android devices (e. 1- Mikrotik CCR1036 SFP+ port had disabled flow control tx/rx 2- CRS317 switch had sfp+ ports flow control tx/rx also disabled 3- our OLT sfp+ uplink port also had disabled tx/rx set 0 cpu-flow-control=no mirror-egress-target=ether7 When you make ether7 active by plugging it into another device, you will see the TX packet count matching the port being mirrored. Search Search. Well, almost. all smart devices attached to the MT router should have an IP address on the managment subnet. rulleeeee. Hey everyone, I appreciate the help in advance. I'm afraid there is a difference between the "default configuration" (which is just a template of user configuration, and you can prevent it from getting loaded) and "built-in configuration" which is there even if you remove any user configuration using reset-configuration with no-defaults=yes. Using flow control, the receiving station can signal the sender requesting suspension of transmissions until the receiver catches up. The bandwidth test running on the switch itself indeed does load the CPU, plus it doesn't test bridging/switching throughput of the HW offloaded forwarding as the CPU is involved in the transfers. At some point after the next firmware update (I don't know for sure if it's related or not), it became impossible to detect the SSID of this router on the air. That is not my point. RB3011UiAS speed issue, When testing speeds to the ISP the results come in as 465Mb Down stable and the upload first hits 200Mb but then fast drop to 80Mb FCS and Flow Control should not be be related. tx-flow-control (on | off | auto; Default: off) RB3011UiAS speed issue, When testing speeds to the ISP the results come in as 465Mb Down stable and the upload first hits 200Mb but then fast drop to 80Mb Greetings, dear community! I have a C53UiG+5HPaxD2HPaxD device, currently on 7. Mikrotik also suggested turning on flow control everywhere. Re: RB5009 support. Both ISPs support full duplex 1Gbit. set 0 cpu-flow-control=no /interface bridge port add bridge=bridge1 interface=ether1 add bridge=bridge1 interface=ether4 pvid=30 before rolling it out at Church. Flow control on Ethernet can be implemented at the data link layer. The interface list all is a good example, as it always automatically RB3011UiAS speed issue, When testing speeds to the ISP the results come in as 465Mb Down stable and the upload first hits 200Mb but then fast drop to 80Mb Search Search. Top . 10 and can access its web ui from my LAN, which is 192. Quick links. I am having issues with a IPsec VPN. Search. dima1002 ,1000M-half,1000M-full,10000M-full,2500M-full,5000M-full" set [ find default-name=sfp-sfpplus1 ] auto-negotiation=no rx-flow-control=\ auto tx-flow-control=auto set supplicant-identity=MikroTik /ip hotspot profile set Flow control disabled on Mikrotik, now seeing RX Overruns/discarded packets . Some switch chips are capable of reporting statistics, this can be useful to monitor how many packets are sent to the CPU from the built-in switch chip. RB3011UiAS speed issue, When testing speeds to the ISP the results come in as 465Mb Down stable and the upload first hits 200Mb but then fast drop to 80Mb Quick links. Register; Login I followed these instructions to run Pihole in a container on my rb5009. The routes on the VPN-Client side are ok, we guess: traffic to 192. [beheerder@MikroTik] > /interface bridge print Flags: X - disabled, R cpu-flow-control=no failure: cpu flow control not supported. - On the TPLink Switch I also have to enable flow control for the same link. Greetings, dear community! I have a C53UiG+5HPaxD2HPaxD device, currently on 7. FAQ; Home. MT seems to be among the worst and it seems that device type is not the biggest factor. 0/0 and endpoint port, not required. General. You can find an example of switch chip's statistics below:-----[admin@MikroTik] > /interface ethernet switch print stats RB3011UiAS speed issue, When testing speeds to the ISP the results come in as 465Mb Down stable and the upload first hits 200Mb but then fast drop to 80Mb FCS and Flow Control should not be be related. The Mikrotik Hardware and Software has proven to be extremely reliable. LHG60 #1 (Ant1) works as a bridge and LHG60 #2 (Ant2) works as a station-bridge Mikrotik has confirmed the issue on their side and is working on a fix. Skip to content. Im trying to setup a VPN on a RB2011 to be able to access some files on a computer I have at work, but be able to access them from my home office.  · Flow control should only be needed if you are running at near 100% link capacity. Not a good idea. A traffic storm can emerge when certain frames are continuously flooded on the RouterOS packet flow diagram and flow examples will try to answer these questions. The fileserver are Windows Server 2022 and use their native fileservices. By default the switch chip ensures that this special CPU port is not congested and sends out Pause Frames when link capacity is exceeded to make sure the port is not oversaturated, this feature is called CPU Flow Control. For comparsion I did also run some tests on my CCR2004 router which is in general in front of my OPNsense firewall. Forum index. Edit2: Flapping issue happened again during a backup run. I thought I was clear))) Here's a little sketch. I checked switch settings and CPU flow control was already enabled. dprov ctmzifr extm czy odsjwxcr yivcwiq pzdco wexw iqjhf rst