# Manage traffic flow on Switch-1 for multiple sensors **URL:** \ **Category:** DRIVE AGX Orin General\ **Tags:** drive-platform-configuration\ **Created:** [September 30, 2026, 1:24pm UTC](https://forums.developer.nvidia.com/t/manage-traffic-flow-on-switch-1-for-multiple-sensors/384755 "2026-09-30T13:24:32Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![JudyJetson](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@JudyJetson](https://forums.developer.nvidia.com/u/JudyJetson)\ **Post date:** [September 30, 2026, 1:24pm UTC](https://forums.developer.nvidia.com/t/manage-traffic-flow-on-switch-1-for-multiple-sensors/384755/1 "2026-09-30T13:24:32Z")
**DRIVE OS Version:** DRIVE OS 6.0.8.1, Driveworks 5.14 **Issue Description:** We try to run six Continental/Aumovio ARS430DI radar sensors on the Drive Orin connected through MateNET J11 on Switch-1. Those sensors are using multicast addresses for their communication (sensor, status, configuration). This means the switch will forward all packets of one sensor to the 5 other sensors (and also all other internal ports). So every sensor receives sensor data of 5 other sensors. Besides the unnecessary traffic it creates a real issues: The packets with the vehicle dynamic data from host to the sensors don’t get through reliably and the sensors will report an error and probably have unreliable egomotion available what degrades their processing. A solution for this kind of issues is using VLAN to mange the traffic flow, but I could not find a clear answer if and how it is possible for switch-1 on the P3710. Can somebody help me to find out, how to do this, that we can make full use of all six radar sensors? ---
**Author:** ![SivaRamaKrishnaNV](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/sivaramakrishnanv/32/14043_2.png) [@SivaRamaKrishnaNV](https://forums.developer.nvidia.com/u/SivaRamaKrishnaNV)\ **Post date:** [September 30, 2026, 6:07pm UTC](https://forums.developer.nvidia.com/t/manage-traffic-flow-on-switch-1-for-multiple-sensors/384755/3 "2026-09-30T18:07:41Z")
> [@JudyJetson](#): > > A solution for this kind of issues is using VLAN to mange the traffic flow. but I could not find a clear answer if and how it is possible for switch-1 on the P3710 Do you mean to enable VLAN on P1-P6 ports on switch 1? Let me check on this internally and update you. Are you using DW radar replay sample to check radar data? Is it possible to share ifconfig output when all radar connected? ---
**Author:** ![JudyJetson](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@JudyJetson](https://forums.developer.nvidia.com/u/JudyJetson)\ **Post date:** [September 30, 2026, 9:28pm UTC](https://forums.developer.nvidia.com/t/manage-traffic-flow-on-switch-1-for-multiple-sensors/384755/4 "2026-09-30T21:28:29Z")
> [@SivaRamaKrishnaNV](#): > > Do you mean to enable VLAN on P1-P6 ports on switch 1? Let me check on this internally and update you. Activating is one thing, configuring it another. Rough config concept: - P1-P6 getting each their own VLAN id and incomming packets get tagged with that ID. - Additionally P1-P6 would need to be VLAN member for a management VLAN ID. - The P10 (Tegra connection) would be member of all VLAN ids of the sensors (P1-P6) and the management VLAN ID. - Incomming packets (from Tegra) would get the management VLAN ID. - All packets going out of P1-P6 and P10 would have their VLAN tags removed. This way the packets of each sensor would only be forwarded to P10 and the packets from Tegra (config and vehicle dynamics) would reach all sensors. > [@SivaRamaKrishnaNV](#): > > Are you using DW radar replay sample to check radar data? no we have our own ROS 2 node for that. > [@SivaRamaKrishnaNV](#): > > Is it possible to share ifconfig output when all radar connected? In general yes, but would take some time to get my hands on the car. What are you interested in? ---
**Author:** ![SivaRamaKrishnaNV](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/sivaramakrishnanv/32/14043_2.png) [@SivaRamaKrishnaNV](https://forums.developer.nvidia.com/u/SivaRamaKrishnaNV)\ **Post date:** [October 6, 2026, 8:17am UTC](https://forums.developer.nvidia.com/t/manage-traffic-flow-on-switch-1-for-multiple-sensors/384755/5 "2026-10-06T08:17:35Z")
Hi @JudyJetson , Did you check our DW radar replay network settings with VLAN at [DriveWorks SDK Reference: Radar Replay Sample](https://developer.nvidia.com/docs/drive/drive-os/6.0.10/public/driveworks-nvsdk/nvsdk_dw_html/dwx_radar_replay_sample.html) ? Does this help your case? ---
**Author:** ![SivaRamaKrishnaNV](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/sivaramakrishnanv/32/14043_2.png) [@SivaRamaKrishnaNV](https://forums.developer.nvidia.com/u/SivaRamaKrishnaNV)\ **Post date:** [October 6, 2026, 8:17am UTC](https://forums.developer.nvidia.com/t/manage-traffic-flow-on-switch-1-for-multiple-sensors/384755/6 "2026-10-06T08:17:57Z")
Hi @JudyJetson , Did you check our DW radar replay network settings with VLAN at [DriveWorks SDK Reference: Radar Replay Sample](https://developer.nvidia.com/docs/drive/drive-os/6.0.10/public/driveworks-nvsdk/nvsdk_dw_html/dwx_radar_replay_sample.html) ? Does this help your case? ---
**Author:** ![JudyJetson](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@JudyJetson](https://forums.developer.nvidia.com/u/JudyJetson)\ **Post date:** [October 6, 2026, 9:12am UTC](https://forums.developer.nvidia.com/t/manage-traffic-flow-on-switch-1-for-multiple-sensors/384755/7 "2026-10-06T09:12:35Z")
I came across it during my search previous to my initial post. I did not try it, because: - it’s using only one radar, which works on our side with our tooling well. - The commands used only configure a VLAN on the Tegra side. It does not explain how this will “magically” configure VLAN in the switch or the radars itself. If there is some hidden VLAN configuration already in the switch, to be used, I would be glad to have some documentation/information about it. Only thing related to this I could find here: [VLAN Configuration | NVIDIA Docs](https://developer.nvidia.com/docs/drive/drive-os/6.0.10/public/drive-os-linux-sdk/common/topics/network_stub/VLAN.html) but it only mentions the VLAN 200 for the communication between Tegra and Aurix ---
**Author:** ![SivaRamaKrishnaNV](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/sivaramakrishnanv/32/14043_2.png) [@SivaRamaKrishnaNV](https://forums.developer.nvidia.com/u/SivaRamaKrishnaNV)\ **Post date:** [October 7, 2026, 10:46am UTC](https://forums.developer.nvidia.com/t/manage-traffic-flow-on-switch-1-for-multiple-sensors/384755/8 "2026-10-07T10:46:34Z")
Dear @JudyJetson , If you want to make any configuration changes in switch, you need to out reach out to switch vendor. It can not be done from DRIVE OS and is outside the scope of forum support. > [@JudyJetson](#): > > - The commands used only configure a VLAN on the Tegra side Please try the same for each radar and see if it helps to route the traffic. ---
**Author:** ![carolyuu](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/carolyuu/32/14043_2.png) [@carolyuu](https://forums.developer.nvidia.com/u/carolyuu)\ **Post date:** [October 17, 2026, 8:25pm UTC](https://forums.developer.nvidia.com/t/manage-traffic-flow-on-switch-1-for-multiple-sensors/384755/9 "2026-10-17T20:25:19Z")
Could you please provide any update for this topic?