Socket echo server sample with border router

Question

Hello ! 
 I have taken echo server sample 
 https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/samples/net/sockets/echo_server/README.html#sockets-echo-server-sample 
 and it work well with USB-NET connectivity 
 west build --pristine --board nrf5340dk_nrf5340_cpuapp – -DOVERLAY_CONFIG=overlay-netusb.conf 
 ping and echos are returned as expected 
 I have got impression that server sample can be part of mesh and border router might be activated 
 by using OpenThread and/or IPSP overlays 
 west build --pristine --board nrf5340dk_nrf5340_cpuapp – -DOVERLAY_CONFIG=”overlay-ot.conf;overlay-netusb.conf” 
 or 
 west build --pristine --board nrf5340dk_nrf5340_cpuapp – -DOVERLAY_CONFIG=”overlay-bt.conf;overlay-netusb.conf” 
 
 Image build is OK, but looks like extra configuration need. No ping and echo any more. 
 Pictures from netterminal 
 
 Does this kind of configuration with Border Router exist in samples ? 
 I have some Hosts what would like to communicate via nRF53 what is used as modem like device ( IPV6 like). 
 Really I need good start point for environment where I can use own radio via HCI_rpmg on network core. 
 
 Regards, 
 Eugene

Maria Gilje · Accepted Answer

Hello, 
 Hiihtaja said: All of your network drivers running on the network core but controlled via IPC from application core. 
 The drivers are not controlled via IPC but the communication between the cores is done using the RPMsg messaging protocol which is based on the OpenAMP. You can learn more about the RPMsg protocol from this documentation: https://github.com/OpenAMP/open-amp/wiki/RPMsg-Messaging-Protocol . 
 Hiihtaja said: Now I looking good sample for this kind of driver because I need to write own one in similar way. 
 To enable and use communication between the cores, for Bluetooth LE you use HCI RPMsg ( documentation , code ) or for Bluetooth LE and 802.15.4 radio you use Multiprotocol RPMsg ( documentation , code ). 
 The network driver you write can use RPMsg i a similar manner to enable communication between the cores. 
 Best Regards, Maria

Socket echo server sample with border router

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