![]() ![]() In future parts of this guide I’ll cover link planning, configuration, installation, and maintenance. This introduction focuses on the fundamentals. It’s impossible to cover everything about PtP and PtMP radios in a single post. This allows them to cover longer distances than omnidirectional antennas. Rather than broadcast over an entire area, they focus their energy in a single direction. They are bad for broad coverage, but much better for long range connections. PtP and PtMP radios use antennas that have higher gain and are more directional. To cover longer distances or extend a network to another location, point-to-point (PtP) and point-to-multipoint (PtMP) radios should be used instead. Additional APs can expand coverage, but a Wi-Fi network’s range is also limited by the low-powered phones and laptops that connect to it. They usually cover a few hundred feet at most, and much less with walls or obstructions in the way. Omnidirectional APs are good at covering the surrounding area, but bad at covering long distances. They broadcast in all directions, allowing nearby devices to connect. In a typical Wi-Fi network, wireless access points use omnidirectional antennas. Reset the client’s state without contacting the Agent.Intro to Ubiquiti PtP and PtMP Radios Omnidirectional vs. The application calls NANO_XRCE_Client_mark_disconnected() to unilaterlly This operation sends a disconnection message,Īnd waits for a confirmation from the Agent that the session was properly The application calls NANO_XRCE_Client_disconnect() to perform a “cleanĭisconnection” from the Agent. The flag is lifted upon reception of a connection reply from the Agent, and it The client’s stores the “connection status” in an internal flag, which can beĬhecked using macro NANO_XRCE_Client_connected(). */ #define TRANSPORT_BUFFER_SIZE \ (NANO_OSAPI_Memory_align_size_up( \ TRANSPORT_MTU, sizeof(NANO_MessageBufferData)) / \ sizeof(NANO_MessageBufferData)) int main ( void ) Type NANO_MessageBufferData will always be defined to be at least 32-bit, and it can be used to guarantee this alignment. Acceptable values will depend on the specific transport and hardware available on the target system */ #define TRANSPORT_MTU 1024 /* The receive buffer should be aligned `CREATE_CLIENT` at a boundary of at least 4 bytes. */ #define SESSION_ID 0x81 /* Transport MTU is arbitrary and defined by the application. by "binding" the client's source IP address/port to the client's key provided during connection). If the client key is omitted, the XRCE Agent must be able to correlate the client's transport with the client's session (e.g. Depending on the selected session id, the exchanged XRCE messages will include the client's key in each message's header (if session id 0x80). ![]() #include "nano/nano_client.h" /* Clients can select any arbitrary, non-zero, 32-bit key */ #define CLIENT_KEY 0xABCDABCD /* Client's can select any non-zero session id, with the exception of values 0x01 and 0x80, which are reserved by the protocol. The following snippet shows how to initialize a NANO_XRCE_Client using the Transport implementations should also not perform any dynamic memory allocation,Īnd they will typically require applications to pass in a buffer for storing Which extends the base structure with additonal, transport-specific parameters. These include theĪgent’s locator and the MTU that should be enforced on the transport link.Įach transport implementation will typically define their own properties type, NANO_XRCE_ClientTransportProperties data structure. Should accept the basic configuration parameters defined by the ( NANO_XRCE_Udpv4ClientTransport), and Serial linesĮach transport object abstracts the client’s connection to the Agent and it RTI nano-client includes implementations of this interface for UDPv4 sockets Transports are modelled by the NANO_XRCE_ClientTransport interface, and Since this is a somewhat advanced useĬase, RTI nano-client provides “default” storage classes that should beĪ NANO_XRCE_Client requires a transport object to exchange messages with theĪgent. The amount of memory consumed by their applications in accordance with available Developers can use this interface to fine tune To allocate data structures at runtime (e.g. Object, abstracted by type NANO_XRCE_ClientStorage, will be used by the client Object” which applications must provide during client initialization. “variable state” stored by a NANO_XRCE_Client is encapsulated by a “storage Since RTI nano-client does not perform any dynamic memory allocation, all The Agent’s locator (depending on transport). ![]()
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