Transports

What does "RTINetioSender_addDestination:no transport for request" mean?

Note: Applies to RTI Connext 4.x and above The message RTINetioSender_addDestination:no transport for request is a warning that RTI Connext could not find a transport for a specified peer locator. The UDPv4 and shared memory transports are installed by default. When a node tries to add a ...
yusheng
Thu, 01/17/2013 - 12:56
4232 reads — 0 comments

What does the "can't reach: locator" error message mean?

Note: Applies to RTI Connext 4.x. In general, a can't reach:locator: error message means that a DataWriter cannot send to the locator of a DataReader , usually due to a transport configuration error. For example, suppose Participant A has both the UDPv4 and shared-memory built-in transports enabled ...
vishal
Thu, 01/17/2013 - 12:24
23365 reads — 1 comment

What is the maximum message size supported by RTI Connext 4.x and above?

Note : Applies to RTI Connext 4.x and above. Prior to RTI Data Distribution Service 4.1d, the maximum message size supported by RTI Data Distribution Service was determined by the installed transports. Each transport may impose a maximum message size. The maximum message size supported by a ...
Juanjo Martin
Thu, 01/17/2013 - 09:01
15766 reads — 2 comments

What are "heartbearts" and how are they used in RTI Data Distribution Service 3.x?

Note : The following discussion applies to RTI Data Distribution Service 3.x only. (There is a separate FAQ for 4.x.) Heartbeats (HBs) are sent for one of two reasons: Every SendQueueSize / HeartBeatsPerSendQueue issues, RTI Data Distribution Service will append a HB to the issue to request that it ...
Juanjo Martin
Thu, 01/17/2013 - 08:44
3267 reads — 0 comments

What are "heartbeats" and how are they used in RTI Connext 4.x and above?

Note : Applies to RTI Connext 4.x and above. There is a separate FAQ for 3.x. RTI Connext supports various transports to deliver data samples. Not all of these transports guarantee that all samples are delivered. For example, when using UDP, samples can be lost or can arrive out of order. The OMG ...
Juanjo Martin
Thu, 01/17/2013 - 08:25
7149 reads — 0 comments

How do I limit NIC usage for multicast in NDDS 3.1a?

Note: Applies to NDDS 3.x For machines with multiple NICs, it is sometimes useful to specify which NIC(s) to communicate over. Multicast packets will be sent through all interfaces that satisfy the following criteria: It is enabled for multicast NDDS is configured to use it Enabling a NIC for ...
sara
Thu, 01/17/2013 - 08:17
3791 reads — 0 comments

Do I need to set the max. participant index in the peers list?

Note: Relevant RTI Connext versions: RTI Connext 4.x and above. The Maximum Participant Index is an optional value at the beginning of a Peer Descriptor. It is used to specify a range of ports where RTI Connext will look for other participants during the discovery process. It tells RTI Connext how ...
aida
Thu, 01/17/2013 - 07:57
5790 reads — 0 comments

Does RTI Connext use IGMP messages?

Note: Applies to NDDS 3.x, RTI Connext 4.x and above Yes, RTI Connext will cause IGMP messages to be sent, allowing routers to appropriately handle multicast traffic delivery. The RTI code does not send the IGMP messages itself, but the host's network stack should send them when needed. When RTI ...
sara
Thu, 01/17/2013 - 07:27
5125 reads — 0 comments

Why doesn't RTI Connext support Broadcast?

Note: Applies to NDDS 3.x, RTI Connext 4.x and above. There are several drawbacks to using broadcast. There is a performance degradation problem when using broadcast. It disrupts EVERY node in the system-even the ones that do not want ANY data! Such a system is clearly not scalable. With broadcast ...
Juanjo Martin
Thu, 01/17/2013 - 06:35
3372 reads — 0 comments

What network port numbers does RTI Connext use?

Note: The ports used are different between RTI Connext 4.x and NDDS 3.x. RTI Connext The built-in UDP transport in RTI Connext 4.x and above uses port numbers that are based on the domain ID and participant ID. Because the RTPS spec changed, the mapping is different before and after Version 4.2 of ...
Fernando Garcia
Mon, 01/14/2013 - 08:30
39147 reads — 4 comments

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