DDS Interoperability Wire Protocol Avatar
  1. OMG Specification

DDS Interoperability Wire Protocol — Open Issues

  • Acronym: DDSI-RTPS
  • Issues Count: 3
  • Description: Issues not resolved
Open Closed All
Issues not resolved

Issues Summary

Key Issue Reported Fixed Disposition Status
DDSIRTP26-3 SequenceNumberSet validity could be too strict DDSI-RTPS 2.3 open
DDSIRTP26-2 Support transport-level RTPS message compression DDSI-RTPS 2.3b1 open
DDSIRTP26-1 Interoperability of Transient/Persistent data DDSI-RTPS 2.3b1 open

Issues Descriptions

SequenceNumberSet validity could be too strict

  • Key: DDSIRTP26-3
  • Status: open  
  • Source: Object Computing, Inc. - OCI ( Mr. Adam Mitz)
  • Summary:

    9.4.2.6 SequenceNumberSet defines one of the rules for validity as
    bitmapBase >= 1

    We have observed that other implementations use bitmapBase 0 in AckNack submessages. There seems to be no downside to just accepting these as valid even though the spec currently says they are not.

    The RTF should determine if this condition in 9.4.2.6 can just be removed.
  • Reported: DDSI-RTPS 2.3 — Mon, 7 Jun 2021 22:55 GMT
  • Updated: Tue, 30 May 2023 22:53 GMT

Support transport-level RTPS message compression

  • Key: DDSIRTP26-2
  • Status: open  
  • Source: Real-Time Innovations ( Dr. Gerardo Pardo-Castellote, Ph.D.)
  • Summary:

    Some transports have limited bandwidth and may benefit from compressing the RTPS message prior to being sent over the transport.

    This is something that could be added in a reasonably simple manner by considering this part of the transport PSM.
  • Reported: DDSI-RTPS 2.3b1 — Mon, 14 Sep 2020 15:06 GMT
  • Updated: Fri, 9 Apr 2021 12:28 GMT