Department of Software and Communications Engineering, Hongik University, Sejong City 30016, Republic of Korea.
Department of Electronics & Computer Engineering, Hongik University, Sejong City 30016, Republic of Korea.
Sensors (Basel). 2023 Jan 27;23(3):1411. doi: 10.3390/s23031411.
The named data networking (NDN)-based microservice-centric in-network computation poses various challenges in terms of interest aggregation and pending interest table (PIT) lifetime management. A same-named microservice-centric interest packet may have a different number of input parameters with nonidentical input values. In addition, the same-named interest packet with the same number of parameters may have different corresponding parameter values. The vanilla NDN request aggregation (based on the interest name, while ignoring the input parameters count and/or their corresponding values) may result in false aggregation. Moreover, the microservice-centric requested computations may fail to accomplish in the default 4s PIT timer due to the input size. To address these challenges, this paper presents MIA-NDN: microservice-centric interest aggregation in named data networking. We designed microservice-centric interest-naming to enable name-based communication. MIA-NDN develops a robust interest aggregation mechanism that not only performs the interest aggregation based on the interest name but also considers the input parameter counts and their corresponding values in the interest aggregation process to avoid false packet aggregations. A dynamic PIT timer mechanism based on input size was devised that avoids the PIT entry losses if the execution time exceeds the default PIT timer value to avoid computation losses and uphold the application quality of service (QoS). Extensive software-based simulations confirm that the MIA-NDN outperforms the benchmark scheme in terms of microservice-centric interest aggregation, microservice satisfaction rate, and communication overhead.
基于命名数据网络（NDN）的微服务中心的网络内计算在兴趣聚合和挂起兴趣表（PIT）寿命管理方面提出了各种挑战。具有相同名称的微服务中心的兴趣包可能具有不同数量的输入参数，并且输入值也不相同。此外，具有相同数量参数的同名兴趣包可能具有不同的对应参数值。香草 NDN 请求聚合（基于兴趣名称，而忽略输入参数计数和/或它们的对应值）可能导致错误的聚合。此外，由于输入大小，微服务中心请求的计算可能无法在默认的 4s PIT 计时器内完成。为了解决这些挑战，本文提出了 MIA-NDN：命名数据网络中的微服务中心兴趣聚合。我们设计了微服务中心的兴趣命名，以实现基于名称的通信。MIA-NDN 开发了一种强大的兴趣聚合机制，该机制不仅基于兴趣名称执行兴趣聚合，而且还考虑了兴趣聚合过程中的输入参数计数及其对应值，以避免错误的分组聚合。设计了基于输入大小的动态 PIT 计时器机制，如果执行时间超过默认 PIT 计时器值，则避免 PIT 条目丢失，以避免计算丢失并维持应用程序服务质量（QoS）。基于软件的广泛模拟证实，MIA-NDN 在微服务中心兴趣聚合、微服务满意度和通信开销方面优于基准方案。
