提出了一種新穎的交叉連接節(jié)點，它兼容彈性分組環(huán)標(biāo)準(zhǔn)節(jié)點的功能。多個彈性分組環(huán)通過交叉連接節(jié)點互連后，可構(gòu)建彈性分組多環(huán)互連網(wǎng)絡(luò)。為保證數(shù)據(jù)能可靠、高效地進(jìn)行跨環(huán)傳輸，對基于單環(huán)架構(gòu)的標(biāo)準(zhǔn)幀格式進(jìn)行了擴(kuò)展定義，并基于擴(kuò)展的幀格式對交叉連接節(jié)點的體系結(jié)構(gòu)、跨環(huán)幀轉(zhuǎn)發(fā)算法進(jìn)行了設(shè)計。研究表明，跨環(huán)數(shù)據(jù)能夠可靠、高效地進(jìn)行傳輸。This paper introduces a new kind of node, namely, RPR-X node, to interconnect multiple Resilient Packet Rings (RPR). To achieve packets cross transmission among RPR sub-networks, and at the same time to guarantee the cross forwarding algorithm to be compatible with the standard forwarding procedure, this paper presents the extended definitions of standard RPR frame, MAC layer reference model of RPR-X node, and the corresponding packet cross forwarding algorithm. Simulation results demonstrate that the proposed method performs well in terms of performance metrics such as network’s throughput and end-to-end delay.