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http://dx.doi.org/10.7840/KICS.2011.36B.5.429

Implementation of an Ethernet Adapter for the G-PON TC Layer  

Chung, Hae (금오공과대학교 전자통신과 통신망연구실)
Ahn, Eu-Kwang (금오공과대학교 전자통신과 통신망연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.36, no.5B, 2011 , pp. 429-436 More about this Journal
Abstract
The G-PON is an efficient solution to implement the FTTH and have GEM frame to accomodate various protocols like Ethernet frames, IP packets, and TDM signals. Above all, the Ethernet is one of the most widely used 2nd layer protocol in the campus, the subscriber access, and the carrier service. So G-PON system has to provide an Ethernet interface with top priority. In this paper, we implement a gigabit Ethernet adapter based on Ethernet over GEM in the ITU-T G.984.3 to accommodate Ethernet protocol in the G-PON TC chip. The adapter maps each Ethernet frame to a single or multiple GEM frames and has several functions including generation of the GEM header, encapsulation of frames and the SAR. In particular, the adapter have converter (LUT) MAC address to port-ID which is a key to identify logical connections though it is not defined in specification but important. We implement the adapter with a FPGA and verify the functions of segmentation and reassembling, MAC address learning, and throughput with the logic analyzer and the Ethernet analyzer.
Keywords
Ethernet Adapter; G-PON; FTTH; GEM Frame;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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