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A Forwarding Engine based on the Packet Processor for MPLS LER  

박재형 (전남대학교 전자컴퓨터정보통신공학부)
김미희 (한국전자통신연구원 네트워크연구소)
정민영 (성균관대학교 정보통신공학부)
이유경 (한국전자통신연구원 네트워크연구소)
Publication Information
Journal of KIISE:Computing Practices and Letters / v.9, no.4, 2003 , pp. 447-454 More about this Journal
Abstract
The forwarding enging, which handles the incoming frames and forwards them to the appropriate outgoing interface, is the crucial factor of the router´s performance. As the MPLS label edge router provides the facility that it is capable of interworking with various kinds of networks, the forwarding engine should have the flexibility processing the corresponding types of frames from such network interfaces. In order to support the flexibility, we implement the forwarding engine for the MPLS LER with ATM interfaces based on the programmable Ethernet packet processor. By exploiting instinct loop-back functionality of Ethernet packet processor, our forwarding engine handles and forwards the frames from/to ATM interfaces. The performance of our forwarding engine is evaluated by experiments on the effect of looping frames back and the number of Ethernet packet processor´s instructions.
Keywords
ATM-based MPLS; Label Edge Router; Forwarding Engine; Packet Processor; MAC Frame Loopback;
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