An explosive increase in Internet Protocol (IP) traffic demands new classes of high-speed distributed IP router. The current IP backbone systems are being realized using SDH/ATM networks. IP packets are transported via electrical IP router between optical line terminals (OLT) in both the core and edge networks. SDH/WDM network could replace the OLT by the wavelength division multiplexing line terminal (WDM-LT), however, the electrical IP router is still remain in the core network. The electrical IP router shows a performance bottleneck because of limited throughput, and it also causes end-to-end transmission delay. In IP over photonic network, photonic IP routers are located in the edge networks as the IP backbone routers and only the wavelength routers are located in the core network. The photonic IP routers can communicate with each other through a full-mesh WDM core network [1]. This will minimize transfer delay and support the high throughput of the nodes.
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