Abstract

This paper presents a theoretical and experimental evaluation of the subcarrier-multiplexing label and payload alignment in an optical label-swapping router; optical packets, which are composed of label and payload, are transmitted from the edge router to the core router, where the labels are processed, and the new labels are reassembled to the payload in a synchronized operation. True delays of the signals in the core router are precisely evaluated, and synchronization aspects are studied in detail. For the first time, to our knowledge, the experimental verification allows the evaluation of the delay-tolerance range in the process of coding the baseband label onto the optical packet without affecting the normal operation of the router. Key issues found in the core-router implementation are thoroughly described throughout this paper.

© 2007 IEEE

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  1. D. K. Hunter, I. Andonovic, "Approaches to optical internet packet switching," IEEE Commun. Mag. 28, 116-122 (2000).
  2. S. J. B. Yoo, F. Xue, Y. Bansal, J. Taylor, Z. Pan, J. Cao, M. Jeon, T. Nady, G. Goncher, K. Boyer, K. Okamoto, S. Kamei, V. Akella, "High-performance optical-label switching packet routers and smart edge routers for the next-generation internet," IEEE J. Sel. Areas Commun. 21, 1041-1051 (2003).
  3. B. E. Olsson, P. Ohlen, L. Rau, G. Rossi, O. Jerphagnon, R. Doshi, D. S. Humphries, D. J. Blumenthal, V. Kaman, J. E. Bowers, "Wavelength routing of 40 Gb/s packets with 2.5 Gb/s header erasure/rewriting using all-fibre wavelength converter," Electron. Lett. 36, 345-347 (2000).
  4. A. Carena, M. D. Vaughn, R. Gaudino, M. Shell, D. J. Blumenthal, "OPERA: An optical packet experimental routing architecture with label swapping capability ," J. Lightw. Technol. 16, 2135-2145 (1998).
  5. P. Gambini, M. Renaud, C. Guillemot, F. Callegati, I. Andonovic, B. Bostica, D. Chiaroni, G. Corazza, S. L. Danielsen, P. Gravey, P. B. Hansen, M. Henry, C. Janz, A. Kloch, R. Krähenbühl, C. Raffaelli, M. Schilling, A. Talneau, L. Zucchelli, "Transparent optical packet switching: Network architecture and demonstrators in the KEOPS project ," IEEE J. Sel. Areas Commun. 16, 1245-1259 (1998).
  6. A. Martinez, G. Puerto, D. Pastor, J. Capmany, B. Ortega, M. Popov, P. Y. Fonjallaz, L. Pierno, M. Varasi, T. Banky, T. Berceli, "Parallel label generation and rewriting configuration for 10 Gb/s/channel DWDM–SCM label swapping using FBG arrays," Proc. IEEE LEOS Conf. (2004) pp. 847-848.
  7. W. Wang, L. Rau, D. Blumenthal, "All-optical label switching/swapping of 160 Gbps variable length packets and 10 Gbps labels using a WDM Raman enhanced-XPM fiber wavelength converter with unicast/multicast operation," Optical Fiber Commun. Conf. (OFC) Los AngelesCA (2004) Paper PDP8.
  8. M. Y. Jeon, Z. Pan, J. Cao, Y. Bansal, J. Taylor, Z. Wang, V. Akella, K. Okamoto, S. Kamei, J. Pan, S. J. B. You, "Demonstration of all-optical packet switching routers with optical label swapping and 2R regeneration for scalable optical label switching network applications," J. Lightw. Technol. 21, 2723-2733 (2003).
  9. A. Martínez, M. Manzanedo, G. Puerto, D. Pastor, B. Ortega, J. Capmany, T. Banky, G. Kovacs, T. Berceli, M. K. Popov, P.-Y. Fonjallaz, "Recent advances on optical label swapping techniques. An approach to the final results of IST–LABELS project," Proc. ICTON (2006) pp. 51-56.
  10. G. Puerto, B. Ortega, A. Martínez, D. Pastor, M. D. Manzanedo, J. Capmany, "Scalability of 10 Gb/s SCM optical label swapping networks featuring 2R multistage intra-node regeneration," Electron. Lett. 42, 712-714 (2006).

2006 (1)

G. Puerto, B. Ortega, A. Martínez, D. Pastor, M. D. Manzanedo, J. Capmany, "Scalability of 10 Gb/s SCM optical label swapping networks featuring 2R multistage intra-node regeneration," Electron. Lett. 42, 712-714 (2006).

2003 (2)

M. Y. Jeon, Z. Pan, J. Cao, Y. Bansal, J. Taylor, Z. Wang, V. Akella, K. Okamoto, S. Kamei, J. Pan, S. J. B. You, "Demonstration of all-optical packet switching routers with optical label swapping and 2R regeneration for scalable optical label switching network applications," J. Lightw. Technol. 21, 2723-2733 (2003).

S. J. B. Yoo, F. Xue, Y. Bansal, J. Taylor, Z. Pan, J. Cao, M. Jeon, T. Nady, G. Goncher, K. Boyer, K. Okamoto, S. Kamei, V. Akella, "High-performance optical-label switching packet routers and smart edge routers for the next-generation internet," IEEE J. Sel. Areas Commun. 21, 1041-1051 (2003).

2000 (2)

B. E. Olsson, P. Ohlen, L. Rau, G. Rossi, O. Jerphagnon, R. Doshi, D. S. Humphries, D. J. Blumenthal, V. Kaman, J. E. Bowers, "Wavelength routing of 40 Gb/s packets with 2.5 Gb/s header erasure/rewriting using all-fibre wavelength converter," Electron. Lett. 36, 345-347 (2000).

D. K. Hunter, I. Andonovic, "Approaches to optical internet packet switching," IEEE Commun. Mag. 28, 116-122 (2000).

1998 (2)

A. Carena, M. D. Vaughn, R. Gaudino, M. Shell, D. J. Blumenthal, "OPERA: An optical packet experimental routing architecture with label swapping capability ," J. Lightw. Technol. 16, 2135-2145 (1998).

P. Gambini, M. Renaud, C. Guillemot, F. Callegati, I. Andonovic, B. Bostica, D. Chiaroni, G. Corazza, S. L. Danielsen, P. Gravey, P. B. Hansen, M. Henry, C. Janz, A. Kloch, R. Krähenbühl, C. Raffaelli, M. Schilling, A. Talneau, L. Zucchelli, "Transparent optical packet switching: Network architecture and demonstrators in the KEOPS project ," IEEE J. Sel. Areas Commun. 16, 1245-1259 (1998).

Electron. Lett. (2)

B. E. Olsson, P. Ohlen, L. Rau, G. Rossi, O. Jerphagnon, R. Doshi, D. S. Humphries, D. J. Blumenthal, V. Kaman, J. E. Bowers, "Wavelength routing of 40 Gb/s packets with 2.5 Gb/s header erasure/rewriting using all-fibre wavelength converter," Electron. Lett. 36, 345-347 (2000).

G. Puerto, B. Ortega, A. Martínez, D. Pastor, M. D. Manzanedo, J. Capmany, "Scalability of 10 Gb/s SCM optical label swapping networks featuring 2R multistage intra-node regeneration," Electron. Lett. 42, 712-714 (2006).

IEEE Commun. Mag. (1)

D. K. Hunter, I. Andonovic, "Approaches to optical internet packet switching," IEEE Commun. Mag. 28, 116-122 (2000).

IEEE J. Sel. Areas Commun. (2)

S. J. B. Yoo, F. Xue, Y. Bansal, J. Taylor, Z. Pan, J. Cao, M. Jeon, T. Nady, G. Goncher, K. Boyer, K. Okamoto, S. Kamei, V. Akella, "High-performance optical-label switching packet routers and smart edge routers for the next-generation internet," IEEE J. Sel. Areas Commun. 21, 1041-1051 (2003).

P. Gambini, M. Renaud, C. Guillemot, F. Callegati, I. Andonovic, B. Bostica, D. Chiaroni, G. Corazza, S. L. Danielsen, P. Gravey, P. B. Hansen, M. Henry, C. Janz, A. Kloch, R. Krähenbühl, C. Raffaelli, M. Schilling, A. Talneau, L. Zucchelli, "Transparent optical packet switching: Network architecture and demonstrators in the KEOPS project ," IEEE J. Sel. Areas Commun. 16, 1245-1259 (1998).

J. Lightw. Technol. (2)

M. Y. Jeon, Z. Pan, J. Cao, Y. Bansal, J. Taylor, Z. Wang, V. Akella, K. Okamoto, S. Kamei, J. Pan, S. J. B. You, "Demonstration of all-optical packet switching routers with optical label swapping and 2R regeneration for scalable optical label switching network applications," J. Lightw. Technol. 21, 2723-2733 (2003).

A. Carena, M. D. Vaughn, R. Gaudino, M. Shell, D. J. Blumenthal, "OPERA: An optical packet experimental routing architecture with label swapping capability ," J. Lightw. Technol. 16, 2135-2145 (1998).

Other (3)

A. Martínez, M. Manzanedo, G. Puerto, D. Pastor, B. Ortega, J. Capmany, T. Banky, G. Kovacs, T. Berceli, M. K. Popov, P.-Y. Fonjallaz, "Recent advances on optical label swapping techniques. An approach to the final results of IST–LABELS project," Proc. ICTON (2006) pp. 51-56.

A. Martinez, G. Puerto, D. Pastor, J. Capmany, B. Ortega, M. Popov, P. Y. Fonjallaz, L. Pierno, M. Varasi, T. Banky, T. Berceli, "Parallel label generation and rewriting configuration for 10 Gb/s/channel DWDM–SCM label swapping using FBG arrays," Proc. IEEE LEOS Conf. (2004) pp. 847-848.

W. Wang, L. Rau, D. Blumenthal, "All-optical label switching/swapping of 160 Gbps variable length packets and 10 Gbps labels using a WDM Raman enhanced-XPM fiber wavelength converter with unicast/multicast operation," Optical Fiber Commun. Conf. (OFC) Los AngelesCA (2004) Paper PDP8.

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