Comparison of New Solutions in IP Fast Reroute

Authors

  • Jozef Papan Faculty of Management Science and Informatics, University of Zilina, Slovakia
  • Ivana Bridova Faculty of Management Science and Informatics, University of Zilina, Slovakia
  • Peter Brida Faculty of Electrical Engineering and Information Technology, University of Zilina, Slovakia
  • Michal Hraska Faculty of Management Science and Informatics, University of Zilina, Slovakia
  • Slavomir Tatarka Faculty of Management Science and Informatics, University of Zilina, Slovakia
  • Oleksandra Yeremenko Institute of V.V. Popovskyy, Department of Infocommunication Engineering, Kharkiv National University of Radio Electronics, Ukraine

DOI:

https://doi.org/10.5755/j02.eie.33863

Keywords:

Fast Reroute, OPFRR, PSFRR, LFRR, MPLS, LSP, OSPF, Post-processing, Random access

Abstract

Currently, network requirements are placed on the efficiency and size of the networks. These conditions can be ensured by modern converged networks that integrate the functions of both data and telecommunication networks. Line or router failures have always been a part of transmission networks, which is no different from converged networks. As a result of outages, which can take from ms to tens of seconds, packets are lost. These outages cause degraded transmission quality, which is undesirable when transmitting real-time multimedia services (Voice over IP, video). To solve the mentioned problems, the IETF organization has developed IP Fast Reroute mechanisms to minimise the time to restore the connection after a line or node failure and, consequently, less packet loss.

The article reviews and compares the latest IP Fast Reroute mechanisms deployed in the last three years. First, we have Optimistic Fast Rerouting, which calculates optimistic and fallback scenarios. The second is Post-processing Fast Reroute, which decomposes the network according to metrics such as load and route length. Third, Local Fast Reroute focused on low congestion and random access.

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Published

2023-04-24

How to Cite

Papan, J., Bridova, I., Brida, P., Hraska, M., Tatarka, S., & Yeremenko, O. (2023). Comparison of New Solutions in IP Fast Reroute. Elektronika Ir Elektrotechnika, 29(2), 78-83. https://doi.org/10.5755/j02.eie.33863

Issue

Vol. 29 No. 2 (2023)

Section

TELECOMMUNICATIONS ENGINEERING

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