Enhancement of failover using application layer watchdog and SCTP heartbeat in diameter

  • Authors:

  • Sang Keun Yoo;Hyun Gon Kim;Seung Won Sohn

  • Affiliations:

  • ETRI, Information Security Technology Division, Yuseong-Gu, Daejeon, Korea;ETRI, Information Security Technology Division, Yuseong-Gu, Daejeon, Korea;ETRI, Information Security Technology Division, Yuseong-Gu, Daejeon, Korea

  • Venue:
  • CIC'02 Proceedings of the 7th CDMA international conference on Mobile communications
  • Year:
  • 2002

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Abstract

This paper proposes enhanced failover for Diameter-based AAA system. Diameter application layer watchdog algorithm enables failover from a server that has failed. SCTP heartbeat is used to perform failover between interfaces. This paper adopts both of them to provide efficient failover by inspecting state of connection with peer as well as state of Diameter application of peer. Proposed failover method that enables Diameter node to use alternative server as well as alternative communication path provides flexible and efficient failover to Diameter node....