@inproceedings{0d36cee8bc604889839ee52a0024d882,
title = "SCTP switchover performance issues in WLAN environments",
abstract = "The increased number and diversity of underlying networks have made transparent network migration a necessity. Through its support for multi-homing the Stream Control Transmission Protocol (SCTP) enables seamless network mobility by abstracting multiple underlying physical paths into a single end-to-end association. One of these paths is selected as the primary. When a number of retransmission failures occur on the primary path, switchover is initiated to a secondary path. The number of retransmission attempts before switchover is initiated can be configured; however, the delay between each retransmission is managed internally in SCTP using a Retransmission TimeOut (RTO) value. This paper shows that the current SCTP mechanism for calculating RTO values is inappropriate in WLAN environments, since increased Round Trip Times (RTT) significantly distort RTO calculations. Experimental and simulated results indicate that SCTP behaves in a counterintuitive manner which allows more time for switchover as network conditions degrade: delays of up to 187 seconds can be experienced before switchover occurs. We show that additional SCTP parameters need to be carefully configured in order to reduce this switchover delay to a more acceptable level.",
keywords = "Heterogeneous networks, SCTP, Switchover, WLAN",
author = "Sheila Fallon and Paul Jacob and Yuansong Qiao and Liam Murphy and Enda Fallon and Austin Hanley",
year = "2008",
doi = "10.1109/ccnc08.2007.131",
language = "English",
isbn = "1424414571",
series = "2008 5th IEEE Consumer Communications and Networking Conference, CCNC 2008",
pages = "564--568",
booktitle = "2008 5th IEEE Consumer Communications and Networking Conference, CCNC 2008",
note = "2008 5th IEEE Consumer Communications and Networking Conference, CCNC 2008 ; Conference date: 10-01-2008 Through 12-01-2008",
}