Protection of RPR strict order traffic

Author

Kvalbein, Amund ; Gjessing, Stein

Author_Institution

Simula Res. Lab., Oslo

fYear

2005

fDate

18-18 Sept. 2005

Lastpage

6

Abstract

Resilient packet ring (RPR, IEEE 802.17) is designed with a protection mechanism aiming at restoring traffic on the ring within 50 ms in case of a link or node failure. However, the total experienced disruption time often exceeds this if strict order delivery of packets is required, since a 40 ms (configurable from 10 ms to 100 ms) topology stabilisation timer is used to avoid packet reordering. In this article, we present three alternative ways to avoid packet reordering for strict order traffic in RPR networks. The three suggested methods are discussed analytically, and simulations are used to compare their performance. Our simulation results suggest that the new methods give up to 90% reduction in packet loss during a failure situation compared to the current RPR standard

Keywords

computer network reliability; optical fibre networks; telecommunication network topology; telecommunication traffic; IEEE 802.17; RPR strict order traffic; network topology; protection mechanism; resilient packet ring; Analytical models; Bandwidth; Communication system traffic control; Laboratories; Network topology; Performance analysis; Protection; Telecommunication traffic; Traffic control; Wide area networks; Packet reordering; Resilient Packet Ring; protection;

fLanguage

English

Publisher

ieee

Conference_Titel

Local and Metropolitan Area Networks, 2005. LANMAN 2005. The 14th IEEE Workshop on

Conference_Location

Crete

Print_ISBN

0-7803-9565-4

Type

conf

DOI

10.1109/LANMAN.2005.1541529

Filename

1541529