SDN and PCE implementations for segment routing

Author

Sgambelluri, A. ; Paolucci, F. ; Giorgetti, A. ; Cugini, F. ; Castoldi, P.

Author_Institution

Scuola Superiore Sant´Anna, Pisa, Italy

fYear

2015

fDate

June 30 2015-July 2 2015

Firstpage

1

Lastpage

4

Abstract

Segment Routing (SR) technology has been proposed to enforce effective routing strategies without relying on signaling protocols. In this paper, two SR implementations are presented and successfully demonstrated in two different network testbeds. The first implementation focuses on a software defined networking (SDN) scenario where nodes consist of OpenFlow switches and the SR Controller is a specifically designed enhanced version of an OpenFlow Controller. The second implementation includes a novel Path Computation Element (PCE) scenario where nodes consist of commercially available IP/MPLS routers and the SR Controller is a new extended version of a PCE solution. Both implementations have been successfully applied to demonstrate dynamic traffic rerouting. In particular, by enforcing different segment list configurations at the ingress node, rerouting is effectively achieved with no packet loss and without requiring the use of signaling protocols.

Keywords

Computer architecture; IP networks; Multiprotocol label switching; Peer-to-peer computing; Routing; Routing protocols;

fLanguage

English

Publisher

ieee

Conference_Titel

Networks and Optical Communications - (NOC), 2015 20th European Conference on

Conference_Location

London, United Kingdom

Type

conf

DOI

10.1109/NOC.2015.7238607

Filename

7238607