SSTP: an 802.1s extension to support scalable spanning tree for mobile metropolitan area network

Requirements for broadband mobile communications suggest the importance of the metropolitan area network (MAN) in beyond 3G integration. Beyond 3G accommodates radio systems including 3G, 4G and wireless LANs, and operates all-IP networks. Ethernet technology has become a suitable solution to cover all access points of various radio systems because of its simplicity and flexibility. A MAN by Ethernet, however, still has issues of scalability. The spanning tree protocol requires so much time to rebuild the tree in a change of topology, especially in a large MAN, and eventually causes much packet loss, which is intolerable to real time applications, such as voice and video, during reconfiguration. We propose a scalable spanning tree protocol (SSTP) to realize fast rebuilding of a spanning tree by applying a concept of regions and configure its parameters automatically. Our evaluation shows that SSTP is a solution for future mobile communication networks consisting of thousands of bridges.

[1]  Alexandru Petrescu,et al.  Network mobility in beyond-3G systems , 2003, IEEE Commun. Mag..

[2]  Claude Castelluccia,et al.  Hierarchical Mobile IPv6 Mobility Management (HMIPv6) , 2005, RFC.

[3]  Federico Silla,et al.  LSOM: A Link State protocol Over MAC addresses for metropolitan backbones using Optical Ethernet switches , 2003, Second IEEE International Symposium on Network Computing and Applications, 2003. NCA 2003..

[4]  Fumiyuki Adachi,et al.  Scalable Mobile Ethernet and fast vertical handover , 2004, 2004 IEEE Wireless Communications and Networking Conference (IEEE Cat. No.04TH8733).

[5]  Rajeev Koodli,et al.  Fast Handovers for Mobile IPv6 , 2001, RFC.

[6]  Klara Nahrstedt,et al.  STAR: a transparent spanning tree bridge protocol with alternate routing , 2002, CCRV.

[7]  Chandramohan A. Thekkath,et al.  SmartBridge: a scalable bridge architecture , 2000, SIGCOMM.

[8]  Mario Gerla,et al.  Efficient building method of multiple spanning tree for QoS and load balancing , 2003, GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489).

[9]  Fumiyuki Adachi,et al.  The Overview of the New Generation Mobile Communication System and the Role of Software Defined Radio Technology , 2003 .

[10]  Mario Gerla,et al.  QoS-aware multiple spanning tree mechanism over a bridged LAN environment , 2003, GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489).

[11]  Yasushi Yamao,et al.  Network architecture for mobile communications systems beyond IMT-2000 , 2001, IEEE Wirel. Commun..