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UPMT – Universal Per-application Mobility management using Tunnels Stefano Salsano - Marco Bonola -

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Presentation on theme: "UPMT – Universal Per-application Mobility management using Tunnels Stefano Salsano - Marco Bonola -"— Presentation transcript:

1 UPMT – Universal Per-application Mobility management using Tunnels Stefano Salsano - stefano.salsano@uniroma2.it Marco Bonola - marco.bonola@uniroma2.it

2 Page 2 Always best connected (ABC) ABC service concept: automatic selection of the “best” interface in the mobile device Dates back to the early 2000, but turning ABC services into reality is still a challenge: –Need to change networking equipment, existing applications, networking stacks ? –True ABC services require “per-application” mobility, typical solutions offers “per-device” mobility 3G offload renews interest in ABC concept

3 Page 3 UPMT: Universal Per-application Mobility management using Tunnels per-application independent management of connectivity (even per-flow) Key features works on existing networks supports private IP networks / NAT works with ALL existing applications no changes in the correspondent hosts implemented on Linux and Android platforms

4 Page 4 IP in UDP tunnels from the Mobile Host to the Anchor Node, one tunnel for interface The Anchor Node provides a “second level” NAT, the Correspondent Hosts are unaware of UPMT Each application can be independently sent over one of the tunnels The applications see a Virtual Interface, they are shielded from any mobility/handover issue and from loss of connectivity on the physical interfaces SIP protocol is used for mobility management signaling between Mobile Host and Anchor Node Basic principles of UPMT (see figure in next slide)

5 Page 5 Basic principles of UPMT Mobile Host (MH) Correspondent Host (CH) Anchor Node (AN) NAT 1 NAT 2 “second level” NAT IP/UDP Tunnel 2 IP/UDP Tunnel 1 Public Internet Access Networks “first level” NAT Virtual Interface

6 Page 6 UPMT scalability Mobile Host (MH) AN1 AN2 (public IPs) AN3 Public Internet Local NAT Anchor NAT Corresp. Host Anchor Node (AN) The basic scenario foresees a “centralized” Anchor Node

7 Page 7 UPMT scalability Mobile Host (MH) AN1 AN2 (public IPs) AN3 Public Internet Local NAT Anchor NAT Anchor Node (AN) 2 Corresp. Host Anchor Node (AN) Multiple Anchor Nodes can be supported…

8 Page 8 UPMT scalability Mobile Host (MH) AN1 AN2 (public IPs) AN3 Fixed Host, e.g. for example: Public Internet Local NAT Anchor NAT Anchor Node (AN) A “fixed” host with UPMT modules can play the role of the Anchor Node ! … and other over-the-top providers

9 Page 9 Mobile Host (MH) AN1 AN2 (public IPs) AN3 Public Internet Local NAT MH NAT Mobile Host (MH) Anchor Node (AN) UPMT scalability Direct Mobile Host to Mobile Host communication (work in progress!)

10 Page 10 Policies: some examples Never run “bulk transfer” applications on expensive and/or resource-limited access nets. When connected as a guest to a wifi that only provide web access, use the wifi only for the browser. For a voice call, use wifi if the quality is OK, move to 3G if the quality on wifi is bad AND the quality on 3G is better.

11 Page 11 Linux GUIs for policies and monitoring

12 Page 12 Performances MH - Mobile Host AN – Anchor Node Packets/s System level performances: the validity of kernel level implementation User level performances

13 Page 13 Linux and Android implementation The UPMT implementation is open source http://netgroup.uniroma2.it/UPMT http://netgroup.uniroma2.it/UPMT Tunneling and flow classification are implemented in kernel space for performance/scalability A UPMT Live distribution for Linux is available, it can be configured to be a Mobile Host or an Anchor Node Ported on Android (2.2 Platform), Nexus one terminal –Kernel modules ported, patch to support more network interfaces –Android image can be downloaded

14 Page 14 Business scenarios UPMT can be used in different business scenarios: Operator centric User centric Corporate Net. centric Aggregator centric Over-the-top Prov. centric

15 Page 15 Take home message To the best of our knowledge, UPMT is the only implemented solution that provides: –per-application handover –support of all legacy applications –overlay approach with no support from routers and access network –support of NAT –support of legacy correspondent host moreover, it is open source…

16 Page 16 References M. Bonola, S. Salsano, A. Polidoro, “UPMT: Universal Per- Application Mobility Management using Tunnels”, IEEE GLOBECOM 2009 M. Bonola, S. Salsano, “Achieving Scalability in the UPMT Mobility Management Solution”, Future Network & Mobile Summit 2010, 16 – 18 June 2010, Florence, Italy. M. Bonola, S. Salsano, “Per-application Mobility Management: Performance Evaluation of the UPMT Solution”, IWCMC 2011, Istanbul, Turkey, July 2011 S. Salsano, M. Bonola, “The UPMT solution”, technical report, http://netgroup.uniroma2.it/TR/UPMT.pdf

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