Hi Martin, all, Overall the charter looks fine. I agree to some of the earlier comments on 1. discussing unifying different testbeds 2. Adding a problem statement 3. Adding more research themesAlso, I'd propose to (4) have some state of the art document that overviews current solutions to a wide range of techniques for virtualizing network resources.
Cheers, Jukka Martin Stiemerling wrote:
Hi all, Here is the updated charter proposal. Let me know your comments. Martin Draft charter for the Virtual Networks Research Group VNRG) proposal VERSION: 2009-05-22 0800 UCT Recent developments in networking are aiming at better utilizing infrastructure in terms of reusing a single physical or logical resource for multiple other network instances, or to aggregate multiple these resources to obtain more "functionality". These resource can be network components, such as, for example, routers, switches or hosts, and also services, such as, for example, name mapping systems. Typically, this is referred to as Virtual Networks, where a resource is either re-used for multiple networks or multiple resources are aggregated for virtual resource. Important properties of Virtual Networks are i) the level of participation of each resource and ii) the clear separation of any virtual network to allothers. Each resource can be sliced so that it can be part of multiple Virtual Networks, but on the other hand does virtualization guarentee theclear separation of each network, so that actions in one network do not affectthe operation of any other network. However, in the network community, Virtual Networks is a very broad term, ranging from running multiple wave lengths over a fiber, MPLS, virtual routers, to overlay systems. This leads to deployment of single technologies in parts of the Internet or other IP-based networks, but lacks a common understanding of what virtualized networksis causing to IP-based networks, or how Virtual Networks is applied in favorable way. This leads to the introduction of virtualization in an uncoordinated way between the various players, such as network operators, vendors, service providers and testbed providers (e.g. GENI, FEDERICA, etc)without considerations about the overall impact on the system level. The Virtual Networks Research Group (VNRG) provides a forum for interchange of ideas among a group of network researchers with an interest in network virtualization in the context of the Interent and also beyond the current Internet.The RG works on a set of principles of virtual networks that a single physical resource can be re-used by multiple entities with a clear separation between the actions taken by the single entities. Virtualization delivers an abstraction to the user (i.e., not necessarily a human but a service orwhatever) referring to the decoupling from the physical resource, i.e., the abstraction is not bound to a single resource but can be relocatedbut is a logical structure. Virtualization also offers recursion, i.e., an already virtualized network can again include virtual networks. The group will address the following research challenges: - Consider a whole system for virtualized networks and not only single components or a limited set of components;- Identifying architectural challenges resulting from virtual networks; - Recursive network management of virtual networks;- Emerging technological and implementation issues. Web site: http://user.informatik.uni-goettingen.de/~stiemer/nvrg/Mailing list: Open mailing list to anybody, just needs signing up with the listlist's address: nvrg at listserv.gwdg.de signing up: https://listserv.gwdg.de/mailman/listinfo/nvrg stiemerling at nw.neclab.eu NEC Laboratories Europe - Network Research DivisionNEC Europe Limited | Registered Office: NEC House, 1 Victoria Road, London W3 6BL | Registered in England 2832014
-- Jukka MJ Manner, Professor, PhD. Phone: +358+(0)9+451 2481 Helsinki University of Technology Mobile: +358+(0)50+5112973 Department of Communications Fax: +358+(0)9+451 2474 and Networking (Comnet) Office: G320 (Otakaari 5A) P.O. Box 3000, FIN-02015 TKK E-mail: jukka.manner at tkk.fi Finland WWW: www.comnet.tkk.fi
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