Re: [nvrg-bof] Updated charter proposal

[Joe Touch <touch at ISI.EDU>]

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Comments below...

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 all
> others. Each resource can be sliced so that it can be part of multiple 

The term should be 'virtualized', not 'sliced'. We don't talk about
slicing memory or CPUs, e.g.

> Virtual Networks, but on the other hand does virtualization guarentee the
> clear separation of each network, so that actions in one network do not affect
> the 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 networks
> is 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. 

There are other testbeds to note, e.g. CoreLab, AKARI, etc.

> 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 or
> whatever) referring to the decoupling from the physical resource, i.e., 
> the abstraction is not bound to a single resource but can be relocated
> but 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 list
> list'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 Division
> NEC Europe Limited | Registered Office: NEC House, 1 Victoria Road, London W3 6BL | Registered in England 2832014 
> 
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