Re: [NFVCON] virtualization of network functions makes the management different
"Songhaibin (A)" <haibin.song@huawei.com> Tue, 27 May 2014 09:01 UTC
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From: "Songhaibin (A)" <haibin.song@huawei.com>
To: Barbara Martini <barbara.martini@cnit.it>, "nfvcon@ietf.org" <nfvcon@ietf.org>, "karagian@cs.utwente.nl" <karagian@cs.utwente.nl>
Thread-Topic: [NFVCON] virtualization of network functions makes the management different
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Date: Tue, 27 May 2014 09:00:50 +0000
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Subject: Re: [NFVCON] virtualization of network functions makes the management different
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Hi Barbara, Best Regards! -Haibin > -----Original Message----- > From: Barbara Martini [mailto:barbara.martini@cnit.it] > Sent: Monday, May 26, 2014 8:38 PM > To: nfvcon@ietf.org; karagian@cs.utwente.nl; Songhaibin (A) > Subject: Re: [NFVCON] virtualization of network functions makes the > management different > > Hi Haibin, Georgios, > > I do agree with you. Also, I think that the fact we can have agile runtime > management and disposal of virtual network functions provide the capability of > performing much more effective optimizations while addressing different > management targets. For instance, the virtual network functions can be > initially disposed according to a specified optimization targets, then easily > rearranged based on changing conditions or modified targets. The optimization > targets may be for example the minimization of used physical server hosting > virtual network functions or, on the contrary, the balancing of used physical > servers. [Haibin] This example is very interesting. I think we can get some very useful requirements from agile runtime management, especially from the NFV consumer perspective. The policies at least include load-balancing policy, automatic scale-out/in policy, and etc. I'm very interested in the NFV management and orchestration plane north bound interactions with VNF providers and consumers. But in the south-bound to the specific infrastructure devices, the management and orchestration plane has to translate those requirements into detailed configuration commands/protocol interactions that have been supported by the existing devices, which is more about implementation issue IMO. > Moreover, the instances of virtual network function can be dynamically scaled > up/down in a agile way in order to assure the required capabilities while > avoiding overprovisioning. [Haibin] Fully agree. >Finally, in combination with software-defined > networking the traffic can be dynamically steered across virtual network > functions on per-service basis or even on per-tenant basis thanks to high level > of programmability of network nodes. > [Haibin] Definitely this kind of combination with SDN is very attractive. One use case that I know is when you add a new VNF instance that's agnostic to the applications, you need to send a command to its neighbor switch, so as to make it split a portion of the traffic to the new VNF instance, based on some policies. Regards! -Haibin > Best regards, > > Barbara > > > Il 26/05/2014 7.17, karagian@cs.utwente.nl ha scritto: > > Hi Haibin, > > > > Yes I agree with you! > > In particular, the dynamic lifecycle management of the virtual network > functions (e.g., deploy, provision, operation and runtime management, disposal) > is very different from the (almost) static configuration of conventional network > appliances. > > > > Best regards, > > Georgios > > > > > > ________________________________________ > > Van: NFVCON [nfvcon-bounces@ietf.org] namens Songhaibin (A) > > [haibin.song@huawei.com] > > Verzonden: vrijdag 23 mei 2014 5:02 > > Aan: nfvcon@ietf.org > > Onderwerp: [NFVCON] virtualization of network functions makes the > management different > > > > Hi guys, > > > > I'm thinking the virtualization of network functions makes the management > different from the conventional network appliances, for example, when > compared with hard appliances, virtual network functions are easy to > install/update/delete, or migrate from one place to another (for something like > virtual residential gateway). And virtual network functions can also be open to > the network function consumers. What are other differences in your opinion? > > > > Best Regards! > > -Haibin > > > > _______________________________________________ > > NFVCON mailing list > > NFVCON@ietf.org > > https://www.ietf.org/mailman/listinfo/nfvcon > > _______________________________________________ > > NFVCON mailing list > > NFVCON@ietf.org > > https://www.ietf.org/mailman/listinfo/nfvcon
- [NFVCON] virtualization of network functions make… Songhaibin (A)
- Re: [NFVCON] virtualization of network functions … karagian
- Re: [NFVCON] virtualization of network functions … Barbara Martini
- Re: [NFVCON] virtualization of network functions … Songhaibin (A)
- Re: [NFVCON] virtualization of network functions … Songhaibin (A)
- Re: [NFVCON] virtualization of network functions … karagian