Post on 18-Jun-2018
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HISILICON SEMICONDUCTORHUAWEI TECHNOLOGIES CO., LTD. Page 1
HUAWEI TECHNOLOGIES CO., LTD.
TOSCA complementing NFV (Network Function Virtualization)
Shitao li
HISILICON SEMICONDUCTORHUAWEI TECHNOLOGIES CO., LTD. Page 2
Objectives
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Removing tightly coupled network function’s software from underlying hardware
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Members Community
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HISILICON SEMICONDUCTORHUAWEI TECHNOLOGIES CO., LTD. Page 4
NFV organization Phase 1 Vs. Phase 2Chairman
Working Groups
INF
SWA
MANO
REL
Expert Group
PER
PoC
SEC
TSC NOC
Chairman
Working Groups
IFA
EVE
TST
REL
SEC
TSC NOC
MANO
SWA
REL
INF
SEC
PER
Phase 1 structure Phase 2 structure
IFA (interface and Architecture)
EVE(evolution and ecosystem)
TST(Testing, implementation and open source)
REL(Reliability, availability, Assurance )
SEC(security)
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E2E Architecture
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HISILICON SEMICONDUCTORHUAWEI TECHNOLOGIES CO., LTD. Page 6
…..VNFD
General mapping: NFV NSD and VNFD to TOSCA template
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NSD(network service descriptor)
VNFD(VNF descriptor)
VDU(virtualisation deployment unit) …VDU …VDUVDU
Service template
Note template(defined by a nested Service template)
Note template(defined by a nested Service template)
Software component Compute component Note template
NFV TOSCA
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NSD
Service template A
Node template(nested by another service template B)VNFD Service template B
Node template (nested by another service template C)
VDU
Service template C
Node template Software component
compute component
VNFD
VDU
General mapping: NFV NSD and VNFD to TOSCA template
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NSD mapping to a service template
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Tosca service template
Could map to TOSCA plan elementGaps:
1. Vnffgd: can not map to TOSCA, may need a new node type (forwarding graph node type).
2. Virtual link: can not map to TOSCA, may need a new node type (virtual link node type).
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NSD mapping to a service template
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Tosca service template
Gaps:1. Monitoring _parameter: can not be mapped into the TOSCA
service template now, but TOSCA just start a monitoring WG, It may solve this gap problem
2. Service_Deployment_flavour: inputs?group? Or new node template
3. Pnfd: needs to consider whether TOSCA can be used to describe physical devices.
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VNFD mapping to a service template
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Gaps:1. Version:this version represents the
version of software used in this VNF. This information might be put into the description element.
2. Virtual link: can not map to TOSCA, may need a new node type (virtual link node type).
Could map to a node template with port node type
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Can be mapped to TOSCA plan element
Gaps:1. Monitoring _parameter: can not be mapped into the TOSCA service
template now, but TOSCA just start a monitoring WG, It may solve this gap problem
2. Deployment_flavour: inputs?group? Or new node template
3. Manifeast_file: same concept as CSAR, but in the different layer
• NFV will do some changes, so manifest file can be mapped to CSAR
4. Manifest_file_security: out of scope of TOSCA
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Main gaps between NFV describer and TOSCA template
1. VNF forwarding graph and virtual link› Need a solution(Now, it discussed at networking ad hoc group)
2. Deployment flavour› Need a solution
3. Monitoring parameter› Can be cooperated with Monitoring Group
4. Pnfd› Needs to consider whether TOSCA can be used to describe physical device.
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HISILICON SEMICONDUCTORHUAWEI TECHNOLOGIES CO., LTD. Page 13
Output white paper
1. Fullfil all the gaps between TOSCA and NFV› E.g, introduce NFV specific new node types,
2. Examples for NSD, VNFD, VDU, VLD and VNF forwarding graph using TOSCA
3. Other recommendations to NFV
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Thank youwww.huawei.com