The Vision for the Future of Network Virtualization with VMware NSX (Q2 2016)
Debunking VMware NSX
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Transcript of Debunking VMware NSX
2
Chi sono
Andrea Mauro
• IT Architect, VCP/VCAP/VCDX-DCV, VCP/VCAP-Cloud/DT, VCP/VCIX-NV
• vExpert 2010-2015
• http://vinfrastructure.it
• @Andrea_Mauro
• it.linkedin.com/in/andreamauro
• https://about.me/amauro
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Due approcci…
Hardware Defined
Data Center (HDDC)
Any Application
HDDC Platform
Integrated x86
Integrated Storage
Vendor Specific
Network
Ve
rtic
al In
teg
ratio
n
Software Defined
Data Center (SDDC)
Any Application
SDDC Platform
Any x86
Any Storage
Any IP network
Data Center Virtualization
OR
Software
Controller
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Networking… ultima frontiera
Network Virtualization (NV)
Network Functions Virtualization (NFV)
Software Defined Networking (SDN)
OpenNetworking
OpenFlow
Leaf-Spine
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Alcune possibili definizioni
SDN’s “reason for being” was the “separation of control and data
[and] centralization of control and programmability”
• OpenFlow è un possibile protocollo tra control e data plane
NFV’s purpose was the “relocation of network functions from
dedicated appliances to generic servers”
NV is an overlay; it’s a tunnel. Rather than physically connecting
two domains in a network, NV creates a tunnel through the existing
network to connect two domains.
In contrast to SDN, in which hardware remains the driving force,
VMware network virtualization technology truly decouples network
resources from underlying hardware.
• Virtualization principles are applied to physical network infrastructure,
abstracting network services to create a flexible pool of transport capacity that
can be allocated, utilized and repurposed on demand
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Open Networking
Transforming networking with Software-Defined Networking (SDN) and
standardizing the OpenFlow protocol and related technologies
• https://www.opennetworking.org/
• Fondata nel 2011
Gli switch sono basati su hardware commodity?
• Broadcom Tridend chipset
• http://www.dell.com/us/business/p/open-networking-switches/pd
• http://whiteboxswitch.com/
Player importanti
• http://cumulusnetworks.com/
• http://www.bigswitch.com/
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Sfatiamo alcuni miti di NSX
Virtualizzazione della rete
• Possibile solo con NSX?
Distributed switch
• Possibile solo con NSX?
Distributed routing
Possibile solo con NSX?
Distributed firewall
Possibile solo con NSX?
Hybrid cloud networking?
Possibile con NSX?
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Limiti di NSX
Costo elevato
• Versioni «lite»? Bundle?
• Alternative a vCloud Network & Security?
Architettura complessa?
• Management cluster e Edge cluster
Traffico non VM?
• vMotion ha bisogno di NSX?
• iSCSI o NFS con NSX?
Complesso?
• Non più di altri sistemi
• Comunque molto VM-centric
• Gestibile con vRealize Automation & Orchestrator
Vincolato a vSphere?
• Esiste una versione multi-hypervisor
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Differenze vSphere NSX – Multi-hypervisor NSX
vSphere NSX
dvSwitch
VXLAN encapsulation
NSX edge
East-west firewalling in-kernel
distributed firewall
In-kernel distributed routing
Load balancing, VPN
capabilities
Multi-hypervisor NSX
Open vSwitch
GRE, STT, VXLAN
encapsulation
East-west firewalling by ACL
and security groups
Physical NSX gateway
appliances
Open vSwitch provides
routing capabilities
HOL-SDC-1319 - VMware NSX for
Multi-Hypervisor