nova networking to neutron: it‘s time for sdn – hi london!

CONFIDENTIAL-SOLELYFORAUTHORIZEDPERSONSHAVINGANEEDTOKNOWPROPRIETARY–USEPURSUANTTOCOMPANYINSTRUCTION

©2016Nokia.Allrightsreserved.NuageNetworksisaNokiaventure.

NovaNetworkingtoNeutron:It‘sRmeforSDN–HiLondon!

@nuagenetworks

[email protected]



Nova-NetworkisDEPRECATED!!!h;ps://review.openstack.org/#/c/310539/

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Novanetworkisnowdeprecated.BasedontheresultsofthecurrentOpenStackUserSurveylessthan10%ofourusersremainonNovanetwork.ThisisthesignalthatitisRmemigratetoNeutron.NonewfeatureswillbeaddedtoNovanetwork,andbugswillonlybefixedonacasebycasebasis.



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hcp://docs.openstack.org/openstack-ops/content/nova-network-deprecaRon.html

TheBadNews:ThereisnoCleanUpgradePickaControlPlane/LearntheOPSGUIDE!

hcp://docs.openstack.org/openstack-ops/content/openstack-ops_preface.html

InstalltheControlPlane/NeutronDBNodeorSDN

InstalltheComputeDataPath/OVS/LibvirtUpdate

hcp://docs.openstack.org/liberty/networking-guide/migraRon-nova-network-to-neutron.html

VirtualMachine



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…andbasicallyjoinOpenStackOperatorshcps://wiki.openstack.org/wiki/OperaRonsIrc:#openstack-operatorsOpenStackOperatorsdiscussionchannel



CurrentnetworkingArchitecturesinOpenStack

WhyOpenStackNetworkingandNova-NetworkandNeutron/SDN

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OVSPluginvs.SDNNuage(insertedonKVMHypervisors)NeutronDatapathonCompute–SDNInserWon

GREEncapsulated

br-int

br-tun

patch-tun

patch-int

PortVLAN:10 PortVLAN:20

VM1TenantA

VM2TenantA

VM3TenantB

eth0eth0eth0

qbra

qvba

vneta

qvoa

qbrb

qvbb

ventb

qvob

qbrc

qvbc

vnetc

qvo

gre-10.0.0.1

eth0

TAPDevice

vethpair

LinuxBridge

OpenvSwitch

ConfiguredbyNovaCompute

ConfiguredbyNeutronL2Agent

o  Tenantswillbe

separatedbyinternalassignedVLANS

o  VLANSwillbemappedegresstowardsGREtunnelswhichareuniquebytunnelID

VM1TenantA

VM2TenantA

VM3TenantB

eth0eth0eth0

tapa tapb tapc

alubr0

VXLANEncapsulated

eth0

PolicyDrivenConfiguraWonfrom

NuageVSP

NeutronOVSDatapath(supportsL2only)

NuageDatapath(supportsdistributedL2,L3,FloaRngIP,…)

PHYPort



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DatapathComparetoNeutron+Nuage

br-intint-br-ext

VM1TenantA

VM2TenantA

VM3TenantB

eth0eth0eth0

qbra

qvba

vneta

qvoa

qbrb

qvbb

vnetb

qvob

qbrc

qvbc

vnetc

qvoc

TAPDevice

vethpair

LinuxBridge

OpenvSwitch

VM3TenantB

eth0

qbrd

qvbd

vnetd

PHYPort

qvod

br-ext

phy-br-ext

InternalRouterNamespace

qr-f qr-g

IP IP IP IP

IP IP

qr-fqrouter-yInternalRouterNamespace

qr-h qr-jIP IP

qr-n qrouter-z

FloaRngIPNamespace

qfloat-x qf-nqr-m

qf-x

br-tun

int-br-tun1

int-br-tun1

FlowTableentry

FlowTableentry

DVRAGENT(EnhancedL3

Agent)

PrivateNetwork

eth1

PublicNetwork

eth0

Ext-IP

alubr0VRS

(SingleOVSbridge)

o  SingleOVSBridgeo  IsFlow-Basedo  PerformsFirewalling,

Switching,RouRng,NAT,…

o  ProcessesARP,DHCPLOCALLY

o  NoDedicatedNetworkNodeforo  non-DVRcase:

RouRng,DNAT,SNAT,DHCP

o  DVRcase:SNAT,DHCP



ComputeNodeComputeNode

ComputeNode NetworkNode

br-int

qbr..

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LinuxBridgeInterfacesareGoneNeutronL3Datapath

VM1TenantA

VM2TenantA

A Q

B

C

qbr..

R

S

D T

br-tun

E

F

G

br-tunH

br-intJ

I

M O

dhcprouter

PN

K

br-ext L

ML2OVS/NetworkNode

VM1TenantA

VM2TenantA

A B

VM1TenantA

VM2TenantA

C D

alubr0 alubr0

VRS-GSolwareGW

alubr0

HardwareGW

alubr0

VXLAN VXLANVXLAN

VXLAN

NuageVSP



NeutronServer

RabbitMQ

L3Agent

OVSAgent

MetadataProxy

MetadataAgent

Keepalived

OVS

dnsmasq

NetworkNode

OVSAgent

OVS

ComputeNode

RabbitMQ

MySQL

NuageArchitectureDifferenWaWono  NeutronrequireshighDatabasereadandwriteoperaRonsandMessaging

o  SincethereisNOseparatecontrolplane,Neutronserverhastodealwitheverycomputenodewithoutanyoffload

o  NodatabaseinquirycachesupportedfortheDatabasewhichtremendouslyincreasedDatabasereadpressure

o  SQLAlchemydesigninneutroncodeaddsDatabasepressureandMetadatacachinginefficiency



Demo/QnA



ThenewlyannouncedvspkandassociatedtoolsarenowavailableonGitHubandPIP:hcps://github.com/nuagenetworksBlogs:hcps://filipv.net/hcp://nuagenetworks.github.io/

NuageNetworksCommunityForums



AboutNuageNetworks§  NuageisaEuropeanstartupwithofficesintheSiliconeValley

§  AnNokiabackedventurefocusedondatacenterandbranchofficenetworkevoluRonfortheSolwareDefinedCloudCompuRngWorld

§  CreaRonofanAbstracRon&AutomaRonlayerbetweennetworkingdecouplingHardware

§  APIandPolicynetworkingdesignreflecRngbusinessdirecRves,notnetwork

§  AcRveinmanydiverseNetworkingForumsandOpenSourceProjects



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THANKYOULONDON!

nova networking to neutron: it‘s time for sdn – hi london!

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