How to Support Multi-AZs in NFV Services

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Kento KAWAKAMi, Verda Network Development Team, LINE Corporation How to Support Multi-AZs in NFV Services

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l l (Kento KAWAKAMi) l LINE Corporation l ITSC Network Development Team l l 2019~LINE () DNS Service NAT Service, LB Service, Overlay NW ABOUT ME

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Agenda • Our NFV Services • Multi-AZs Support Policy • How to support Multi-AZs in our NFVs • Conclusion

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Our Services A C C B 4

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Our Services: NFV A C C B 5

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Our NFV Services: DNS DNS l DNS CacheDNS Auth l IP ANYCAST 6 IP ANCYAST

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Our NFV Services: Load Balancer DNS l DNS CacheDNS Auth l IP ANYCAST Load Balancer l L4LBL7LB l L4LBIP ANYCAST 7 IP ANCYAST

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Our NFV Services: NAT DNS l DNS CacheDNS Auth l IP ANYCAST Load Balancer l L4LBL7LB l L4LBIP ANYCAST NAT l InternetNAT l NATD-PlaneIP ANYCAST 8 IP ANCYAST

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• AZ$.-:9%7 • Default :9/,AZ:904 • # &86:9 • '2 3 AZ 5)+ • 1( AZ :9* • '2 D-Plane"!# 5) Multi-AZs Support Policy in NFV Services 9

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Our NFV Services DNS l DNS CacheDNS Auth l IP ANYCAST Load Balancer l L4LBL7LB l L4LBIP ANYCAST NAT l InternetNAT l NATD-PlaneIP ANYCAST 10

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Our NFV Services DNS l DNS CacheDNS Auth l IP ANYCAST Load Balancer l L4LBL7LB l L4LBIP ANYCAST NAT l InternetNAT l NATD-PlaneIP ANYCAST 11

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DNS: Architecture VM !' l DNS. &VM %+!$ l )#VM +HV BGP / , l Full L3!$ l VMHV-DNSVIP , l VM( BGP Daemon*" 12

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13 JANOG48: Refresh DNS Infrastructure with Modern Datacenter Network

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DNS: Multi-AZs Support(1/2) 2AZDNS%( ". l DNSVMA= 3E l AZ7> VM68 #'- AZ),*.BGPD l DNS /32 VIP5C l DNS$+&!B; AZ?4F5C/> <1 9:0@ 14

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DNS: Multi-AZs Support(2/2) 7AZDNS!(,#%2 l DNSVMPG8T l AZ=I VM?LJ5KHDNS Server Routing; l DNS!*#?@DNSL< Check

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• AZ,!( &- ,!1 • Full L3 NetworkVIP%* • '"$02 • BGP #3)+ ./"$02 Multi-AZs Support in DNS 16

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Our NFV Services DNS l DNS CacheDNS Auth l IP ANYCAST Load Balancer l L4LBL7LB l L4LBIP ANYCAST NAT l InternetNAT l NATD-PlaneIP ANYCAST 17

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LB: Architecture L4LB l l LB Prefix l IP ANYCAST L7LB l k8sPods l L4LB 18

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• !!"" • LB DC$!0,#/+NFV • (*)!2'%. • " • LB DNS 1!- • "" !#/+& LB: AZ Support Consideration Points 19

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LB: Traffic Balancing(1/2) AZ>!( 8 !&(("( 20 l DC,&#0- l '(/59 A:< l AZ3*59LBDown 4. =)AZBackendDB l AZ>$DB274. %Capacity+E?C l LB6;@1

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LB: Traffic Balancing(2/2) AZ!#( 0$ 21 l AZ%/41 l ( AZ LB "+ ',53. 2*- l DC ) l Latency).&

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AZ Pros Cons • DCA !,7% *6 • DCA @& "# /- • $AZ Capacity4? 2>8 • ' AZ LB(@ # "$ #+:*6 • AZ) ! 1$ 4?2> • LB AZB05 !# #;9 • LB =C#"$ # 2> • DCA !;9 • DCA @&"#$ /-.<3 22

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AZ Pros Cons • DCA !,7% *6 • DCA @& "# /- • $AZ Capacity4? 2>8 • ' AZ LB(@ # "$ #+:*6 • AZ) ! 1$ 4?2> • LB AZB05 !# #;9 • LB =C#"$ # 2> • DCA !;9 • DCA @&"#$ /-.<3 23

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LB: Service-in l Old Network LB l AZ LB 24

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LB: Service-in $4 l Old NetworkLB%6+5 l AZ!#LB&3/27+5 )' l %6&3(*1/ +0, 2. 1- l 1 LB90Gbps"7 25

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LB: Service-in $-&#9U l Old NetworkLB:XDV l AZ68LB=T /27DV B1? $-&#% $ l :X=T4AC1M) $$-&# DN F5RI2QH l 1 LB- !90Gbps7Y 3<@ l NW"+(.,/>B3< l AZP$-&#S J; 0K' /EWGL 26 AZP:X0O !*/' /

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• VerdaNFVN+1). 4' • DNS • BGP IP ANYCAST • LB • BGP + L4L702). • +7).!"5$). • & *AZ4'* LINE/1%6-, • LINE"/1 (8 #34' Conclusion 27