Open Networking Enables Deutsche Telekom to Sail the Cloud Native Seas.pdf

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1、Open Networking Enables Deutsche Telekom Sail the Cloud Native SeasDeploymentsOpen Networking Enables Deutsche Telekom Sail the Cloud Native SeasKamran Naqvi,Principal Architect,BroadcomJens Jetzork,DevOps Engineer,Deutsche TelekomIP Fabric Broadcom Silicon based Edge-Core switchesOpen-Source Networ

2、k Operating System-SONiCBGP underlay with VXLAN EVPN based overlays to provide multi-tenancyCaters for multiple connectivity types:MCLAG Routing on the HostInter-VRF Route LeakingFlexible Management Framework facilitates Automation SpineLeafLeafLeafSpineLeafHypervisorHypervisorFRRBGP PeeringVXLAN EV

3、PN“An internal,GitOpsbased Kubernetes Cluster as a Service Platform for Network Technology(NT)Workloads almost exclusively built using open-source components.”Das SCHIFF/T-CaaS in Deutsche Telekom 150+clusters 1200+bare metal servers 6 data centers 170+OCP Accepted SONiC devices 7800+network ports 4

4、0+Apps(e.g.5GC,PCF.)Traditional Layer 2 ModelNetwork#1Network#2VLAN Kubernetes TenantCalico Full-Meshbased on BGP andIPinIP or VXLANGWVLAN/VRF combination for backbone connectivityVLAN/VXLAN for LOM and storageonlyVLAN/VXLAN for customers using SRIOV Static-Anycast-Gateway(SAG)BGP EVPN Type 2 and Ty

5、pe 5BGP unnumbered for underlay and serverBGP numbered for backboneDHCP for LOMUsed Features/ProtocolsNew Cloud VXLAN ModelNetwork#1Network#2Pod IPs per Node announced into Cluster VXLANAttaching standard hosts|Border-Leaf|Spine|Leaf|Leaf-Tbase|ServerBGPNetwork#1Network#2BGP EVPN Type 5(Cloud native

6、)Attaching SRIOV hosts|Border-Leaf|Spine|Leaf|Leaf-Tbase|ServerBGPTrunkNetwork#1Network#2BGP EVPN Type 5(SRIOV)Cross Fabric and Host communication|Border-Leaf|Spine|Leaf|Leaf-TbaseNetwork#1Network#2EVPN Type 2(MGMT)BGP EVPN Type 5(Cluster)BGP EVPN Type 2(SRIOV)|ServerNetwork OperatorNetworkOperatorL