Transforming Networks to All-IT Network with OCP and Open Networking

Transcription

1 Transforming Networks to All-IT Network with OCP and Open Networking Junho Suh

2 Content All-IT Network Building All-IT Network with OCP Powered Networking Porting Indigo on Wedge + Open Network Linux (ONL) Porting OpenSwitch on Wedge Lesson Learned & Proposal Making Server Switch with OCP technologies 2

3 SKT 5G Network Vision Evolving a Telcom operator network into an IT convergence network 2G/3G/4G N/W All-IT Network Mobile Network Data Center IP IP IP IP LTE LTE EPC Server Farm ATM IP IP WCDMA 3G PS(Data) TDM CDMA 2G/3G CS(Voice) Data Center Silo Network Convergence Cloud RAN Media vepc Virtualization IoT Cloud Core SDN/NFV Programmability Open H/W and S/W 3

4 Agenda All-IT Network Building All-IT Network with OCP Powered Networking Porting Indigo on Wedge + Open Network Linux (ONL) Porting OpenSwitch on Wedge Lesson Learned & Proposal Making Server Switch with OCP Technologies 4

5 Building Open Networking with OSS Neutron API REST Handler Initial Prep. ARP DHCP L3 Routing L2 Switching SONASimplified Overlay Networking Architecture L2/L3 networking Scalable Edge GW with H/W acceleration OpenStack integration (i.e., Neutron APIs) OpenFlow/OVSDB protocols C-Node C-Node C-Node VM VM VM VM VM VM OVS OVS OVS Edge GW Gateway Gateway OVS-DPDK OVS- OVS- DPDK DPDK OpenFlow Data Path features Multiple tables Group tables Flow-based metering and QoS control vnet #1 vnet #2 vnet #3 5

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7 Making Wedge Switch to support OpenFlow Wedge x86 Rangeley CPU board Broadcom Trident2 (via OpenNSL) Open Network Linux (Linux v3.2) FBOSS for forwarding agent Porting Indigo on Wedge + ONL Platform independent modules Platform dependent modules OF-DPA Open Network Linux 7

8 Alternative option - OpenSwitch Comparison OpenSwitch Open Network Linux Build System Yocto Debian like build system with Python + Bash Forwarding Agent Open vswitch! L2/L3 networking! OpenFlow 1.3+ FBOSS! L2/L3 networking Indigo! OpenFlow 1.3+ System State DB OVSDB FBOSS SDK Library OpenNSL OpenNSL HAL for Platform None ONLP Configuration mode l CLI, REST, Chef, Puppet, Ansible, OVS DB protocol (RFC7047) Thrift RPC 8

9 Dependency in ASIC Kernel SDK Porting & rebuilding OF-DPA source code for Wedge platform No source code is available without NDA No information on how much efforts do we need Usually vendor does! Software pipeline that implements the OpenFlow pipeline Workaround Try to implement OF-DPA like functionalities with OpenNSL Port implementation at minimal functionalities is fine E.g., port information, port statistics, Flow related features can t be implemented, except L2/L3 functions E.g., multiple tables, group tables, flow entry statistics, 9

10 Dependency in Platform H/W Independent Credit: OpenSwitch Community H/W dependent x86 Rangeley CPU Broadcom Trident 2 Linux Kernel v

11 Interested in Vendor Agnostic Interface Layer A broad spectrum of ASIC chips and platforms we already use ASIC vendors: Intel, Broadcom, Platforms: Accton, Edge Core, HP, Altoline How do we remove vendor dependencies? Vendor agnostic API layer is under review in OCP community SAI ACPI 11

12 Call for Collaboration on SAI SAIService Abstraction Interface Still focusing on legacy networking features OpenFlow 1.3+ features Multiple tables Group tables for ECMP like Fabric management Flow-based metering and QoS control for E2E QoS guarantee in future 5G requirement 12

13 Agenda All-IT Network Building All-IT Network with OCP Powered Networking Porting Indigo on Wedge + Open Network Linux (ONL) Porting OpenSwitch on Wedge Lesson Learned & Proposal Making Server Switch with OCP technologies 13

14 Server Switch Use Case Replace dedicated network appliance boxes to virtualized network functions Designed for NFV use cases SONA Spine Spine Spine TOR LB Network Nodes ToR LB VPN FW SONA Fabric Scalabl e GW Vnet Mgmt. Leaf Leaf Leaf G/W G/W G/W Network Nodes FW, VPN Data backup Server Farm Space Efficiency 14

15 Server Switch H/W Spec Server Switch Modular design 2X power supplies Intel Red Rock Canyon (RRC) Switching silicon 4X PCIe G3 x8 (total 200Gbps) x36 1G/2.5G/10G x24 25G x9 40G x6 100G Dual Intel Xeon E v3 CPU (Haswell) 4X 2.5` SATA SSD PCIe G3 x8 GF SFP+ : Port0~7 Dual Xeon CPUs PCIe G3 x8 GF SFP+ : Port8~15 PCIe G3 x8 GF Intel FM10000 PCIe G3 x8 GF SFP+ : Port16~23 Control Lane PCIe x1 GF PSU#1 PSU#2 Z-PACK Header Intel Rangeley 15

16 Testing Basics N/W functions L2/L3 NAT DHCP DNS N/W Monitoring Tested! NFV features L4/L7 Load Balancer Firewall DDoS Mitigation VPN IDS/IPS Need to test N/W SLA Analysis 16

17 Future Plan ONIE support OpenBMC support Other ASIC chips support (e.g., Broadcom Tomahawk) 17

18 Call for Collaboration / Contribution H/W test & validation collaboration Use case study Contribution 18

19 Recap Vendor Agnostic Interface Layers SAI OF-DPA support Want contribution to Server Switch spec 19

20 Thanks 20

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