ESTRATÉGIAS DE SDN PARA DESAFIOS REAIS DE CLOUD COMPUTING. Marcelo Molinari SE Manager Brasil and SSA

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1 ESTRATÉGIAS DE SDN PARA DESAFIOS REAIS DE CLOUD COMPUTING Marcelo Molinari SE Manager Brasil and SSA

2 Software-defined Networking in the Data Center ENABLING NEW LEVELS OF INNOVATION NETWORK VIRTUALIZATION PROGRAMMATIC CONTROL CLOUD ORCHESTRATION 5/23/ Brocade Communications Systems, Inc. Proprietary Information

3 Persistent Store Federation Brocade Network Platform Will Enable Rich Network Services FOUNDING MEMBER OF OPENDAYLIGHT OPEN SOURCE SDN CONSORTIUM Northbound Interfaces / Service s APIs (REST) base OSS platform virtual overlay mgr. VTN mgr. core network service functions forwarding topology mgr. event mgr. device mgr. service abstract. vroute r mgr. additional contributed / proprietary services service abstraction layer (plug-in mgr., capability abstractions, ) overlay / virtual SW OpenFlow I2RS BGP-LS other std. interfaces Southbound Interfaces and Protocols Open Source Consortium for Software- Physical and Virtual Infrastructure 3

4 Network Virtualization Logical Networks Logical networks eliminate physical network limitations (e.g., MAC address and VLAN limits) to facilitate any-to-any connectivity and workload mobility Non-Virtualized Environment Internet Virtualized VXLAN Environment Overlay/tunnel technologies: VXLAN Brocade VCS Ethernet fabric is a superior transport for network virtualization leading automation, efficiency and simplicity Brocade VDX data center switch ASICs are VXLANready with software support in 2013; Brocade ADX VXLAN gateway demo now VLAN Segment VLAN Segment VLAN Segment VLAN Segment Brocade VXLAN Gateway VXLAN Segment VXLAN Segment VXLAN Segment VXLAN Segment 5/23/ Brocade Communications Systems, Inc. Proprietary Information

5 Limitations of Current Network Virtualization POD1 servers are running at full capacity while POD2 has ample idle capacity. A new VM has to be instantiated. Due to limitations of the network virtualization, the new VM can be instantiated only in POD1. This may be due to reasons such as: VMnew is being spun-up due to increased demand in a vapp. The vapp resides in POD1 and this requires that VMnew also be spun-up in POD1. VMnew has an IP address in one of subnets (say C1) for which the router directs the traffic to POD Brocade Communications Systems, Inc. CONFIDENTIAL For Internal Use Only 5/23/2013 5

6 Overcoming the limitations with VXLAN VXLAN overcomes the limitations of VLAN based network virtualization through the use of tunneling technology. Tunneling technology has been well proven in the WAN environment as a means to stretch Layer 2 Networks (VPLS) and Layer 3 Networks (GRE) across data centers. VXLAN uses a VXLAN/UDP/IP header to encapsulate the original unchanged Ethernet packet Brocade Communications Systems, Inc. CONFIDENTIAL For Internal Use Only 5/23/2013 6

7 VXLAN Tunnels The VXLAN encapsulation/de-capsulation, also referred to as VLAN tunnel termination, is performed by an entity in the Hypervisor known as the VXLAN Tunnel End-Point. This slide shows two tenants, the green tenant and the blue tenant, with VMs on the two Hypervisors. VXLAN provides complete isolation between the two tenants, enabling them to have overlapping MAC and IP addresses, and even overlapping VLAN tags Brocade Communications Systems, Inc. CONFIDENTIAL For Internal Use Only 5/23/2013 7

8 Network Virtualization vrouting BROCADE VYATTA TECHNOLOGY Brocade acquired Vyatta, who pioneered the Virtual Router category and a software networking platform 1M plus downloads globally and 250,000 Active User Community vrouting technology to address east-west traffic in a highly virtualized and scale-out, multi-tenant environment An enterprise branch router platform for managed services 5/23/ Brocade Communications Systems, Inc. Proprietary Information

9 Vyatta Delivers L3 Routing with Integrated Security RUN AS A VM OR STANDALONE SOFTWARE Router Firewall VPN OSPF, BGP Stateful, NAT IPSec, SSL 5/23/ Brocade Communications Systems, Inc. Proprietary Information

10 Data Center : Software Template Model INTERNET

11 OpenFlow Programmatic Network Control A NEW POINT OF INNOVATION FOR NETWORK FUNCTIONALITY Features Device OS Hardware Applications OS Applications Hardware OS Applications Hardware OS Hardware Traditional Network Protection Layer Customer/Vendor/Partner Applications Network Controller OpenFlow Overlay Traditional IP/MPLS Routing OpenFlow-enable Network OpenFlow 1.0 shipping on Brocade MLXe router up to 100 GbE OpenFlow overlay runs in hybrid mode - concurrently with traditional IP/MPLS routing Benefits Seamless interoperability with traditional networking Separate slice of network for OpenFlow innovation Isolation enforced in hardware 5/23/ Brocade Communications Systems, Inc. Proprietary Information

12 OpenFlow Protocol Building Blocks Explicitly defined by OF Standard Flow(s) - how network traffic is defined Flow Table(s) - list of Flows used for processing network traffic Open Flow Channel - communication protocol used between controller and network element. Pieces need to make an OF solution operate. Application(s) - Software that determines network forwarding behavior Controller(s) - Software that communications with network element and application Network Element(s) - Switches/routers (physical or virtual) 2012 Brocade Communications Systems, Inc. Company Proprietary Information 12

13 OpenFlow Building Blocks The Flow OF Flow Matching Fields Actions Stats Basic building block in OpenFlow is the Flow. A Flow represents the matching fields, actions and corresponding statistics. Matching Fields (OF v1.0) include ingress port and L2/L3 packet header. Actions include drop, forward to port(s), forward to controller, modify fields (and then forward). The Flow also includes statistical information (counters) Brocade Communications Systems, Inc. Company Proprietary Information 13

14 OpenFlow Building Blocks Flow OpenFlow v1.0 Flow Entry Matching Fields Actions Stats While the OF specification may support a particular match field (or combinations) and action (s), the underlying hardware many not. Always check hardware support for the spec. Packet counters, byte counters, and etc Forward packet to a port list Add/remove/modify VLAN Tag Drop packet Send packet to the controller Ingress Port MAC DA MAC SA Layer 2 Layer 3 EtherType VLAN ID P-bits Each flow table entry contains a set of rules to match (e.g., IP src) and an action list to be executed in case of a match (e.g., forward to port list). IP Src IP Dst IP Protocol IP DSCP TCP/UDP src port TCP/UDP dst port 2012 Brocade Communications Systems, Inc. Company Proprietary Information 14

15 OpenFlow Building Blocks Flow Table A flow table is the blue print that a switch uses to process packets through the data plane At a high level it operates very much like an access control list. The table contains flow entries and is used by the switch to process packets. Flow entries are ordered by priority Flow Table 1 Matching Fields Actions 2 Matching Fields Actions 3 Matching Fields Actions Stats Stats Stats N Matching Fields Actions Stats 2012 Brocade Communications Systems, Inc. Company Proprietary Information 15

16 OpenFlow Building Blocks The Flow Table in action Packet Ingress to switch. By priority (order of entries in table), compare Packet Header to flow table. When match found, perform action (drop, forward out port(s), forward to controller) and update stats. If no entry is found, default behavior is to drop packet N Flow Table Matching Fields Actions Matching Fields Actions Matching Fields Actions Flow Table Matching Fields Actions Stats Stats Stats Stats Header Ethernet Payload Flow Table 2012 Brocade Communications Systems, Inc. Company Proprietary Information 16

17 OpenFlow Architecture Switch, Controller, Application Network Element (Switch) Communicates with Controller via the OpenFlow Channel (to/from) Forwards packets based on Flow Table* Note can also operate in Hybrid Mode etc. Controller Provides mechanism for application to push flow information to/from switches. Typically Server Based May include tool kit to write scripts (simple apps) Application Determines packet forwarding behavior and pushes the information (flow table) through controller to switch. Custom network behavior 2012 Brocade Communications Systems, Inc. Company Proprietary Information 17

18 OpenFlow Architecture NOT REAL Code. Simply illustrating that network configuration is now programmatic Application Determine Network Forwarding Behavior Based on inputs from users, other software packages and information received from networking hardware Controller and Switch Communicate flow entry information to/from switch via OpenFlow Channel (Protocol) Application Controller.. TABLEINIT();//Forward all to flows to controller FOR(){ FLOW = LISTENTOCONTROLLER();//Listen for new flows ADDFLOW(FLOW);//add source mac rule with port. PUSHFLOW(FLOWTABLE);//push flow to controller Switch Forward Traffic based on entries in flow table (to controller, drop, out port etc). Flow Table Flow Table Flow Table Highest Priority Flow Entries Lowest Priority 2012 Brocade Communications Systems, Inc. Company Proprietary Information 18

19 Hybrid Switch Mode What all vendors do Best Practice for using Single OpenFlow Uplink port VLAN 400 VE VLAN 700 VLAN 500 VE VLAN 300 VE Campus network Customer A Campus network Customer B Campus network Customer C Campus network Customer D Science DMZ Customer 1 Science DMZ Customer 2 Match same VLAN 700 for customer A L2 Switching IPv4/IPv6 routing loopback cable 3 IPv4/IPv6 routing MLXe 2 Match the uplink VLAN with different IP payloads for customer B & C Match the uplink VLAN for customer D 100G OpenFlow Port 100G WAN Link Single OpenFlow Uplink OpenFlow port Normal Routing port 2012 Brocade Communications Systems, Inc. PROPRIETARY AND CONFIDENTIAL For Internal Use Only Dec

20 Hybrid Port Mode What Brocade does Best Practice for using Single Hybrid Uplink port Normal routing port (Not OpenFlow-enabled) OpenFlow port Normal Routing port OpenFlow Hybrid port Normal routing port (Not OpenFlow-enabled) IP Routed traffic IP Routed traffic IP Routed traffic OpenFlow Traffic OpenFlow Traffic VLAN 400 VE IPv4 routing VLAN 300 VE VLAN 16 VE G port OpenFlow Hybrid Port Hybrid Port 100G WAN Link Single Hybrid Uplink Hybrid Port 1 VLAN 16 VE VLAN 700 VE IPv4 routing VLAN 600 VE IP Routed traffic IP Routed traffic OpenFlow Traffic OpenFlow Traffic OpenFlow-enabled port MLXe MLXe 2012 Brocade Communications Systems, Inc. PROPRIETARY AND CONFIDENTIAL For Internal Use Only Dec

21 Brocade MLXe High-Performance Core Router INTERCONNECTING BROCADE VCS FABRICS IN THE DATA CENTER CORE Massive scalability: Industry-leading 10G and 100G router density Supports up to Tbps fabric capacity, G ports, and G ports in single chassis On-demand capacity increase using high-capacity link aggregation Advanced, scalable software features Hardware support for up to 1M MPLS labels Routing over VPLS enables VM mobility and service flexibility between data centers Multi-tenancy at scale with VRFs, VLANs, and QinQ Compelling economics Dramatically consolidates network devices Efficient, green design enables power and space savings Seamless migration to SDN: Industry s first true Hybrid mode OpenFlow High availability: Resilient Multi-Chassis Trunking with active-active links 5/23/ Brocade Communications Systems, Inc. Proprietary Information

22 Cloud Orchestration OpenStack Open source cloud management framework for private and public clouds Your Applications Created by Rackspace and NASA in July 2010 Capturing the hearts and minds of the industry OpenStack Dashboard Rapidly becoming the de facto open source standard for cloud computing ~200 participants and 6,000+ developers Allows any organization to create and offer cloud computing capabilities using open source software, rapidly and at a low cost Compute Networking OpenStack Shared Services Physical Infrastructure Storage 5/23/ Brocade Communications Systems, Inc. Proprietary Information

23 Brocade Fabrics and OpenStack SELF-SERVICE, ON-DEMAND FABRIC PROVISIONING Brocade VCS fabric automation and OpenStack orchestration dramatically decrease time-to-deploy network capacity Brocade VCS plug-in contributed to OpenStack Grizzly release Brocade leading industry efforts to champion OpenStack support of Fibre Channel SANs Brocade Plug-in VCS APIs Partnering with Red Hat and Piston Cloud for commercial versions of OpenStack that include Brocade VCS and FC fabrics by 2H13 5/23/ Brocade Communications Systems, Inc. Proprietary Information

24 OpenStack Taxonomy Five Major Components OpenStack core services: Virtual Machines (compute) Object Store (object, data blurb) Block Storage aka Virtual Block Devices (hard drives, volume) Virtual Networks (networking) Dashboard (user portal) There are two other components that serve middleware functionality: The disk image registry (Glance) The authorization and authentication framework (Keystone) Cloud Core Services Virtual Machines OpenStack Project Amazon Web Services Equivalent Rackspace Equivalent Nova EC2 Cloud Servers Object Store Swift S3 Cloud Files Block Storage Cinder EBS Cloud Block Storage Virtual Networks Quantum, Melange Source: Brocade Communications Systems, Inc. CONFIDENTIAL For Internal Use Only 5/6/ VPC Dashboard Horizon AWS Mgmt Console Cloud Networks Cloud Control Panel

25 OpenStack Integration Roadmap Execution Plan (Roadmap) Phase 1 (Essex Release) Phase 2 (Grizzly Release) Phase n (Ultimate State) POC delivered H TBD OpenStack Dashboard Rackspace Private Cloud Piston Cloud Red Hat RHOS OpenStack Ecosystem VCS Plugin VCS + ADX + FC SAN Plugins Brocade Plugins (Network & Block Storage) VDX 67xx VCS Technology VDX 6700/8770 VCS Technology ADX Brocade Infrastructure App OS App OS App OS App OS 2010 Brocade Communications Systems, Inc. CONFIDENTIAL For Internal Use Only 25

26 SDN Use Cases SDN Will Evolve Through Value-Added Applications 2013 Brocade Communications Systems, Inc. PROPRIETARY AND CONFIDENTIAL Discussed under NDA Only 26

27 Brocade SDN Target Use Cases WAN Network Virtualization Services Creation & Insertion Network Analytics DC Network Virtualization WAN Virtualization App & SDN Controller Services Insertion App & SDN Controller Network Analytics App & SDN Controller DC Virtualization App & SDN Controller 1 Customer 1 Customer 2 DC 1 10/100G WAN DC 2 2 ADC FW Cache AAA 3 Production 10/100G WAN Analytics Tool 1 Network Tool 2 Tool 3 4 VM VM VM VM VM VM PHY PHY VM VM VM PHY PHY PHY PHY DC Network Fabric Application Delivery SDN Cloud Gateway SDN Packet-Optical Integration ADP APP & SDN Controller SDN Orchestration & SDN Controller Packet-Optical Integration APP & SDN Controller VM VM VM VM VM VM Cloud Orchestration 5 Existing Infrastructure Network (Physical) Internet Brocade ADX VxLAN Gateway Virtualized VXLAN Environment (Logical) VXLAN Segment VNI 5001 VXLAN Segment VNI PHY PHY L2/L3VPN WAN Tunnels or VLANs PHY PHY Data Center 2013 Brocade Communications Systems, Inc. PROPRIETARY AND CONFIDENTIAL Discussed under NDA Only DC1 SDN OTN DC 1 Optical DC 2 MPLS/IP DC2 SDN

28 WAN Network Virtualization Traditional L2/L3VPN-IP Network with OpenFlow Overlay SDN Use Case 1 Protection Layer Traditional WAN Management OpenFlow Overlay WAN SDN Controller Traditional L2/L3VPN, IP OpenFlow as an overlay to existing network Allows for new revenue-generating features on top of existing production network Enabled by Brocade s Hybrid port mode OpenFlow and traditional features enabled concurrently on same router ports DC 1 DC 2 WAN Physical Infrastructure Protected Hybrid Port Mode OpenFlow does not affect Traditional traffic Protection in hardware Allows for initial OpenFlow overlay service development without risk 2013 Brocade Communications Systems, Inc. PROPRIETARY AND CONFIDENTIAL Discussed under NDA Only 28

29 Internet2 BROCADE OPENFLOW ENABLED 100G NATIONWIDE BACKBONE Olympia Portland Eugene Sacramento Sunnyvale San Luis Obispo Los Angeles San Diego Seattle Reno IP router node Spokane Bozeman Boise Las Vegas Optical add/drop facility Missoula Salt Lake City Phoenix Tucson Billings Miles City Dickinson Denver Albuquerque El Paso Bismarck Minneapolis Kansas City San Antonio Fargo Houston (2) Chicago (3) Tulsa Dallas Madison Memphis St. Louis Jackson Baton Rouge Detroit Chattanooga Nashville Buffalo Cincinnati Louisville Cleveland Indianapolis Ashburn Atlanta Pittsburgh Charlotte Albany Philadelphia Boston New York (2) Washington DC Raleigh Jacksonville SDN Use Case Exchange Point Internet 2 49 Custom Location Facilities 15,500 miles of dark Fiber 8.8 Tbps of Optical Capacity Hybrid Mode with protected OpenFlow traffic Brocade Communications Systems, Inc. PROPRIETARY AND CONFIDENTIAL Discussed under NDA Only 29

30 Services Creation & Insertion SDN Use Case 2 SDN automates Traffic steering to achieve desired pipeline of services Customization of services according to customer needs Optimizes use of network resources No need to steer traffic through traffic steering appliances Services Insertion App + SDN Controller ADC FW Cache Services OpenFlow router 2013 Brocade Communications Systems, Inc. PROPRIETARY AND CONFIDENTIAL Discussed under NDA Only 30

31 SDN Approach to Network Analytics Unlocking Advanced Operational Intelligence Why network analytics is important Real-time network statistics collection & alerting Summarization of normal and abnormal traffic Detect network performance issues in advance of customer complaints Use cases Internet/Mobile traffic analysis: Facebook, Youtube, , Big Data analysis Detection of unlawful content SDN Use Case Network Analytics App Network Analytics App Network Analytics App RESTful APIs SDN/OpenFlow Controller Physical Network OpenFlow + RESTful APIs Tool 1 Tool 2 Tool 3 Tool 4 Tool rd Party Analytic Tools 2013 Brocade Communications Systems, Inc. PROPRIETARY AND CONFIDENTIAL Discussed under NDA Only 31

32 Data Center Network Virtualization Scalable Cloud Services SDN Use Case 4 Customer A Customer B Customer c VM VM VM VM VM VM VM VM VM Tunnels enable physical network abstraction (logical network) PHY PHY PHY PHY PHY PHY VxLAN, NVGRE, STT VM server vswitch Tunnels DC Logical Networks DC Physical Infrastructure ToR server vswitch VM VM PHY PHY PHY VM VM VM Software Switches (vswitches) connect virtual machines ToRs connect physical machines SDN Gateways enable scalable connectivity into the logical network 2013 Brocade Communications Systems, Inc. PROPRIETARY AND CONFIDENTIAL Discussed under NDA Only 32

33 SDN Use Case 5 Brocade ADX VXLAN gateway solution Brocade ADX Physical to Logical Gateway Solution Industry s first integrated VXLAN gateway and application delivery controller (ADC) Connects VXLAN environments to the Internet Non-Virtualized Environment Internet Virtualized VXLAN Environment Automated Orchestration Spans VXLAN and non-vxlan environment Enables transparent access to both VXLAN connected VMs and physical servers VLAN Segment VLAN Segment VLAN Segment VLAN Segment Brocade ADX VXLAN Gateway VXLAN VNI 5001 VXLAN VNI 6001 VXLAN VNI 7001 VXLAN VNI 8001 VMware vshield Manager and vcenter support vcenter Demonstrated at VMWorld San Francisco, September 2012 VXLAN GATEWAY ON THE BROCADE ADX APPLICATION DELIVERY SWITCHES 2013 Brocade Communications Systems, Inc. PROPRIETARY AND CONFIDENTIAL Discussed under NDA Only 33

34 SDN Use Case 6 SDN Cloud Gateway Interconnecting DC Logical Networks to WAN L2/L3VPNs VM VM VM PHY PHY Customers L2VPN-L3VPN WAN VM VM VM PHY PHY SDN Cloud Gateway Direct mapping from customers DC Logical Networks to WAN L2/L3VPNs SDN point of control between WAN and DC network Data Center DC SDN Controller Tunnels SDN Cloud Gateway Cloud Scale Optimized to large DC multi-tenancy requirements Inter-DC connectivity Server Server Termination of tunnels: VxLAN, NVGRE, etc VM VM PHY VM VM PHY 2013 Brocade Communications Systems, Inc. PROPRIETARY AND CONFIDENTIAL Discussed under NDA Only 34

35 Summary: Brocade SDN in the Data Center On-Demand Network Stack Cloud Management Layer Application Layer Enabling Technologies Orchestration Frameworks SDN Applications Brocade Strategy OpenStack, VMware vcloud Director, RESTful device APIs Network Analytics, etc. Virtualization Layer Overlay networks Programmatic control Virtual network services VXLAN, OpenFlow, OpenScript vrouting, vadc Network Fabric Layer Ethernet Fabrics Brocade VCS Fabrics 5/23/ Brocade Communications Systems, Inc. Proprietary Information

36 Leadership through Innovation Empowering the On-Demand Data Center Leadership and rapid innovation in Fabrics, IP routing and Softwaredefined Networking Delivering the world s most automated, efficient and agile networks 5/23/ Brocade Communications Systems, Inc. Proprietary Information

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