May 13-14, Copyright 2015 Open Networking User Group. All Rights Reserved Not For
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1 May 13-14, 2015
2 Virtual Network Overlays Working Group Follow up from last ONUG use case and fire side discussions ONUG users wanted to see formalized feedback ONUG users wanted to see progression in use case definition / adoption ONUG user poll ONUG Fall 2014 Working group, with both end-users and vendors, created for specific use cases intended to address ONUG audience feedback Collect and document end-user requirements Clarify and refine use case requirements based on vendor inputs Validate and show case use case capabilities via vendor PoCs Working group will be working on set of deliverables, which will be presented at the upcoming Spring 2015 ONUG Showcase results of PoC / validation tests, addressing the top 10 Virtual Network/Overlay use case requirements
3 User Poll ONUG Fall 2014
4 Virtual Network Overlays Orchestration Vendor Approaches Overlay Controller(s) Cloud Orchestration Network Overlay End-Point Virtual Network Overlay Network Overlay End-Point Underlay Edge Node L2/L3 Network Edge Node Open Interface
5
6 Cisco Overlay Verifica0on Tes0ng Mike Cohen Director of Product Management Cisco
7 Overlay WG Use Case Feature Verification of Top Ten Requirements Results 1. Virtual network overlay forwarding based on Open vswitch and open documented encapsulation techniques. VXLAN used in this test. 2. Virtual network overlay endpoint termination on hypervisors, Linux containers and physical switches 3. Virtual network control plane scale and acceptable convergence for deployments scaling up to 100,000 endpoints - Products Nexus 9504 System Under Test Software Versions 11.0(3n) 2 Nexus (3n) Application Policy Infrastructure Controller 1.0(3n) Open documented southbound controller-to-endpoint interface(s) for virtual network overlay endpoint provisioning and traffic policy configuration Open documented controller-to-controller interfaces, enabling multi-domain federation of separate virtual overlay networks - 6. Open documented northbound virtual network controller interface to cloud orchestration systems 7. Layer-2 and layer-3 traffic mapping and distributed virtual network overlay packet forwarding 8. Networking Virtual Edge (NVE) monitoring capabilities, using standard management protocols and APIs 9. End-to-end network overlay monitoring to validate network reachability and performance characteristics 10. Correlation of virtual network overlays with physical network underlay state and performance (Vendor s choice)
8 Cisco Applica0on Centric Infrastructure Test Topology VXLAN traffic VLAN traffic Ubuntu OpenStack Ixia Nexus 9504 Nexus 9396 Cisco Centric Infrastructure Leaf- spine network topology APIC* Physical Ixia Ubuntu server running docker containers OpenStack (including OVS) VM OVS * Production deployments require 3 APICs
9 Cisco Applica0on Centric Infrastructure Highlights Test (2): ACI can integrate with bare metal, hypervisors, and Linux containers Automation Investment Protection Open Visibility Security Lowering Opex and TCO Test (4/6): ACI offers open REST APIs as well as open southbound APIs (Device Packages / OpFlex) Test (9/10): ACI delivers strong physical + virtual integra@on integra@on through health scores, fault repor@ng, and atomic counters
10 Test 10: Physical + Virtual Example Problem: A tenant or applica@on reports connec@vity issues or diminished performance in a virtual network Solu@on: APIC offers health scores tracking tenant to root causes that may exist in the physical network!
11 More Informa0on h`p://
12 Big Switch Networks Overlay Verifica0on Tes0ng Kyle Forster Founder Big Switch Networks
13 Overlay WG Use Case Feature Verification of Top Ten Requirements Results 1. Virtual network overlay forwarding based on Open vswitch and open documented encapsulation techniques. VXLAN used in this test. 2. Virtual network overlay endpoint termination on hypervisors, Linux containers and physical switches Products System Under Test Software Versions Big Cloud Fabric Virtual network control plane scale and acceptable convergence for deployments scaling up to 100,000 endpoints - Open documented southbound controller-to-endpoint interface(s) for virtual network overlay endpoint provisioning and traffic policy configuration VMWare vsphere 5.5u2 Vmware NSX Apache Hadoop with Cloudera Manager (version CDH 5.3.3) Open documented controller-to-controller interfaces, enabling multi-domain federation of separate virtual overlay networks 6. Open documented northbound virtual network controller interface to cloud orchestration systems 7. Layer-2 and layer-3 traffic mapping and distributed virtual network overlay packet forwarding 8. Networking Virtual Edge (NVE) monitoring capabilities, using standard management protocols and APIs - 9. End-to-end network overlay monitoring to validate network reachability and performance characteristics 10. Correlation of virtual network overlays with physical network underlay state and performance (Vendor s choice)
14 Test Set- Up Big Cloud Fabric SDN Controllers (active-standby pair) NSX-v Controllers (active-standby pair) Switch Light OS on Spine (6 40G bare metal switches) Switch Light OS on Leaf (32 10G/40G bare metal switches) 38 switch in SDN leaf- spine underlay (Big Cloud Fabric) 16 ESXi hosts in SDN overlay (NSX- v) Pathological L2/L3 underlay versus L2/L3 overlay design Hadoop Terasort workload (Cloudera) < racks of servers / 48k VMs simulated using massive scale 1024 x 10GE traffic generator --->
15 Chaos Monkey! Force- failed a random BCF controller every 70 seconds, a random switch every 8 seconds and a random link every 4 seconds No change to terasort run.mes
16 Nuage Networks Overlay Verifica0on Tes0ng Jerrod Gerth Principal Architect Nuage Networks
17 Overlay WG Use Case Feature Verification of Top Ten Requirements Results 1. Virtual network overlay forwarding based on Open vswitch and open documented encapsulation techniques. VXLAN used in this test. 2. Virtual network overlay endpoint termination on hypervisors, Linux containers and physical switches 3. Virtual network control plane scale and acceptable convergence for deployments scaling up to 100,000 endpoints Products System Under Test Nuage Virtualized Services Platform (incl. Virtualized Services Directory - VSD, Virtualized Services Controller - VSC, and Virtualized Router Switch - VRS) VSG 7850, Nuage Virtualized Services Assurance Platform (incl. DC Network Service Navigator, DC Fault Management) Software Versions 3.0 Alcatel Arista DCS-7150S Open documented southbound controller-to-endpoint interface(s) for virtual network overlay endpoint provisioning and traffic policy configuration Open documented controller-to-controller interfaces, enabling multi-domain federation of separate virtual overlay networks 6. Open documented northbound virtual network controller interface to cloud orchestration systems 7. Layer-2 and layer-3 traffic mapping and distributed virtual network overlay packet forwarding 8. Networking Virtual Edge (NVE) monitoring capabilities, using standard management protocols and APIs 9. End-to-end network overlay monitoring to validate network reachability and performance characteristics 10. Correlation of virtual network overlays with physical network underlay state and performance (Vendor s choice)
18 Nuage Networks Test Topology Nuage VSAP Nuage VSD Alcatel-Lucent 7750 Nuage VSAP Route Monitor Alcatel-Lucent 7750 Alcatel-Lucent 7750 Nuage VSC Nuage VSC Nuage VSG 7850 Arista 7150S Federation Nuage VSG 7850 Arista 7150S Hypervisor Hypervisor Hypervisor Hypervisor Hypervisor Hypervisor Hypervisor Hypervisor Hypervisor DC 1 Rack 1 Hypervisor Hypervisor Hypervisor DC 1 Rack 2 DC 1 Rack 1 Availability Zone 1 Availability Zone 2 DC 1 Rack 2
19 Nuage Networks Scale Test Create 200 networks and 200 VRFs (router contexts) Use 200 hypervisors Single VSD process, 4 VSCs All running as AWS instances Create 100K docker containers 500 containers per network (showing scale of broadcast domains) 20 networks per hypervisor Nets 0-19 in hypervisor 1, 1-20 in hypervisor 2, and so on Demonstrates that solu@on scales in real environments Demonstrate convergence in under 10 minutes
20 Nuage Networks and the ONUG Use Cases Software only solution Any underlay, any server hardware Open interfaces ReST, OVSDB, OpenFlow, BGP Scale and Robustness Internet scale architecture Multi-zone federation
21 Nuage Networks & the DevOps Loop Business Requirements Nuage Networks Virtualized Services PlaVorm (VSP) Announcing Today: Customer Feedback Dev & Test Application-driven Design Policy-based, Declarative Control Nuage Networks WHAT S NEEDED? Virtualized Services Assurance PlaVorm (VSAP) Network Flexibility Overlay & Underlay Correlation Service Navigation Operations Deployment Nuage Networks Virtualized Services PlaVorm (VSP) Fault Management Application analytics Security & Policy Management Flexibility in Choice of Hardware
22 Pluribus Networks Overlay Verifica0on Tes0ng Sunay Tripathi Founder and CTO Pluribus Networks
23 Overlay WG Use Case Feature Verification of Top Ten Requirements Results 1. Virtual network overlay forwarding based on Open vswitch and open documented encapsulation techniques. VXLAN used in this test. 2. Virtual network overlay endpoint termination on hypervisors, Linux containers and physical switches Products System Under Test Software Versions F64-M 3.0 E28-Q Virtual network control plane scale and acceptable convergence for deployments scaling up to 100,000 endpoints Open documented southbound controller-to-endpoint interface(s) for virtual network overlay endpoint provisioning and traffic policy configuration Open documented controller-to-controller interfaces, enabling multi-domain federation of separate virtual overlay networks - Ixia IxNetwork 7.40 EA 6. Open documented northbound virtual network controller interface to cloud orchestration systems 7. Layer-2 and layer-3 traffic mapping and distributed virtual network overlay packet forwarding 8. Networking Virtual Edge (NVE) monitoring capabilities, using standard management protocols and APIs 9. End-to-end network overlay monitoring to validate network reachability and performance characteristics 10. Correlation of virtual network overlays with physical network underlay state and performance (Vendor s choice)
24 Test Configura0on Automatic tunnel provisioning! On-demand, dynamic VXLAN encap/decap! F64 (Intel FM6000) E28 (Broadcom Trident 2) VXLAN Tunnel L3 CORE VLAN 300 VLAN 400 VLAN 500 VLAN 500 VLAN 100 VLAN 100 VLAN 300 VLAN 400 VLAN 500 VLAN K VMs 95% line 0% packet drop Convergence: Cold: 25.54sec Warm: 7.35
25 !!! Unified Overlay and Underlay w/ Switch VTEP Off- load L3# VXLAN IP/ECMP'Fabric' Tunnel VXLAN over BGP fabric or VXLAN for L2 POD extension L2#$#VLAG# L3# IP/ECMP'Fabric' L2#$#VLAG# L2#$#VLAG# L2#$#VLAG# L2#$#VLAG# L2#$#VLAG# L2#$#VLAG# L2#$#VLAG# POD #1 L3 CORE POD #2 VXLAN Tunnel L2#$#VLAG# L3# IP/ECMP'Fabric' L2#$#VLAG# L2#$#VLAG# L2#$#VLAG# Netvisor SDN Fabric to orchestrate and automate VXLAN tunnel offload on Leaf switches Keep server networking simple and eliminate VXLAN encap/decap performance tax ONE fabric with seamless overlay- underlay (VXLAN) visibility 100K VMs 95% line 0% packet drop Convergence: Cold: 25.54sec Warm: 7.35
26 Wrap-up For more information: ONUG web site: Network Overlay working group Network Overlays white paper Network Overlay test plans Vendors! What s next Refinement of network overlay use case tests Open source network overlay test scripts: Poll results
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