Abstract

Pablo Pavón Mariño Th1D.1.pdf Full Professor, Technical University of Cartagena Th1D.1.pdf Head of GIRTEL research group http://girtel.upct.es 15 years track in research in network optimization Leader of the Net2Plan open source network planning initiative Co-founder of E-lighthouse Network Solutions Multilayer network planning software 1. Introduction 2. Use cases 3. Optimization software: a review of the solvers 4. Network optimization software: Net2Plan 5. Wrap up Use cases: 1. Single VNF (VM), single OpenStack • NOVA: Allocating VMs in computing resources, vertical scaling 2. VNF service chain, single OpenStack • HEAT: Allocating NSs, optimizing horizontal autoscaling • WATCHER: A project centralizing optimization decisions in an OpenStack 3. Network orchestration • Optimization as a Service (OaaS) 4. Network service across multiple OpenStacks connected in a network • OSM, TACKER, ONAP and others • Availability zones (NOVA and NEUTRON). A host can be tagged to be in one availability zone. E.g. Those connected to the same master power supply. More info: • https://docs.openstack.org/nova/pike/user/aggregates.html • https://docs.openstack.org/newton/networking-guide/config-az.html Use the information for allocations with enhanced availability NUMA topology (visible through the hypervisor) The system memory is divided into cells or nodes that are associated with a particular CPU. CPU pinning An instance’s vCPU is assigned (pinned) to a particular host CPU. EPA. Enhanced Platform Awareness TOSCA VNFD* templates allow specifying VNF requirements such as NUMA topology, SR-IOV, Huge pages and CPU pinning. Source: https://docs.openstack.org/nova/pike/admin/cpu-topologies.html https://www.stratoscale.com/blog/openstack/cpu-pinning-and-numa-awareness/ https://docs.openstack.org/tacker/latest/user/enhanced_placement_awareness_usage_guide.html enables a network- constraints External allocation of bandwidth 2. VNF service chain, single OpenStack Heat includes as resource an Autoscaling Group to create a desired count of resources (defined with the resource property in HOT format).

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