Robustness and High Availability

The following mechanisms are considered:
  • Infrastructure, Hypervisor and Cloud Control Reliability, comparing the Virtual Machines (VM) and virtual network with infrastructure resources management.
  • Orchestrator Reliability, for fault recovery and root cause analysis generic to the VNFs.
  • Virtual Network Function (VNF) Reliability in the VMs - OS functionality ensuring reliability transparent to the VNF functions
  • Reliability at Virtual Service Level – current explicit reliability mechanisms (pools, offloading, …)
NGNI, OpenSDNCore, Singewebsite, Robustness, High Availability, infographic
Fraunhofer FOKUS
For robustness on the virtualization enabler, the design of the appropriate forwarding nodes needs to support:
  • Load balancing (with the specific protocols/with different policies)
  • High availability operations, like distribution of state information and immediate reaction to faults.
  • Support for proxy nodes in edge cloud processing and with intermittent backhaul.