Obsolete:Networking

Networking Overview

Live notes may be taken for this topic at: http://etherpad.openstack.org/Networking

Rackspace Implementation

Current implementation

• Flat Network Design
• Networking configurations injected into instances, or pulled via a Guest Agent
• Instances protected by various IPTables, Ebtables, Arptables rules
  • Protects instances from IP/MAC Address Spoofing
  • Protects instances from ARP Poisoning Attacks
• Host machines connect three Datacenter Networks: Public, ServiceNet, ManagementNet
  • ManagementNet is used for communication from controllers to host.
• Instances connected to single bridge for each network, Public, ServiceNet
• Bandwidth throttling.

Future implementation

• Addition of HostNet Bridge for internal communication from Instances to all host network for storage.
  • Is this an additional network interface or does this piggy back existing.
  • Need Hypervisor agnostic communication for Guest Communication.
• Open vSwitch

Nova Implementation

Current implementation

• private networking and vpns
• ip address allocation by api
• dhcp server
• instances attached to seperated tagged bridges

Future implementation

• pluggable network implementation
  • support for flat networking model
  • support for ip injection
• network is its own worker process and uses queue
• support for dedicated network hardware

IPv6

IPv6 should have first-class support, we can derive IPv4 address binding with the IPv6 to IPv6 mapping space and configuration options.