Answers to your Questions

What are the Key Test Scenarios for IPv6?

The following is a list of key test scenarios for engineers who are building, evaluating, and benchmarking both IPv6 routers and dual-stack routers:

• IPv4/IPv6 forwarding functionality: tests the correct encapsulation of IPv6 traffic in IPv4 packets.
   
• IPv6 forwarding performance: checks the wire-rate capability of a router or the behavior of its switch fabric.
   
• IPv4/IPv6 forwarding performance: measures the impact of the IPv6 traffic on the performance of the IPv4 user plane.
   
• Routing protocol conformance: allows software engineers to perform automatic regression testing.
   
• Routing scalability: stresses the IPv6 control plane by performing measurements such as convergence time.
   
• Tunneling (MPLS/configured/automatic): checks the transition mechanisms of dual-stack routers or networks.
   
• Forwarding impact of IPv6 FIB size: tests the overall performance of routers by populating the routing tables and sending IPv6 traffic.
   
• Routing stability: measures the behavior of the control and user planes while route flapping occurs.