Virtual Routers: A Tool for Emulating IP Routers

Motivation

Virtual Router Emulation of Networks

Virtual Router Functions

Integration of Real End-Systems

Packet Transport through VR network

Packet flow within a Virtual Router

Virtual Router Evaluation of Packet Delays

Packet Delay Impact of Distribution

Packet Delay Impact of Distribution (+ additional traffic)

Packet Delay Impact of VR Instances

Packet Delay Impact of VR Instances (+additional traffic)

Differentiated Services with VRs and ns2

Differentiated Services UDP Bandwidth Sharing with AF

Differentiated Services UDP in a badly provisioned network

Differentiated Services Flow protection

Summary & Conclusion