Netbed, an outgrowth of Emulab, provides +
Emulab provides integrated access to three disparate experimental environments: simulated, emulated, and wide-area network -testbeds. Netbed strives to preserve the control and ease of use of +testbeds. Emulab strives to preserve the control and ease of use of simulation, without sacrificing the realism of emulation and live network experimentation.
-Netbed unifies all three environments under a common user interface, +Emulab unifies all three environments under a common user interface, and integrates the three into a common framework. This framework provides abstractions, services, and namespaces common to all, such as allocation and naming of nodes and links. By mapping the abstractions -into domain-specific mechanisms and internal names, Netbed masks much +into domain-specific mechanisms and internal names, Emulab masks much of the heterogeneity of the three approaches.
-Netbed's emulation testbed consists of three sub-testbeds +Emulab's emulation testbed consists of three sub-testbeds (nodes from each can be mixed and matched), each catering to a different research target:
Numerous other sites have set -up their own network emulators using Netlab's software, including the +up their own network emulators using Emulab's software, including the University of Kentucky testbed, and the Georgia Tech Testbed.