File xsim.data Specification

The xsim.data file specifies most aspects of a simulation, including the structure of the simulated internetwork and the tests to be run. This section fully describes all of the components of this file.

The xsim.data file consists of a set of entries, each of which describes an internet component (e.g., a network, router, or host), or defines a macro variable. Entries that describe components are multi-line, as follows.

• The first line identifies and names the component.

• The second line contains configuration information central to the type of component being defined. For networks, connectivity is specified; for routers, the routing table is specified; and for hosts, the protocol graph is given.

• The remaining line(s) list component-specific parameters. Many of these parameters control the kinds of tracing done by the component.

The format of each type of entry is documented in the following subsections.

• The set Entry
• The convert Entry
• The net Entry
• The router Entry
• The host Entry