A table of system module and sub-module information. In this table, a module refers to a physical module (board) or a sub-module. A physical board may contain a single module or multiple sub-modules. For example, an ERX line card is a single module and appears as single entry in this table. An I/O adapter is a module that doesn't provide any operaitonal state information and it also appears as a single entry in this table. A second generation E-series SRP/SFS hardware module contains two sub-modules, each with its own operational state information: a System Resource Processor (SRP) sub-module and a Switch Fabric Slice (SFS) sub-module, which appear as two separate entries in this table, one for each sub-module.