MacForwardingTable¶

simple module MacForwardingTable

Handles the mapping between ports and MAC addresses.

Entries are deleted if their age exceeds a certain limit.

If needed, address tables can be pre-loaded from text files at the beginning of the simulation; this is controlled by the forwardingTableFile module parameter. File format:

line oriented table with space or TAB delimited columns. columns:

VLAN ID: numeric value, 0 means no vlan MAC address: string, resolved with ~L3AddressResolver as MAC_ADDR Interface: interface name, e.g. eth3 (or interface id, e.g. 103)

empty lines and commented out lines starting with ‘#’ are allowed.

Usage diagram¶

Inheritance diagram¶

Used in compound modules¶

Name	Type	Description
AccessPoint	compound module	A wireless access point device that connects wireless stations (like WirelessHost) to a wired network. Supports multiple wireless radios and multiple Ethernet ports.

Extends¶

Name	Type	Description
SimpleModule	simple module	Base module for all INET simple modules.

Parameters¶

Name	Type	Default value	Description
displayStringTextFormat	string	“addr: %a\nvlan: %v”	Determines the text that is written on top of the submodule, supports displaying pars, watches, and module-specific information
agingTime	double	120s
forwardingTable	object	[]
forwardingTableFile	string	“”
interfaceTableModule	string

Properties¶

Name	Value	Description
class	MacForwardingTable
display	i=block/table2

Source code¶

//
// Handles the mapping between ports and MAC addresses.
//
// Entries are deleted if their age exceeds a certain limit.
//
// If needed, address tables can be pre-loaded from text files at the beginning
// of the simulation; this is controlled by the `forwardingTableFile` module parameter.
// File format:
//   line oriented table with space or TAB delimited columns.
//   columns:
//     VLAN ID:      numeric value, 0 means no vlan
//     MAC address:  string, resolved with ~L3AddressResolver as MAC_ADDR
//     Interface:    interface name, e.g. eth3 (or interface id, e.g. 103)
//   empty lines and commented out lines starting with '#' are allowed.
//
simple MacForwardingTable extends SimpleModule like IMacForwardingTable
{
    parameters:
        @class(MacForwardingTable);
        @display("i=block/table2");
        double agingTime @unit(s) = default(120s);
        object forwardingTable @mutable = default([]);
        string forwardingTableFile = default("");
        string interfaceTableModule;
        displayStringTextFormat = default("addr: %a\nvlan: %v");
}

File: src/inet/linklayer/ethernet/common/MacForwardingTable.ned