ISpanningTree¶

module interface ISpanningTree

Module interface for Spanning Tree protocols

Usage diagram¶

Inheritance diagram¶

Implemented by¶

Name	Type	Description
Rstp	simple module	Implements the Rapid Spanning Tree Protocol (IEEE 802.D-2004) for IEC 48-bit MAC addresses. It is a complete implementation except it doesn’t fall back to STP when peers don’t support RSTP.
Stp	simple module	The Spanning Tree Protocol (STP) is a network protocol that ensures a loop-free topology for any bridged Ethernet local area network. The basic function of STP is to prevent bridge loops and the broadcast radiation that results from them. Spanning tree also allows a network design to include spare (redundant) links to provide automatic backup paths if an active link fails, without the danger of bridge loops or the need for manually enabling/disabling these backup links.

Used in compound modules¶

Name	Type	Description
EthernetSwitch	compound module	EthernetSwitch models a Layer 2 Ethernet switch with support for various IEEE 802.1 protocols and features. It provides frame forwarding based on MAC addresses and implements multiple switching technologies.

Parameters¶

Name	Type	Default value	Description
helloTime	double
forwardDelay	double
maxAge	double
bridgePriority	int
visualize	bool

Properties¶

Name	Value	Description
display	i=block/network2

Source code¶

//
// Module interface for Spanning Tree protocols
//
moduleinterface ISpanningTree
{
    parameters:
        @display("i=block/network2");
        double helloTime @unit(s);
        double forwardDelay @unit(s);
        double maxAge @unit(s);
        int bridgePriority;
        bool visualize;
    gates:
        input relayIn;
        output relayOut;
}

File: src/inet/linklayer/contract/ISpanningTree.ned