Name | Type | Description |
---|---|---|
BPDU | packet |
Represents a BPDU (Bridge PDU) used by the STP and RSTP protocols, as defined in the 802.1D-1998 specification. |
// // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU Lesser General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public License // along with this program. If not, see http://www.gnu.org/licenses/. // cplusplus {{ #include "inet/linklayer/common/MACAddress.h" }} namespace inet; class noncobject MACAddress; // // Represents a BPDU (Bridge PDU) used by the STP and RSTP protocols, // as defined in the 802.1D-1998 specification. // packet BPDU { byteLength = 35; unsigned int protocolIdentifier; // 0 for STP, 1 for RSTP (TODO use them) unsigned int protocolVersionIdentifier; // currently 0 unsigned int bpduType; // 0 for Configuration BPDU, 1 for Topology Change Notification BPDU bool tcaFlag; // Topology Change Acknowledgment flag bool tcFlag; // Topology Change flag MACAddress rootAddress; // address of the tree root (first part of Root Identifier) unsigned int rootPriority; // priority of the tree root (second part of Root Identifier) unsigned int rootPathCost; // cost to the root MACAddress bridgeAddress; // address of sender bridge (first part of Bridge Identifier) unsigned int bridgePriority; // priority of sender bridge (second part of Bridge Identifier) unsigned int portNum; // port number (ethg[] gate index) of sender port (first part of Port Identifier) unsigned int portPriority; // priority of sender port (second part of Port Identifier) simtime_t messageAge; // Message Age in seconds simtime_t maxAge; // maximum lifetime of the BPDU (seconds) simtime_t helloTime; // Hello Time of the sender bridge simtime_t forwardDelay; // Forward Delay timer of the sender bridge }