NED File src/inet/routing/aodv/Aodv.ned
Name | Type | Description |
---|---|---|
Aodv | simple module |
Ad hoc On-Demand Distance Vector Routing Protocol module. |
Source code
// // Copyright (C) 2014 OpenSim Ltd. // // SPDX-License-Identifier: LGPL-3.0-or-later // package inet.routing.aodv; import inet.applications.contract.IApp; // // Ad hoc On-Demand Distance Vector Routing Protocol module. // // The Ad hoc On-Demand Distance Vector (AODV) routing protocol is // intended for use by mobile nodes in an ad hoc network. It offers // quick adaptation to dynamic link conditions, low processing and // memory overhead, low network utilization, and determines unicast // routes to destinations within the ad hoc network. // // This routing protocol communicates over UDP and used in ~AodvRouter // nodes as a routing submodule. ~AodvRouter is just a ~WirelessHost // extended with ~Aodv submodule. // // This implementation is based on RFC 3561. For more information, you may // refer to the following link: https://tools.ietf.org/html/rfc3561.html. // simple Aodv like IApp { parameters: @class("aodv::Aodv"); @display("i=block/network2"); string routingTableModule = default("^.ipv4.routingTable"); string interfaceTableModule = default("^.interfaceTable"); string networkProtocolModule = default("^.ipv4.ip"); bool askGratuitousRREP = default(false); // see RFC 3561: 6.6.3 bool useHelloMessages = default(false); // see RFC 3561: 6.9 bool useLocalRepair = default(false); // see RFC 3561: 6.12 *not implemented yet* bool destinationOnlyFlag = default(false); // see RFC 3561: 5.1 int udpPort = default(654); string interface = default("wlan0"); double maxPeriodicJitter @unit(s) = default(helloInterval / 4); // it MUST NOT be negative; it MUST NOT be greater than MESSAGE_INTERVAL/2; it SHOULD NOT be greater than MESSAGE_INTERVAL/4. volatile double periodicJitter @unit(s) = default(uniform(0s, maxPeriodicJitter)); // jitter for externally triggered message generation and message forwarding // RFC 5148: // need more revise: As well as the decision as to whether // to use jitter being dependent on the medium access control and // lower layers, the selection of the MAXJITTER parameter SHOULD // be appropriate to those mechanisms. double maxJitter @unit(s) = default(5ms); volatile double jitter @unit(s) = default(uniform(0ms, maxJitter)); // jitter for broadcasts double helloInterval @unit(s) = default(1s); // every helloInterval seconds a node broadcasts Hello messages (if it is necessary) int allowedHelloLoss = default(2); // allowedHelloLoss * helloInterval is the lifetime value for Hello messages double activeRouteTimeout @unit(s) = default(3s); // the timeout value for cached routes If Hello messages are used, then the // ACTIVE_ROUTE_TIMEOUT parameter value MUST be more than the value // (ALLOWED_HELLO_LOSS * HELLO_INTERVAL). int netDiameter = default(35); // the maximum possible number of hops between two nodes in the network double nodeTraversalTime @unit(s) = default(0.04s); // an estimation of the average one-hop traversal time int rerrRatelimit = default(10); // maximum number of RERR messages that the AODV may originate in 1s. int rreqRetries = default(2); // specifies the number of times AODV will repeat an expanded ring search for a destination int rreqRatelimit = default(10); // maximum number of RREQ messages that the AODV may originate in 1s. int timeoutBuffer = default(2); // plus time to wait for a delayed RREP (due to congestion) (to omit this buffer set it to 0) int ttlStart = default(2); // specifies the TTL value when initiating a route request int ttlIncrement = default(2); // specifies the value by which the TTL will be incremented each time a RREQ is retransmitted int ttlThreshold = default(7); // the maximum value of TTL over which NET_DIAMETER value will be used to broadcast any RREQ int localAddTTL = default(2); // it is used by the formula which calculates the initial TTL of the RREQ for a local repair double myRouteTimeout @unit(s) = default(2 * activeRouteTimeout); // the value of the lifetime field that a destination node places in RREPs double deletePeriod @unit(s) = default(5 * max(activeRouteTimeout, helloInterval)); // the time after which an expired route is deleted double blacklistTimeout @unit(s) = default(rreqRetries * netTraversalTime); // the time after which a blacklisted node is removed from the blacklist double netTraversalTime @unit(s) = default(2 * nodeTraversalTime * netDiameter); // an estimation of the traversal time for the complete network double nextHopWait @unit(s) = default(nodeTraversalTime + 0.01s); // timeout for a RREP-ACK double pathDiscoveryTime @unit(s) = default(2 * netTraversalTime); // buffer timeout for each broadcasted RREQ message gates: input socketIn; output socketOut; }