OPENFLOW OMNETPP
OPENFLOW OMNETPP PROJECTS
OPENFLOW OMNETPP Open Network Foundation (ONF) had presented a protocol called OpenFlow which regard as a first standardization communication interface of SDN approaches. The key representative of the protocols enabling the creation and operation of the SDN is the OpenFlow (OF) protocol. OpenFlow should not be considered only as a protocol, but as a concept built on the fundamental idea separating the control and the data plane.
- Completed OPENFLOW OMNETPP 32%
- On-Going Completed OPENFLOW OMNETPP 11%
Motivation of OPENFLOW:
- Need for programmable networks.
- Network changes are sluggish.
Principle of opnflow:
- Sits between a switch and controller.
- Separation of control plane and data plane.
- Allow the path of network packets through the network of switches to be determined by software running on a separate server.
- Added as a feature to commercial Ethernet switches, routers and wireless access points.
- SDN protocol that modifies forwarding table network switches.
Sample code for OPENFLOW OMNMETPP:
This is the sample code of route table entry OMNETPP.
Flow_Table::Flow_Table() {
}
static inline int flow_fields_match(oxm_basic_match *m1, oxm_basic_match *m2, uint32_t w)
{
return (((w & OFPFW_IN_PORT) || m1->OFB_IN_PORT == m2->OFB_IN_PORT)
&& ((w & OFPFW_DL_TYPE) || m1->OFB_ETH_TYPE == m2->OFB_ETH_TYPE )
&& ((w & OFPFW_DL_SRC) || !m1->OFB_ETH_SRC.compareTo(m2->OFB_ETH_SRC))
&& ((w & OFPFW_DL_DST) || !m1->OFB_ETH_DST.compareTo(m2->OFB_ETH_DST)));
}
void Flow_Table::addEntry(oxm_basic_match *match, entry_data* data) {
pair<multimap<oxm_basic_match, entry_data>::iterator, bool> ret;
entry_map.insert(pair<oxm_basic_match, entry_data>(*match, *data));
std::multimap<oxm_basic_match, entry_data>::iterator j = entry_map.begin();
while (j!=entry_map.end())
{
EV << j->first.OFB_IN_PORT <<endl;
EV << j->first.OFB_ETH_SRC <<endl;
EV << j->first.OFB_ETH_DST <<endl;
EV << j->first.OFB_ETH_TYPE <<endl;
j++;
}
EV << “Number of entries in “<< this->getFullName()<< “:” <<entry_map.size() << endl;
size = entry_map.size();
}
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