Spin NS2 code

How to implement Spin Protocol Projects using NS2 Simulator code.

What is Spin Protocol?Benfits of implementing Spin Protocol Ns2 Code?

SPIN protocols are resource aware and adaptive.SPIN protocols are based on two key mechanisms namely negotiation and resource adaptation.Spin protocol was designed to improve classic flooding protocols and overcome the problems they may cause, for example, implosion and overlap.Major benefit of Implementing spin protocol Ns2 code is of its flexibility.

 

Architecture-of-Spin-Routing-Protocol

Advantages of spin routing protocol:

  • Topological changes are localized since each node needs to know only its single-hop neighbors.
  • It gives a factor of 3.5 less than flooding in terms of energy dissipation and meta-data negotiation almost halves the redundant data.
  • It supports broadcast transmissions.
  • Use meta-data negotiations to eliminate the transmission of redundant data throughout the network.

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Sample code for spin routing protocol:
From this code we learn the information of how data packets are handled in spin routing protocols.
PacketHeaderClass::PacketHeaderClass(const char* classname, int hdrlen) :
TclClass(classname), hdrlen_(hdrlen), offset_(0)
{  }
 
 TclObject* PacketHeaderClass::create(int, const char*const*)
{ return (0); }
 
void PacketHeaderClass::bind()
{
 TclClass::bind();
Tcl& tcl = Tcl::instance();
tcl.evalf("%s set hdrlen_ %d", classname_, hdrlen_);
export_offsets();
add_method("offset");
 }
 
void PacketHeaderClass::export_offsets()
{ }
 
void PacketHeaderClass::field_offset(const char* fieldname, int offset)
{
 Tcl& tcl = Tcl::instance();
tcl.evalf("%s set offset_(%s) %d", classname_, fieldname, offset);
}
 
int PacketHeaderClass::method(int ac, const char*const* av)
{
Tcl& tcl = Tcl::instance();
int argc = ac - 2;
const char*const* argv = av + 2;
if (argc == 3) {
 
if (strcmp(argv[1], "offset") == 0) {
if (offset_) {
*offset_ = atoi(argv[2]);
return TCL_OK;
}
tcl.resultf("Warning: cannot set offset_ for %s",
    classname_);
return TCL_OK;
}}
else if (argc == 2) {
 if (strcmp(argv[1], "offset") == 0) {
if (offset_) {
tcl.resultf("%d", *offset_);
return TCL_OK;
}}}
return TclClass::method(argc, argv); }


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