Print Routing Table

[netwo...@gmail.com]

Hi,

To gather more information, i want to print Routing Tables

Ptr<RoutingProtocol> routing = node -> GetObject<RoutingProtocol>();

std::vector<RoutingTableEntry> entry = routing -> GetRoutingTableEntries();

//        std::cout << "Routing table for device: " << Names::FindName(node)<< std::endl;

std::cout << "Routing table for device: " << node->GetId() << std::endl;

std::cout << "DestinyAddress\t\tNextAddress\t\tInterface\t\tDistance\n";

for (std::vector < RoutingTableEntry, std::allocator<RoutingTableEntry>::iterator i = entry.begin(); i != entry.end(); i++)

{

std::cout << i->destAddr << "\t\t"

         << i->nextAddr << "\t\t"

         << i->interface << "\t\t"

         << i->distance << std::endl;

}

But when i try to run this codes it show

/scratch/final-multipath.cc: In function ‘int main(int, char**)’:

../scratch/final-multipath.cc:323:6: error: ‘RoutingProtocol’ was not declared in this scope

  Ptr<RoutingProtocol> routing = node -> GetObject<RoutingProtocol>();

      ^

../scratch/final-multipath.cc:323:21: error: template argument 1 is invalid

  Ptr<RoutingProtocol> routing = node -> GetObject<RoutingProtocol>();

                     ^

../scratch/final-multipath.cc:323:31: error: invalid type in declaration before ‘=’ token

  Ptr<RoutingProtocol> routing = node -> GetObject<RoutingProtocol>();

                               ^

../scratch/final-multipath.cc:323:33: error: ‘node’ was not declared in this scope

  Ptr<RoutingProtocol> routing = node -> GetObject<RoutingProtocol>();

                                 ^

../scratch/final-multipath.cc:323:68: error: expected primary-expression before ‘)’ token

  Ptr<RoutingProtocol> routing = node -> GetObject<RoutingProtocol>();

                                                                    ^

../scratch/final-multipath.cc:324:14: error: ‘RoutingTableEntry’ was not declared in this scope

  std::vector<RoutingTableEntry> entry = routing -> GetRoutingTableEntries();

              ^

../scratch/final-multipath.cc:324:31: error: template argument 1 is invalid

  std::vector<RoutingTableEntry> entry = routing -> GetRoutingTableEntries();

                               ^

../scratch/final-multipath.cc:324:31: error: template argument 2 is invalid

../scratch/final-multipath.cc:324:39: error: invalid type in declaration before ‘=’ token

  std::vector<RoutingTableEntry> entry = routing -> GetRoutingTableEntries();

                                       ^

../scratch/final-multipath.cc:324:49: error: base operand of ‘->’ is not a pointer

  std::vector<RoutingTableEntry> entry = routing -> GetRoutingTableEntries();

                                                 ^

../scratch/final-multipath.cc:328:72: error: type/value mismatch at argument 1 in template parameter list for ‘template<class> class std::allocator’

  for (std::vector < RoutingTableEntry, std::allocator<RoutingTableEntry>::iterator i = entry.begin(); i != entry.end(); i++)

                                                                        ^

../scratch/final-multipath.cc:328:72: error:   expected a type, got ‘RoutingTableEntry’

../scratch/final-multipath.cc:328:100: error: type/value mismatch at argument 1 in template parameter list for ‘template<class _Tp, class _Alloc> class std::vector’

  for (std::vector < RoutingTableEntry, std::allocator<RoutingTableEntry>::iterator i = entry.begin(); i != entry.end(); i++)

                                                                                                    ^

../scratch/final-multipath.cc:328:100: error:   expected a type, got ‘RoutingTableEntry’

../scratch/final-multipath.cc:328:100: error: template argument 2 is invalid

../scratch/final-multipath.cc:328:103: error: name lookup of ‘i’ changed [-Werror]

  for (std::vector < RoutingTableEntry, std::allocator<RoutingTableEntry>::iterator i = entry.begin(); i != entry.end(); i++)

                                                                                                       ^

In file included from ../scratch/final-multipath.cc:6:0:

../scratch/../src/ospf/model/ipv4-ospf-routing.cc:27:5: error:   matches this ‘i’ under ISO standard rules [-Werror]

 int i,vs,vd,l,c,f1,f2;int npaths=7;

     ^

../scratch/final-multipath.cc:300:64: error:   matches this ‘i’ under old rules [-Werror]

  for (std::map<FlowId, FlowMonitor::FlowStats>::const_iterator i = stats.begin (); i != stats.end (); i++)

                                                                ^

../scratch/final-multipath.cc:328:114: error: request for member ‘end’ in ‘entry’, which is of non-class type ‘int’

  for (std::vector < RoutingTableEntry, std::allocator<RoutingTableEntry>::iterator i = entry.begin(); i != entry.end(); i++)

                                                                                                                  ^

../scratch/final-multipath.cc:330:17: error: base operand of ‘->’ is not a pointer

   std::cout << i->destAddr << "\t\t"

                 ^

../scratch/final-multipath.cc:331:17: error: base operand of ‘->’ is not a pointer

             << i->nextAddr << "\t\t"

                 ^

../scratch/final-multipath.cc:332:17: error: base operand of ‘->’ is not a pointer

             << i->interface << "\t\t"

                 ^

../scratch/final-multipath.cc:333:17: error: base operand of ‘->’ is not a pointer

             << i->distance << std::endl;

                 ^

what am i doing wrong,

a little point to right direction would be appreciated.

Thanks

PS. I have attached my code in which i want routing table output.

Regards

V 

[Krishna Bharadwaj]

Hi,

Mention the protocol which you are using, Routing Protocol is the name given in olsr. To use that you must specify like this --
Ptr <ns3::olsr::RoutingProtocol>. If you're not using olsr then specify that particular routing protocol in the pointer definition. Of course I didn't find any such thing in your code.

Secondly don't use const_iterator i. Instead use and try this

for (std::map<FlowId, FlowMonitor::FlowStats>::iterator i = stats.begin (); i != stats.end (); i++)

Regards,
Krishna.

[Konstantinos]

I would suggest to create a simpler PrintRoutingTable method in your routing protocol, as required by the abstract Ipv4RoutingProtocol class

https://www.nsnam.org/docs/doxygen/classns3_1_1_ipv4_routing_protocol.html#a86ad3fc1d17b06b6553a13b03d7e8cb4

[netwo...@gmail.com]

Hi,

Thank you Mr. K and Mr. K.B

I will work on that and hopefully i will get what i want.

Regards

V