I'm sorry...
You can get zero handover time only when wired node sends udp traffic
to wireless node..
2007/4/27, Youngmin Kim <[EMAIL PROTECTED]>:
> Hello.
> This is some different story..
> After I changed routing protocol from DSDV to AODV, I experienced zero
> handover time..
> I hope this helps you..
>
> 2006/5/23, altaf hussain <[EMAIL PROTECTED]>:
> >
> > Hi Users. I hope al of u would be OK. I have been working on Mobile IP v4
> > implemented in ns-2.28. There is a bug in the implementation of Mobile IP
> > in ns2 and that have been reported by Michal in AUGUST 2005.
> > The modifications indicated by Michal are infact confusing me.
> > The function to get the current mobile node get_node_michu() is giving
> > problems while compiling.
> > I am posting the modificatins done by Michal. Can any one really give me
> > a better and working modification in ns-2.28
> > Thanks
> >
> > Michal
> >
> > PS. Below there is ll:recv() function with my modifications.
> >
> > _/*
> > This shall be added in arp.cc
> > MobileNode*
> > ARPTable::get_node_michu()
> > {
> > return node_;
> > }
> > */
> >
> > void LL::recv(Packet* p, Handler* _/*h*/)
> > {
> > hdr_cmn *ch = HDR_CMN(p);
> > hdr_arp *ah = HDR_ARP(p);
> > hdr_mip *miph = hdr_mip::access(p);
> > hdr_ip *ip_h = hdr_ip::access(p);
> >
> >
> >
> > //char *mh = (char*) HDR_MAC(p);
> > //struct hdr_sr *hsr = HDR_SR(p);
> >
> > _/*
> > * Sanity Check
> > */
> > assert(initialized());
> >
> > //if(p->incoming) {
> > //p->incoming = 0;
> > //}
> > // XXXXX NOTE: use of incoming flag has been depracated; In order to track
> > direction of pkt flow, direction_ in hdr_cmn is used instead. see packet.h
> > for details.
> >
> > // If direction = UP, then pass it up the stack
> > // Otherwise, set direction to DOWN and pass it down the stack
> > if(ch->direction() == hdr_cmn::UP) {
> > //if(mac_->hdr_type(mh) == ETHERTYPE_ARP)
> > if(ch->ptype_ == PT_ARP){
> >
> >
> > if(ah->arp_spa == 4194305) // I mean Mobile Node's IP here. Not very
> > elegant way to do it
> > {
> > if(licznik < 10)
> > {
> > nsaddr_t src_arp = arptable_->get_node_michu()->address(); // this host's
> > IP addr
> > nsaddr_t dst_arp = miph->ha_; //Home Address of Mobile Node
> > arptable_->arprequest(src_arp, dst_arp, this);
> >
> > licznik++;
> > //printf(" src_arp %d\n", src_arp);
> > //printf(" dst_arp %d\n", dst_arp);
> > //printf("arprequest %d\n", licznik);
> > }
> > }
> >
> > if(ah->arp_spa == 4194304) // I mean Mobile Node's IP here. Not very
> > elegant way to do it
> > {
> > if(licznik2 < 10)
> > {
> > nsaddr_t src_arp = arptable_->get_node_michu()->address(); // this host's
> > IP addr
> > nsaddr_t dst_arp = miph->ha_; //Home Address of Mobile Node
> > arptable_->arprequest(src_arp, dst_arp, this);
> >
> > licznik2++;
> > //printf(" src_arp %d\n", src_arp);
> > //printf(" dst_arp %d\n", dst_arp);
> > //printf("arprequest %d\n", licznik);
> > }
> > }
> >
> > if(ah->arp_spa == 8388608) // I mean Mobile Node's IP here. Not very
> > elegant way to do it
> > {
> > if(licznik3 < 10)
> > {
> > nsaddr_t src_arp = arptable_->get_node_michu()->address(); // this host's
> > IP addr
> > nsaddr_t dst_arp = miph->ha_; //Home Address of Mobile Node
> > arptable_->arprequest(src_arp, dst_arp, this);
> >
> > licznik3++;
> > //printf(" src_arp %d\n", src_arp);
> > //printf(" dst_arp %d\n", dst_arp);
> > //printf("arprequest %d\n", licznik);
> > }
> > }
> >
> >
> > arptable_->arpinput(p, this);
> > //printf("arpinput %d\n", licznik);
> > }
> > else
> > {
> >
> > if((miph->type_ == MIPT_REG_REQUEST) || (miph->type_ == MIPT_REG_REPLY) ||
> > (miph->type_ == MIPT_SOL)) //in FA
> > {
> > nsaddr_t src = arptable_->get_node_michu()->address(); // this host's IP
> > addr
> > nsaddr_t dst = miph->ha_; //Home Address of Mobile Node
> > arptable_->arprequest(src, dst, this);
> >
> > //uptarget_ ? sendUp(p) : drop(p);
> > //printf(" src %d\n", src);
> > //printf(" dst %d\n", dst);
> > //printf("uptarget_ MIPT_REG_REQUEST\n");
> >
> > }
> >
> >
> > uptarget_ ? sendUp(p) : drop(p);
> > //printf("uptarget_\n");
> >
> > }
> > return;
> > }
> >
> >
> > if((miph->type_) == MIPT_REG_REQUEST)
> > {
> > //double local_time = Scheduler::instance().clock();
> > //printf(" local_time MIPT_REG_REQUEST %.9f\n", local_time);
> >
> > // printf("MIPT_REG_REQUEST %d \n",
> > arptable_->get_node_michu()->address());
> > nsaddr_t src_down = 4194305;
> > //arptable_->get_node_michu()->address(); // this host's IP addr
> > nsaddr_t dst_down = miph->coa_; //miph->coa_;
> > arptable_->arprequest(src_down, dst_down, this);
> > }
> > else if((miph->type_) == MIPT_ADS)
> > {
> > //double local_time = Scheduler::instance().clock();
> > //printf(" local_time MIPT_REG_REQUEST %.9f\n", local_time);
> >
> > nsaddr_t src_down = 4194305;
> > //arptable_->get_node_michu()->address(); // this host's IP addr
> > nsaddr_t dst_down = miph->coa_;
> > arptable_->arprequest(src_down, dst_down, this);
> > }
> >
> > _/*
> > nsaddr_t src_down = 4194305;
> > nsaddr_t dst_down = 8388608;
> > arptable_->arprequest(src_down, dst_down, this);
> >
> > nsaddr_t src_down = 8388608;
> > nsaddr_t dst_down = 4194305;
> > arptable_->arprequest(src_down, dst_down, this);
> >
> > nsaddr_t src_down = 8388608;
> > nsaddr_t dst_down = 4194304;
> > arptable_->arprequest(src_down, dst_down, this);
> > */
> >
> >
> > double local_time = Scheduler::instance().clock();
> > if(local_time < 13)
> > {
> > printf(" time %.9f node %d packet %s\n", local_time,
> > arptable_->get_node_michu()->address(), packet_info.name(ch->ptype()));
> > }
> >
> >
> > ch->direction() = hdr_cmn::DOWN;
> > sendDown(p);
> > }
> >
> >
> >
> > ---------------------------------
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> >
>
