How to Display RTS/CTS Packet Type in NS2 New Trace Format

There are several posts on NS2 user mailing list explaining how to display RTS/CTS packet type in NS2 trace file. However, I failed to adopt them in NS 2.26 with new trace format. Here is my solution which just uses code written for old trace format. You only need to modify ns-2.26/trace/cmu-trace.cc in the following way and I think this solution can also work for NS versions later than 2.26.

void CMUTrace::format_mac(Packet *p, const char *why, int offset)
{
    struct hdr_cmn *ch = HDR_CMN(p);
     ......

    } else if (newtrace_) {
      sprintf(pt_->buffer() + offset,"-Ma %x -Md %x -Ms %x -Mt %s ",
        mh->dh_duration,ETHER_ADDR(mh->dh_ra),ETHER_ADDR(mh->dh_ta),
        ((ch->ptype() == PT_MAC) ? (
          (mh->dh_fc.fc_subtype == MAC_Subtype_RTS) ? "RTS" :
          (mh->dh_fc.fc_subtype == MAC_Subtype_CTS) ? "CTS" :
          (mh->dh_fc.fc_subtype == MAC_Subtype_ACK) ? "ACK" :
          "UNKN"
        ) : packet_info.name(ch->ptype())));
    } else {
    ...

Here is an exmaple NS2 trace file which displays the RTS/CTS/ACK information of MAC layer frame.

r -t 0.003583515 -Hs 0 -Hd -2 ... -Nl MAC -Nw --- -Ma 0 -Md 0 -Ms 0 -Mt ACK
s -t 0.003853348 -Hs 8 -Hd -2 ...-Nl MAC -Nw --- -Ma 2ff -Md 0 -Ms 8 -Mt RTS
r -t 0.004125515 -Hs 0 -Hd -2 ... -Nl MAC -Nw --- -Ma 2ff -Md 0 -Ms 8 -Mt RTS
s -t 0.004135515 -Hs 0 -Hd -2 ... -Nl MAC -Nw --- -Ma 1fd -Md 8 -Ms 0 -Mt CTS
r -t 0.004383682 -Hs 8 -Hd -2 ... -Nl MAC -Nw --- -Ma 1fd -Md 8 -Ms 0 -Mt CTS

Sourced from http://www.cse.msu.edu/~wangbo1/ns2/nshowto7.html

Icons have all changed into generic icons.

My Desktop icons have all changed into generic icons. How can I get the original icons back?

Answer:
You can try resetting the icon cache by making a change to the cache and then changing it back. Here's how:

1. Right click an empty area of your Desktop
2. Select Properties
3. Select the Appearance tab
4. Choose the Advanced button
5. In the "Item:" drop down menu, click the entry titled 'Icon'
6. Using the up or down arrows, change the number displayed
7. Click OK
8. Using the above instructions, change the value of step #6 back to its original position.