[ns] trace file ns

[El hadi Cherkaoui]

hi all,

i run the wifi_wimax.tcl scirpt of the ns-Nist-mob and the out.tr give me that (the first lines) :

s -t 0.007345294 -Hs 5 -Hd -2 -Ni 5 -Nx 1000.00 -Ny 1000.00 -Nz 0.00 -Ne -1.000000 -Nl MAC -Nw --- -Ma 0 -Md 0 -Ms 0 -Mt 0 
s -t 0.007389739 -Hs 5 -Hd -2 -Ni 5 -Nx 1000.00 -Ny 1000.00 -Nz 0.00 -Ne -1.000000 -Nl MAC -Nw --- -Ma 0 -Md 0 -Ms 0 -Mt 0 
s -t 0.007434183 -Hs 5 -Hd -2 -Ni 5 -Nx 1000.00 -Ny 1000.00 -Nz 0.00 -Ne -1.000000 -Nl MAC -Nw --- -Ma 0 -Md 0 -Ms 0 -Mt 0 
s -t 0.007478627 -Hs 5 -Hd -2 -Ni 5 -Nx 1000.00 -Ny 1000.00 -Nz 0.00 -Ne -1.000000 -Nl MAC -Nw --- -Ma 0 -Md 0 -Ms 0 -Mt 0 

can someone tell me what's Hs, Hd, Ni .... because when i see the struct a trace file it should:
Event | time | source node | dest node | packet type | packet lengh | flag ....

thanx for helping