$ns use-newtrace ：使用新格式。（語句在$ns_ trace-all $tracefd 之前）

new trace格式定義

N: Node Property

I: IP Level Packet Information

H: Next Hop Information

M: MAC Level Packet Information

P: Packet Specific Information

Flag????? Type????????? Value

s(r,d,f) s(r,d,f)????? r Send；r: Receive；d: Drop；f: Forward

-t??????? double??????? Time (* For Global Setting)

-Ni?????? int?????????? Node ID

-Nx?????? double??????? Node X Coordinate

-Ny?????? double??????? Node Y Coordinate

-Nz?????? double??????? Node Z Coordinate

-Ne?????? double??????? Node Energy Level

-Nl?????? string??????? Network trace Level (AGT, RTR, MAC, etc.)

-Nw?????? string??????? Drop Reason

-Hs?????? int?????????? Hop source node ID

-Hd?????? int?????????? Hop destination Node ID, -1, -2 -Ma?????? hexadecimal?? Duration

-Ms?????? hexadecimal?? Source Ethernet Address

-Md?????? hexadecimal?? Destination Ethernet Address

-Mt?????? hexadecimal?? Ethernet Type

-P??????? string??????? Packet Type (arp, dsr, imep, tora, etc.)

-Pn?????? string??????? Packet Type (cbr, tcp)

必 須要注意的是-Hd的值經(jīng)常為-1 or -2. ?? -1意味著該分組是廣播分組。?? -2意味著該分組的目的節(jié)點(diǎn)還沒有被設(shè)置，在應(yīng)用代理層和路由代理層的交互中較常用。????? Between (-Nl AGT) and routing (-Nl RTR) levels.?????

依據(jù)分組的類型，可能會(huì)有下述標(biāo)志被使用：

CBR Trace

Flag????? Type????????? Value

-Pi??????? int????????? Sequence Number

-Pf??????? int????????? Number Of Times Packet Was Forwarded

-Po??????? int????????? Optimal Number Of Forwards

IP Trace

Flag????? Type????????? Value

-Is?????? int.int?????? Source Address And Port

-Id?????? int.int?????? Destination Address And Port

-It?????? string??????? Packet Type

-Il?????? int?????????? Packet Size

-If?????? int?????????? Flow ID

-Ii?????? int?????????? Unique ID

-Iv?????? int?????????? TTL Value

AODV Trace

Flag????? Type????????? Value

-Pt?????? hexadecimal?? Type

-Ph?????? int?????????? Hop Count

-Pb?????? int?????????? Broadcast ID

-Pd?????? int?????????? Destination

-Pds????? int?????????? Destination Sequence Number

-Ps?????? int?????????? Source -

Pss????? int?????????? Source Sequence Number

-Pl?????? double??????? Lifetime

-Pc?????? string??????? Operation (REQUEST, REPLY, ERROR, HELLO)

ARP Trace

Flag????? Type????????? Value

-Po?????? string??????? Request or Reply

-Pms????? int?????????? Source MAC Address

-Ps?????? int?????????? Source Address

-Pmd????? int?????????? Destination MAC Address

-Pd?????? int?????????? Destination Address

s -t 10.000000000 -Hs 0 -Hd -2 -Ni 0 -Nx 100.00 -Ny 200.00 -Nz 0.00 -Ne -1.000000 -Nl AGT -Nw --- -Ma 0 -Md 0 -Ms 0 -Mt 0 -Is 0.0 -Id 2.0 -It cbr -Il 512 -If 0 -Ii 0 -Iv 32 -Pn cbr -Pi 0 -Pf 0 -Po 0

r -t 10.000000000 -Hs 0 -Hd -2 -Ni 0 -Nx 100.00 -Ny 200.00 -Nz 0.00 -Ne -1.000000 -Nl RTR -Nw --- -Ma 0 -Md 0 -Ms 0 -Mt 0 -Is 0.0 -Id 2.0 -It cbr -Il 512 -If 0 -Ii 0 -Iv 32 -Pn cbr -Pi 0 -Pf 0 -Po 0

s -t 10.000000000 -Hs 0 -Hd -1 -Ni 0 -Nx 100.00 -Ny 200.00 -Nz 0.00 -Ne -1.000000 -Nl RTR -Nw --- -Ma 0 -Md 0 -Ms 0 -Mt 0 -Is 0.0 -Id 2.0 -It cbr -Il 532 -If 0 -Ii 0 -Iv 30 -Pn cbr -Pi 0 -Pf 0 -Po 0

r -t 10.004812500 -Hs 1 -Hd -1 -Ni 1 -Nx 250.00 -Ny 200.00 -Nz 0.00 -Ne -1.000000 -Nl RTR -Nw --- -Ma 0 -Md ffffffff -Ms 0 -Mt 800 -Is 0.0 -Id 2.0 -It cbr -Il 532 -If 0 -Ii 0 -Iv 30 -Pn cbr -Pi 0 -Pf 1 -Po 0

f -t 10.020795609 -Hs 1 -Hd -1 -Ni 1 -Nx 250.00 -Ny 200.00 -Nz 0.00 -Ne -1.000000 -Nl RTR -Nw --- -Ma 0 -Md ffffffff -Ms 0 -Mt 800 -Is 0.0 -Id 2.0 -It cbr -Il 532 -If 0 -Ii 0 -Iv 29 -Pn cbr -Pi 0 -Pf 1 -Po 0

r -t 10.025728109 -Hs 0 -Hd -1 -Ni 0 -Nx 100.00 -Ny 200.00 -Nz 0.00 -Ne -1.000000 -Nl RTR -Nw --- -Ma 0 -Md ffffffff -Ms 1 -Mt 800 -Is 0.0 -Id 2.0 -It cbr -Il 532 -If 0 -Ii 0 -Iv 29 -Pn cbr -Pi 0 -Pf 2 -Po 0

d -t 10.025728109 -Hs 0 -Hd -1 -Ni 0 -Nx 100.00 -Ny 200.00 -Nz 0.00 -Ne -1.000000 -Nl RTR -Nw LOOP -Ma 0 -Md ffffffff -Ms 1 -Mt 800 -Is 0.0 -Id 2.0 -It cbr -Il 532 -If 0 -Ii 0 -Iv 29 -Pn cbr -Pi 0 -Pf 2 -Po 0

r -t 10.025728109 -Hs 2 -Hd -1 -Ni 2 -Nx 400.00 -Ny 200.00 -Nz 0.00 -Ne -1.000000 -Nl AGT -Nw --- -Ma 0 -Md ffffffff -Ms 1 -Mt 800 -Is 0.0 -Id 2.0 -It cbr -Il 532 -If 0 -Ii 0 -Iv 29 -Pn cbr -Pi 0 -Pf 2 -Po 0

1.?????? 在第10S時(shí) 一個(gè)ID為0的節(jié)點(diǎn) 應(yīng)用層發(fā)出了一個(gè)CBR分組，這個(gè)分組的UID為0長度為512，源地址0：0，目標(biāo)地址2：0，分組生存周期32

2.?????? 在第10S時(shí) 一個(gè)ID為0的節(jié)點(diǎn) 路由層接收了一個(gè)CBR分組，這個(gè)分組的UID為0長度為512，源地址0：0，目標(biāo)地址2：0，分組生存周期32

3.?????? 在第10S時(shí) 一個(gè)ID為0的節(jié)點(diǎn) 路由層發(fā)送了一個(gè)CBR分組，這個(gè)分組的UID為0長度為532，源地址0：0，目標(biāo)地址2：0，分組生存周期30

4.?????? 在第10.004812500S時(shí) 一個(gè)ID為1的節(jié)點(diǎn) 路由層接收了一個(gè)CBR分組，這個(gè)分組的UID為0長度為532，源地址0：0，目標(biāo)地址2：0，分組生存周期30

5.?????? 在第10.020795609S時(shí) 一個(gè)ID為1的節(jié)點(diǎn) 路由層轉(zhuǎn)發(fā)收了一個(gè)CBR分組，這個(gè)分組的UID為0長度為532，源地址0：0，目標(biāo)地址2：0，分組生存周期29

6.?????? 在第10.025728109S時(shí) 一個(gè)ID為0的節(jié)點(diǎn) 路由層接收了一個(gè)CBR分組，這個(gè)分組的UID為0長度為532，源地址0：0，目標(biāo)地址2：0，分組生存周期20

7.?????? 在第10.025728109S時(shí) 一個(gè)ID為0的節(jié)點(diǎn) 路由層丟掉了一個(gè)分組，原因是路由環(huán)回。

8.?????? 在第10.025728109S時(shí) 一個(gè)ID為2的節(jié)點(diǎn) 應(yīng)用層接收了一個(gè)CBR分組，這個(gè)分組的UID為0長度為532，源地址0：0，目標(biāo)地址2：0，分組生存周期30

可看出新格式更容易看懂，并且很容易應(yīng)用工具進(jìn)行分析，更適合于WSN仿真。