用dynamips做ONT实验时，在做ONT实验的QOS实验，想问下下面的配置怎么去实现，我一直配置不了，请哪位高手帮忙一下
TrafGen# tgn。
TrafGen(TGN:OFF,Fa0/0:none)#
Copy and paste the following configuration to a text editor. Replace
$R1-MAC$ in the highlighted line in the configuration below with R1’s
MAC address from Step 1. If you are using a different source interface
for generated traffic, replace all instances of “fastethernet0/0” with
the appropriate port. If you are using an outbound serial interface,
you do not need to specify an l2-dest and should remove the highlighted
line entirely. To exit the TGN prompt, use the end command.
fastethernet0/0
add tcp
rate 1000
l2-dest $R1-MAC$
l3-src 172.16.10.4
l3-dest 172.16.20.4
l4-dest 23
length random 16 to 1500
burst on
burst duration off 1000 to 2000
burst duration on 1000 to 3000
add fastethernet0/0 1
l4-dest 80
data ascii 0 GET /index.h
tml HTTP/1.1
add fastethernet0/0 1
l4-dest 21
add fastethernet0/0 1
l4-dest 123
add fastethernet0/0 1
l4-dest 110
add fastethernet0/0 1
l4-dest 25
add fastethernet0/0 1
l4-dest 22
add fastethernet0/0 1
l4-dest 6
