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[ns] how to implement snoop in wireless LAN environment????



hi,

i've tried to run wireless2.tcl and
wired-cum-wireless-sim.tcl scripts. And it runs well
(i think)  after a little bit  correction made.
now, i wondered, why  does it not  run when i attach
LLSnoop in link layer?

set $opt(ll) LL  changed to become set $opt(ll)
LL/LLSnoop

#ns wireless2.tcl
num_nodes is set 3
***NOTE:no connection pattern specified.
Loading scenario file...
Load complete...
Starting simulation...
warning: no class variable Snoop::debug_

	see tcl-object.tcl in tclcl for info about this
warning.
warning: Route to base_stn not known: dropping pkt
warning: no class variable Snoop::debug_

	see tcl-object.tcl in tclcl for info about this
warning.
warning: Route to base_stn not known: dropping pkt
warning: no class variable Snoop::debug_

	see tcl-object.tcl in tclcl for info about this
warning.

#ns wired-cum-wireless-sim.tcl
num_nodes is set 5
Loading connection pattern....
Loading scenario file...
Load complete...
Starting simulation...
warning: no class variable Snoop::debug_

	see tcl-object.tcl in tclcl for info about this
warning.
warning: Route to base_stn not known: dropping pkt
warning: no class variable Snoop::debug_

	see tcl-object.tcl in tclcl for info about this
warning.
warning: Route to base_stn not known: dropping pkt

any suggest to help me to solve this problem?

Note:
-i use ns-allinone-2.1b7a run on Linux RedHat 6.2
-snoop.cc in ns have been modified with Snoop.patch
 

regards,
dade


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