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Old 02-22-2013, 09:14 PM   #31
yashwanth58
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oh ok,but for post @21 also i am getting same error..
 
Old 02-22-2013, 10:59 PM   #32
yashwanth58
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Sir thanks a lot,atlast i got it..i have to use ns-bgp then tcl script file:-)..


Sir i want to create bgp path between 2 and 13 autunomous system,how can i write ths tcl script for this(please check out below link),if possible please help me...

https://docs.google.com/file/d/0B2X6...it?usp=sharing


once again thanks a lot for your cooperation:-)....
Last edited by yashwanth58; 02-22-2013 at 11:01 PM.
 
Old 02-23-2013, 06:01 AM   #33
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# 32 .

Probably edit one of the files.tcl, that already has a lookalike setup.
-
Attached Thumbnails
Click image for larger version Name: Network.topology.with.bottleneck.and.alternative.paths.png Views: 35 Size: 14.3 KB ID: 11918  
Last edited by knudfl; 02-23-2013 at 11:38 AM.
 
Old 02-23-2013, 09:39 AM   #34
yashwanth58
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ok ok thank you very much...:-)
 
Old 02-24-2013, 11:19 PM   #35
yashwanth58
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sir i tried for the above topology,but i am not able to do it..if possible have a look at this once

https://docs.google.com/file/d/0B2X6...it?usp=sharing

i edited in select.tcl of test folder..
i want to send packets via AS 1-3-5-7-9-12 and also other AS also should be present..

Code:
#
# new2.tcl
#

puts ""
puts "SELECT Validation Test: "
puts ""
puts " A \"triangle\" consisting of three ASes.  Each AS has one"
puts " BGP-speaking router.  Each router is connected directly to"
puts " the routers in each neighboring AS."
puts ""
puts "    AS----AS "
puts "     \\    /  "
puts "      \\  /   "
puts "       AS    "
puts ""


set nf [open new.nam w]
set ns [new Simulator]
$ns namtrace-all $nf

$ns node-config -BGP ON
set n0 [$ns node 0:10.0.0.1]
set n1 [$ns node 1:10.0.1.1]
set n2 [$ns node 2:10.0.2.1]
set n3 [$ns node 3:10.0.3.1]
set n4 [$ns node 4:10.0.4.1]
set n5 [$ns node 5:10.0.5.1]
set n6 [$ns node 6:10.0.6.1]
set n7 [$ns node 7:10.0.7.1]
set n8 [$ns node 8:10.0.8.1]
set n9 [$ns node 9:10.0.9.1]
set n10 [$ns node 10:10.0.10.1]
set n11 [$ns node 11:10.0.11.1]
set n12 [$ns node 12:10.0.12.1]
set n13 [$ns node 13:10.0.13.1]
$ns node-config -BGP OFF

$ns duplex-link $n1 $n3 1Mb 1ms DropTail
$ns duplex-link $n3 $n5 1Mb 1ms DropTail
$ns duplex-link $n5 $n7 1Mb 1ms DropTail
$ns duplex-link $n7 $n9 1Mb 1ms DropTail
$ns duplex-link $n9 $n12 1Mb 1ms DropTail

set bgp_agent1 [$n1 get-bgp-agent]
$bgp_agent1 bgp-id 10.0.1.1
$bgp_agent1 neighbor 10.0.3.1 remote-as 3

set bgp_agent3 [$n3 get-bgp-agent]
$bgp_agent3 bgp-id 10.0.3.1
$bgp_agent3 neighbor 10.0.0.1 remote-as 0
$bgp_agent3 neighbor 10.0.1.1 remote-as 1
$bgp_agent3 neighbor 10.0.2.1 remote-as 2
$bgp_agent3 neighbor 10.0.4.1 remote-as 4
$bgp_agent3 neighbor 10.0.5.1 remote-as 5
$bgp_agent3 neighbor 10.0.6.1 remote-as 6

set bgp_agent5 [$n5 get-bgp-agent]
$bgp_agent5 bgp-id 10.0.5.1
$bgp_agent5 neighbor 10.0.3.1 remote-as 3
$bgp_agent5 neighbor 10.0.4.1 remote-as 4
$bgp_agent5 neighbor 10.0.6.1 remote-as 6
$bgp_agent5 neighbor 10.0.7.1 remote-as 7

set bgp_agent7 [$n7 get-bgp-agent]
$bgp_agent7 bgp-id 10.0.7.1
$bgp_agent7 neighbor 10.0.5.1 remote-as 5
$bgp_agent7 neighbor 10.0.8.1 remote-as 8
$bgp_agent7 neighbor 10.0.9.1 remote-as 9
$bgp_agent7 neighbor 10.0.10.1 remote-as 10

set bgp_agent9 [$n9 get-bgp-agent]
$bgp_agent9 bgp-id 10.0.9.1
$bgp_agent9 neighbor 10.0.7.1 remote-as 7
$bgp_agent9 neighbor 10.0.8.1 remote-as 8
$bgp_agent9 neighbor 10.0.10.1 remote-as 10
$bgp_agent9 neighbor 10.0.11.1 remote-as 11
$bgp_agent9 neighbor 10.0.12.1 remote-as 12
$bgp_agent9 neighbor 10.0.13.1 remote-as 13

set bgp_agent12 [$n12 get-bgp-agent]
$bgp_agent12 bgp-id 10.0.12.1
$bgp_agent12 neighbor 10.0.9.1 remote-as 9

$ns at 0.35 "puts \"\n time: 0.35 \n n1 (ip_addr 10.0.1.1) \
                       defines a network 10.0.1.0/24.\""
$ns at 0.35 "$bgp_agent1 network 10.0.1.0/24"

$ns at 0.55 "puts \"\n time: 0.55 \n n3 (ip_addr 10.0.3.1) \
                       defines a network 10.0.3.0/24.\""
$ns at 0.55 "$bgp_agent3 network 10.0.3.0/24"

$ns at 0.75 "puts \"\n time: 0.75 \n n5 (ip_addr 10.0.2.1) \
                       defines a network 10.0.5.0/24.\""
$ns at 0.75 "$bgp_agent5 network 10.0.5.0/24"

$ns at 0.95 "puts \"\n time: 0.95 \n n7 (ip_addr 10.0.7.1) \
                       defines a network 10.0.7.0/24.\""
$ns at 0.95 "$bgp_agent7 network 10.0.7.0/24"

$ns at 1.15 "puts \"\n time: 1.15 \n n9 (ip_addr 10.0.9.1) \
                       defines a network 10.0.9.0/24.\""
$ns at 1.15 "$bgp_agent9 network 10.0.9.0/24"

$ns at 1.45 "puts \"\n time: 1.45 \n n12 (ip_addr 10.0.12.1) \
                       defines a network 10.0.12.0/24.\""
$ns at 1.45 "$bgp_agent12 network 10.0.12.0/24"

$ns at 39.0 "puts \"\n time: 39 \
                    \n dump routing tables in all BGP agents: \n\""
$ns at 39.0 "$bgp_agent1 show-routes"
$ns at 39.0 "$bgp_agent3 show-routes"
$ns at 39.0 "$bgp_agent5 show-routes"
$ns at 39.0 "$bgp_agent7 show-routes"
$ns at 39.0 "$bgp_agent9 show-routes"
$ns at 39.0 "$bgp_agent12 show-routes"

$ns at 40.0 "finish"

proc finish {} {
	global ns nf
	$ns flush-trace
	close $nf
	puts "Simulation finished. Executing nam..."
	exec nam new2.nam
	exit 0
}

puts "Simulation starts..."
$ns run


but i am getting this error

yashwanth@ubuntu:~/project$ ns-bgp new2.tcl

SELECT Validation Test:

A "triangle" consisting of three ASes. Each AS has one
BGP-speaking router. Each router is connected directly to
the routers in each neighboring AS.

AS----AS
\ /
\ /
AS

Simulation starts...
--- Classfier::no-slot{} default handler (tcl/lib/ns-lib.tcl) ---
_o30: no target for slot -1
_o30 type: Classifier/IPv4
content dump:
classifier _o30
0 offset
0 shift
2147483647 mask
0 slots
---------- Finished standard no-slot{} default handler ----------
yashwanth@ubuntu:~/project$
Last edited by yashwanth58; 02-24-2013 at 11:22 PM.
 
Old 02-25-2013, 12:20 PM   #36
knudfl
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# 35 . Looks like "node 0, 1, 2" is the maximum for bgp.

One more node added : Troubles.

Have you considered bgp++ ?
http://www.ece.gatech.edu/research/labs/MANIACS/BGP++/
http://www.ece.gatech.edu/research/labs/MANIACS/GTNetS/
http://www.ece.gatech.edu/research/l...downloads.html
http://www.ece.gatech.edu/research/l...t-10-08.tar.gz
> GTNetS-Oct-10-08.tar.gz
The application is Ubuntu specific, uses g++-4.1, libqt3-dev.
( OK with Ubuntu 8.04, 10.04 ).
... May be bgp++ can do the simulation(s) you want ?

-
 
Old 02-26-2013, 01:11 AM   #37
yashwanth58
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sir actually i got the simulation for this AS 1-3-5-7-9-12 sending packets from(1 to 12) but i need to show the other nodes(AS) also present in the network but there shouldn't be any packet flow from them..just i want to show neighbors presenting:-)
 
Old 02-26-2013, 04:22 AM   #38
knudfl
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# 37 .
Quote:
actually I got the simulation for this AS 1-3-5-7-9-12 sending packets from(1 to 12)
.
I want to show neighbors presenting
Right. That's why bgp++ was mentioned. Might behave different.

-
 
Old 03-19-2013, 11:43 PM   #39
tanmay288
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@yashwanth58 i am working on the similar project as yours on Autonomous system BGP simulation, if your problem is solved can u help me
 
Old 03-20-2013, 12:15 AM   #40
tanmay288
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Quote:
Originally Posted by knudfl View Post
# 21 : Almost looks like the original "ns-2.34/tcl/bgp/test/select.tcl" ?
If it is the original file, please edit the content to the right formatting.

The original file will display this ..
Code:
$ ./ns-bgp select.tcl 

SELECT Validation Test: 

 A "triangle" consisting of three ASes.  Each AS has one
 BGP-speaking router.  Each router is connected directly to
 the routers in each neighboring AS.
                                                                                                                              
    AS----AS                                                                                                                  
     \    /                                                                                                                   
      \  /                                                                                                                    
       AS                                                                                                                     
                                                                                                                              
Simulation starts...                                                                                                          
                                                                                                                              
 time: 0.25                                                                                                                   
 n0 (ip_addr 10.0.0.1)  defines a network 10.0.0.0/24.                                                                        
                                                                                                                              
 time: 0.251736 %%  router: 10.0.1.1 received msg from peer: 10.0.0.1 %%  event_type: *RecvUpdate* %%  connection_state: *Established* %%  received msg: wds: -  ads: 10.0.0.0/24 (0)                                                                       
                                                                                                                              
 time: 0.251736 %%  router: 10.0.2.1 received msg from peer: 10.0.0.1 %%  event_type: *RecvUpdate* %%  connection_state: *Established* %%  received msg: wds: -  ads: 10.0.0.0/24 (0)                                                                       
                                                                                                                              
 time: 0.253488 %%  router: 10.0.2.1 received msg from peer: 10.0.1.1 %%  event_type: *RecvUpdate* %%  connection_state: *Established* %%  received msg: wds: -  ads: 10.0.0.0/24 (1 0)                                                                     
                                                                                                                              
 time: 0.253488 %%  router: 10.0.1.1 received msg from peer: 10.0.2.1 %%  event_type: *RecvUpdate* %%  connection_state: *Established* %%  received msg: wds: -  ads: 10.0.0.0/24 (2 0)                                                                     
                                                                                                                              
 time: 0.35                                                                                                                   
 n1 (ip_addr 10.0.1.1)  defines a network 10.0.1.0/24.                                                                        
                                                                                                                              
 time: 0.351736 %%  router: 10.0.0.1 received msg from peer: 10.0.1.1 %%  event_type: *RecvUpdate* %%  connection_state: *Established* %%  received msg: wds: -  ads: 10.0.1.0/24 (1)                                                                       
                                                                                                                              
 time: 0.45                                                                                                                   
 n2 (ip_addr 10.0.2.1)  defines a network 10.0.2.0/24.                                                                        

 time: 0.451736 %%  router: 10.0.0.1 received msg from peer: 10.0.2.1 %%  event_type: *RecvUpdate* %%  connection_state: *Established* %%  received msg: wds: -  ads: 10.0.2.0/24 (2) 

 time: 27.2518 %%  router: 10.0.1.1 received msg from peer: 10.0.0.1 %%  event_type: *RecvUpdate* %%  connection_state: *Established* %%  received msg: wds: -  ads: 10.0.2.0/24 (0 2) 

 time: 27.2518 %%  router: 10.0.2.1 received msg from peer: 10.0.0.1 %%  event_type: *RecvUpdate* %%  connection_state: *Established* %%  received msg: wds: -  ads: 10.0.1.0/24 (0 1) 

 time: 27.2535 %%  router: 10.0.2.1 received msg from peer: 10.0.1.1 %%  event_type: *RecvUpdate* %%  connection_state: *Established* %%  received msg: wds: -  ads: 10.0.1.0/24 (1) 

 time: 27.2535 %%  router: 10.0.1.1 received msg from peer: 10.0.2.1 %%  event_type: *RecvUpdate* %%  connection_state: *Established* %%  received msg: wds: -  ads: 10.0.2.0/24 (2) 

 time: 27.3029 %%  router: 10.0.2.1 received msg from peer: 10.0.1.1 %%  event_type: *RecvUpdate* %%  connection_state: *Established* %%  received msg: wds: 10.0.2.0/24  ads: -

 time: 27.3029 %%  router: 10.0.1.1 received msg from peer: 10.0.2.1 %%  event_type: *RecvUpdate* %%  connection_state: *Established* %%  received msg: wds: 10.0.1.0/24  ads: -

 time: 27.3518 %%  router: 10.0.0.1 received msg from peer: 10.0.1.1 %%  event_type: *RecvUpdate* %%  connection_state: *Established* %%  received msg: wds: -  ads: 10.0.2.0/24 (1 2) 

 time: 27.4518 %%  router: 10.0.0.1 received msg from peer: 10.0.2.1 %%  event_type: *RecvUpdate* %%  connection_state: *Established* %%  received msg: wds: -  ads: 10.0.1.0/24 (2 1) 

 time: 39  
 dump routing tables in all BGP agents: 

BGP routing table of n0
BGP table version is 4, local router ID is 10.0.0.1
Status codes: * valid, > best, i - internal.
     Network            Next Hop       Metric  LocPrf  Weight Path 
*>   10.0.0.0/24        self                  -      -      -          
*>   10.0.1.0/24        10.0.1.1/32           -      -      - 1        
*>   10.0.2.0/24        10.0.2.1/32           -      -      - 2        

BGP routing table of n1
BGP table version is 6, local router ID is 10.0.1.1
Status codes: * valid, > best, i - internal.
     Network            Next Hop       Metric  LocPrf  Weight Path 
*>   10.0.0.0/24        10.0.0.1/32           -      -      - 0        
*>   10.0.1.0/24        self                  -      -      -          
*>   10.0.2.0/24        10.0.2.1/32           -      -      - 2        

BGP routing table of n2
BGP table version is 6, local router ID is 10.0.2.1
Status codes: * valid, > best, i - internal.
     Network            Next Hop       Metric  LocPrf  Weight Path 
*>   10.0.0.0/24        10.0.0.1/32           -      -      - 0        
*>   10.0.1.0/24        10.0.1.1/32           -      -      - 1        
*>   10.0.2.0/24        self                  -      -      -          

Simulation finished. Executing nam...
.. And nam will open OK.

-
i have run the test.tcl but my output differs from above output, am i missing something?
my output
Code:
[tanmay@Sai ns-2.34]$ ./ns b2.tcl

SELECT Validation Test: 

 A "triangle" consisting of three ASes.  Each AS has one
 BGP-speaking router.  Each router is connected directly to
 the routers in each neighboring AS.

    AS----AS 
     \    /  
      \  /   
       AS    

Simulation starts...

 time: 0.25 
 n0 (ip_addr 10.0.0.1)  defines a network 10.0.0.0/24.

 time: 0.35 
 n1 (ip_addr 10.0.1.1)  defines a network 10.0.1.0/24.

 time: 0.45 
 n2 (ip_addr 10.0.2.1)  defines a network 10.0.2.0/24.

 time: 39  
 dump routing tables in all BGP agents: 

BGP routing table of n0
BGP table version is 4, local router ID is 10.0.0.1
Status codes: * valid, > best, i - internal.
     Network            Next Hop       Metric  LocPrf  Weight Path 
*>   10.0.0.0/24        self                  -      -      -          
*>   10.0.1.0/24        10.0.1.1/32           -      -      - 1        
*>   10.0.2.0/24        10.0.2.1/32           -      -      - 2        

BGP routing table of n1
BGP table version is 6, local router ID is 10.0.1.1
Status codes: * valid, > best, i - internal.
     Network            Next Hop       Metric  LocPrf  Weight Path 
*>   10.0.0.0/24        10.0.0.1/32           -      -      - 0        
*>   10.0.1.0/24        self                  -      -      -          
*>   10.0.2.0/24        10.0.2.1/32           -      -      - 2        

BGP routing table of n2
BGP table version is 6, local router ID is 10.0.2.1
Status codes: * valid, > best, i - internal.
     Network            Next Hop       Metric  LocPrf  Weight Path 
*>   10.0.0.0/24        10.0.0.1/32           -      -      - 0        
*>   10.0.1.0/24        10.0.1.1/32           -      -      - 1        
*>   10.0.2.0/24        self                  -      -      -          

Simulation finished. Executing nam...
Last edited by tanmay288; 03-26-2013 at 01:03 AM.
 
Old 03-20-2013, 12:35 AM   #41
knudfl
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# 40 :

Please do not quote entire posts. A reference to post #24 will do.


No. Not easy to spot any difference.
When you have edited #40 to [/code] tags, may be ?


>>> It is [/code], not [\code] at code text end. Edit, please.

-
 
Old 04-01-2013, 01:53 AM   #42
tanmay288
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Sir How to recompile a modified .CC file?
 
Old 04-01-2013, 11:10 AM   #43
knudfl
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# 41.

'b2.tcl' looks like some of the text from select.tcl .
Not usable as is.


# 42.

Which file.cc ?

-
 
Old 04-09-2013, 01:12 AM   #44
tanmay288
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ns2.34/classifier/classifier.cc
 
Old 04-09-2013, 03:31 AM   #45
knudfl
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#42, #44.

1) cd ns-allinone-2.34/ns-2.34/
2) cp ns ns-bgp
3) make clean
4) make

-
 
  


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