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tools:brt

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tools:brt [2019/11/21 20:00] – veeratools:brt [2019/11/21 20:06] (current) – [4.1 Convert the MRT format update file to a format acceptable by brt using bgpdump] veera
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-1. Download BRT from http://caia.swin.edu.au/tools/bgp/brt/downloads.html+===== 1. Download BRT ===== 
 +  
 + 
 +You can find it here http://caia.swin.edu.au/tools/bgp/brt/downloads.html
  
  
 <note important> <note important>
  
-**mp_ methods** +**Error with mp_ methods**  
 + 
 +There seems to be an issue with the Net::BGP module.
  
 We are getting the following error with version 0.2  ''Can't locate object method "mp_unreach_nlri" via package "Net::BGP::Update" at brt-0.2.pl line 263, <$fh> line 2.'' We are getting the following error with version 0.2  ''Can't locate object method "mp_unreach_nlri" via package "Net::BGP::Update" at brt-0.2.pl line 263, <$fh> line 2.''
  
-As a hack you can comment out the mp_unreach_nlri and mp_reach_nlri , if you arent interested in multipath. There seems to be an issue with the Net::BGP module.+As a hack you can comment out the mp_unreach_nlri and mp_reach_nlri , you will lose the multipath updates.  
  
  
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-2. Install the Perl Net::BGP module+===== 2. Install the Perl Net::BGP module ===== 
  
 <code> <code>
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 </code> </code>
  
-3. On router under test +===== 3. On router under test ===== 
 +  
 +Add the BRT as a peer say with AS 300 
 + 
 +Lets say the router has an  AS 400
  
-say it has AS 400 
 <code> <code>
 sh bgp neighbors sh bgp neighbors
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-4. Download a route update file in MRT format. The easiest way is to download from a collector see http://archive.routeviews.org/+===== 4. Prepare a route update file ===== 
 + 
  
 +Download a route update file in MRT format. The easiest way is to download from a collector see http://archive.routeviews.org/
 +
 +
 +==== 4.1 Convert the MRT format update file to a format acceptable by brt using bgpdump ====
  
-5. Convert the MRT format update file to a format acceptable by brt using bgpdump 
  
 BRT tool needs a human readable BGP update file BRT tool needs a human readable BGP update file
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 Convert the file using bgpdump Convert the file using bgpdump
-''+ 
 +<code>
 bgpdump -m updates.20191101.0130  > updates.20191101.0130.bgpdump bgpdump -m updates.20191101.0130  > updates.20191101.0130.bgpdump
 +</code>
  
-'' 
  
  
 +===== 5. Now you can inject routes into the router table. =====
  
-6. Now you can inject routes into the router table. 
  
-''+Run BRT , use the -v to keep an eye on errors.  
 + 
 +<code>
 sudo perl brt-0.2.pl  -brtas 300 -brtip 192.168.3.33 -peeras 400 -peerip 192.168.3.200 -f ~/updates.20191101.0130.bgpdump -v sudo perl brt-0.2.pl  -brtas 300 -brtip 192.168.3.33 -peeras 400 -peerip 192.168.3.200 -f ~/updates.20191101.0130.bgpdump -v
-''+</code> 
 + 
 + 
 +Use the following command on the router 
 + 
 +<code> 
 + 
 +sh ip route 
 +sh bgp summ 
 +sh bgp neighbors 
 + 
 +</code> 
 + 
 + 
 + 
 +BRT is a useful tool to test Trisul ISP (needs license)  
  
tools/brt.1574346629.txt.gz · Last modified: 2019/11/21 20:00 by veera