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tools:brt [2019/11/21 13:19] veera |
tools:brt [2019/11/21 14:36] (current) veera [4.1 Convert the MRT format update file to a format acceptable by brt using bgpdump] |
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| - | 1. Download BRT from http://caia.swin.edu.au/tools/bgp/brt/downloads.html | + | ===== 1. Download BRT ===== |
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| + | You can find it here http://caia.swin.edu.au/tools/bgp/brt/downloads.html | ||
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| + | |||
| + | <note important> | ||
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| + | **Error with mp_ methods** | ||
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| + | There seems to be an issue with the Net::BGP module. | ||
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| + | 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.'' | ||
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| + | 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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| + | </note> | ||
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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 ===== |
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| + | 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 routes file and convert it | + | ===== 4. Prepare a route update file ===== |
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| + | Download a route update file in MRT format. The easiest way is to download from a collector see http://archive.routeviews.org/ | ||
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| + | ==== 4.1 Convert the MRT format update file to a format acceptable by brt using bgpdump ==== | ||
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| + | BRT tool needs a human readable BGP update file | ||
| + | '' | ||
| + | BGP update file in human readable with Unix format (bgpdump -m option) | ||
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| + | '' | ||
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| + | Convert the file using bgpdump | ||
| + | |||
| + | <code> | ||
| + | bgpdump -m updates.20191101.0130 > updates.20191101.0130.bgpdump | ||
| + | </code> | ||
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| + | |||
| + | |||
| + | ===== 5. Now you can inject routes into the router table. ===== | ||
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| + | |||
| + | 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 | ||
| + | </code> | ||
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| + | Use the following command on the router | ||
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| + | <code> | ||
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| + | sh ip route | ||
| + | sh bgp summ | ||
| + | sh bgp neighbors | ||
| + | |||
| + | </code> | ||
| + | |||
| + | BRT is a useful tool to test Trisul ISP (needs license) | ||
tools/brt.1574342340.txt.gz · Last modified: 2019/11/21 13:19 by veera
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