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BGP Replay Tool

Used to test BGP Route Receiver that ships with Trisul.

1. Download BRT from http://caia.swin.edu.au/tools/bgp/brt/downloads.html

mp_ methods

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.

2. Install the Perl Net::BGP module

sudo cpanm Net::BGP

3. On router under test

say it has AS 400

sh bgp neighbors
debug ip bgp all
conf t
router bgp 400
neighbor 192.168.3.100  remote-as 300

4. Download a route update file in MRT format. The easiest way is to download from a collector see http://archive.routeviews.org/

5. Convert the MRT format update file to a format acceptable by brt using bgpdump

BRT tool needs a human readable BGP update file BGP update file in human readable with Unix format (bgpdump -m option)

Convert the file using bgpdump bgpdump -m updates.20191101.0130 > updates.20191101.0130.bgpdump

6. Now you can inject routes into the router table.

tools/brt.1574346611.txt.gz · Last modified: 2019/11/21 20:00 by veera