Have you ever looked for a tool that can convert thousands of routes to summarized routes?
This tool can help you minimize the number of routing entries in the network. The tool consolidates aggregate-able IPv4 and/or IPv6 routes into summary routes. The input should contain IPv4 or IPv6 addresses with maskbits notation (x.x.x.x/y or x.x.x.x::x/y) The IP addresses can be part of existing output in e.g. 'show ip route', no need to filter the output before using this tool.
This tool can be used to summarize routes from for example:
show ip route
show ip bgp
You can use the summarized routes to create aggregate route configuration in OSPF or BGP.
Upload show ip route or show ip bgp output to the tool and run the script to get summarized routes output. Data can be copied next to the "IPv4/IPv6 routes" section as shown with the red box. Click "summary" to generate the summarised routes.
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