perl-App-iosdiff

Cisco IOS Config Diff

This library provides one subroutine to run an intelligent context aware diff between two files in Cisco IOS-style configuration format. Whilst an ordinary diff works on IOS-style configuration files, it doesn't show the context in a useful way. For example if one line changes within an interface configuration, you're likely not to see the interface name in a standard 3-line contextual diff. This program improves that by showing the full context of any difference. In terms of IOS-style configuration, this context means either the "section" such as an interface or class-map (a header with indented lines), or the command group such as an access control list, where the lines share common leading text.