Automated Network Diagram; mnet v0.10 released

A couple years ago I released a tool on github and Reddit (thread) to automatically discover and diagram your network. Give this python script an IP address of a root node and SNMP read-only credentials, and it will do the rest.

Version v0.10 is now on github.

Change Log

v0.10 - 5/5/2018 - Ported to Python 3 - Cleaned up and refactored code - Improved discovery - Improved discovery console output - Fixed VSS chassis detection; now finds correct serial# and platform - All output referencing node IP now uses best IP instead of first found - Try all known IPs for a node until one works; no longer fails on unreacable IPs (eg, VRFs/ACL blocks/etc) - Default depth is now 100 - Added runtime to stdout - Renamed 'graph' to 'diagram' - Cisco ACL-style node matching (replaced config subnets/exclude with discover) - Added 'leaf' option to stop discovery beyond a matching node - Added 'include' option to stop discovery at a matching node - Config option diagram/node_text replaces the below: - include_svi - include_lo - include_serials diagram - Changed -f option to -o - If a LAG spans multiple devices (eg, Nexus) override expand_lag for that device - Output can create multiple files. Ex: -o "file.{svg|png}" will create file.svg and file.png 

Example

# ./mnet.py diagram -r 10.75.0.1 -o .\network.svg

Will generate this diagram.