Wednesday, June 9, 2021

Real-Life Network-as-a-Graph Examples

After reading the Everything Is a Graph blog post, Vadim Semenov sent me a long list of real-life examples (slightly edited):


I work in a big enterprise and in order to understand a real packet path across multiple offices via routers and firewalls (when mtr or traceroute don’t work – they do not show firewalls), I made OSPF network visualization based on LSDB output. The idea is quite simple – save information about LSA1 and LSA2 (LSA5 optionally) and that will be enough in order to build a graph (use show ip ospf database router/network on Cisco devices).



source https://blog.ipspace.net/2021/06/network-graph-examples.html?utm_source=atom_feed

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