Check how the shortest path goes.

Traceroute or mtr is not helpful when a packet goes through a firewall. The firewall won't appear in a trace. In order to check the actual path through all network devices - build the shortest path using several ways:

1. by dropdown menu
2. by using right-clicked menu

In order to see a backup path - just press on a colored spt edge link. The algorithm will exclude this link and build a backup path.

Change OSPF cost on a link on the fly.

Right-click on an edge and set a new OSPF cost. Topolograph shows the traffic change flow - links with a decreased and increased amount of traffic. If we set OSPF cost 9 between Node A and Node B - traffic will be redirected to a link via Node C and Node D. This feature is going to be used when you want to adjust OSPF cost and would like to see the output of your changes.

Report. Backup paths via 3d party locations.

This report checks that if two locations are directly connected, backup paths should be only between two locations and do not go via third location as transit. Before running this report - it's needed to create groups (~site names/locations) and assign devices to groups. For example, there are two locations in France: the main site (EU_FRA) and the remote site (EU_FRA1). The same schema with offices in Italy. The main offices in France and Italy are connected to each other and have main (OSPF cost 10) and backup (OSPF cost 20) link.

Remote offices have the main link (OSPF cost 1) to their main offices and backup link (OSPF cost 10) to the foreign office.

If the main link between main offices goes down - the backup path goes via remote offices!

Report. Network heatmap.

The topolograph knows what networks are advertised by nodes. When the network is terminated on both routers, using VRRP, both nodes advertise the network. The node is marked by red if it has a lot of unbackuped networks, and vise versa.

Privacy. Keep your network inside your organization.

Run your local copy of Topolograph inside your on-premises network using the docker image.