Save the output from min two commands (for getting LSA1 and LSA2 ) and upload it to Topolograph with .txt or .log extenstion.
Demo network has already uploaded for everyone. Press `Load dynamic graph` in order to upload it. Once you did it - you can see the topology, bold lines show ECMP links.
Press on bold line in order to unflat ECMP and see all nested links.
It's possible to build the shortest path from a node. Just right click on a node. The description with all nodes and path cost is available above the topology.
Once you set the source and destination - you get colored the shortest path.
New feature of v2.11 release. MST allows see all the shortest paths To or From node. Just activate it from this radio-checkbox.
New feature of v2.11 release. All incoming the shortest paths are built to the node.
New feature of v2.11 release. All outgoing the shortest paths are built from the node.
New feature of v2.13 release. Difference between incoming and outgoing the shortest paths of selected node.
How is it possible to know what networks are terminated on some particular node. Thera are two ways how to know about it. The first one - start typing Node ID in Focus/From field and you will see all terminated networks on the node.
The second method is just to press on a node. New form pops up with a list of all backuped and non-backuped networks. The network is trated as backuped if such network is terminated on min two nodes.
In order to find out the backup path - just press on colored edge. You will simulate a link outage and the shortest path will be rebuilt passing by a 'failed" edge.
It's possible to change OSPF cost of any link. Right click on edge, new form pops up. Write new ospf cost in input field. Imagine if we need to redirect a traffic flow from 18.104.22.168 - 22.214.171.124 link to another link.
Right click on colored edge and set 12. We get new traffic flow with new OSPF cost.
When you perform some configuration changes (add new network, redistribute another protocol to OSPF or change filters in existed route-maps) it is highly desire to make sure that results of you action give you expected changes in OSPF network. In order to do this - upload your network before your changes and right after it and compare them. What will be shown:
In this mode it's possible to simulate a link or router shutdown/outage. The topology will be re-pained with expected changed traffic flow avoiding failed link or router.
Upload a graph if did't do it before and press on NetworkReactionOnFailure.
As you can see decreasing rate of traffic from 126.96.36.199 node to 188.8.131.52 and 184.108.40.206 differ from opposite direction [ from 220.127.116.11 to 18.104.22.168 ] upto ~2times. It happens because of the unsymmetric traffic path.
We also can see an expected increasing rate of blue painted edge.
Right click on a node and choose `shutdown this node`. The algorithm escape this node.
Under NetworkReactionOnFailure tab it is possible to see a network reaction on a OSPF cost change on the fly. Set new OSPF cost in righted-clicked edge menu.
In this mode it's possible to run algorithms in order to check your OSPF network.
Print out any Unidirectional links ( number of IN and OUT links between two neighbors is not equal)
The edge is marked as red edge because of cost 1 and cost 10 OSPF metric
Print out any asymmetric paths from different points of views.
We get a list of nodes which have asymmetric paths. Just checking them - we can see difference in incoming and Outgoing paths.
Under Analytics tab it is possible to see how many terminated subnets are backuped via terminating the same subnet on different devices.
Click on a node in order to find out which networks are backuped which not.
As we can see only own device's loopback is not backuped - it is normal.