Retrieving Flow Information
Posted: Tue Apr 02, 2013 12:46 am
Folks, Do we have capability of retrieving flow based information from Nagios, Following is the sample topology.
Example
Host1---Router1-------Router2-----Router3------Host2
------------------------ \------- /
------------------------Router 4
If particular traffic flow is going from Host1->Host 2.
Traffic can potentially take 2 paths
Path 1: Host1->Router1->Router2->Router3->Host2.
Path 2: Host1->Router1->Router2->Router4->Router3->Host2
Question 1. Assume you enabled Netflow on all 4 routers above, can NAGIOS figure out the Paths (like Path1 and Path2) taken by one particular stream of IP (TCP/UDP) flow. (There is only 1 Netflow collector collecting NF packets from all 4 Routers.
Question 2. If Router1 and Router2 and managed by Netflow Collector1 (1st instance of Nagios) and Router 3 and Router 4 are managed by Netflow Collector (2nd Instance of Nagios. Do we have mechanism to consolidate these 2 Netflow Collectors and gather the flow information (as asked in Question 1)
Example
Host1---Router1-------Router2-----Router3------Host2
------------------------ \------- /
------------------------Router 4
If particular traffic flow is going from Host1->Host 2.
Traffic can potentially take 2 paths
Path 1: Host1->Router1->Router2->Router3->Host2.
Path 2: Host1->Router1->Router2->Router4->Router3->Host2
Question 1. Assume you enabled Netflow on all 4 routers above, can NAGIOS figure out the Paths (like Path1 and Path2) taken by one particular stream of IP (TCP/UDP) flow. (There is only 1 Netflow collector collecting NF packets from all 4 Routers.
Question 2. If Router1 and Router2 and managed by Netflow Collector1 (1st instance of Nagios) and Router 3 and Router 4 are managed by Netflow Collector (2nd Instance of Nagios. Do we have mechanism to consolidate these 2 Netflow Collectors and gather the flow information (as asked in Question 1)