Data Summary

[campbelljr]

I would like to summarize/combine the data for multiple interfaces into one rrd for graphing/weathermapping summary info. For example, I have switch rooms with 5 switches, each switch uplinked back to a core switch. I want to create a graph for the total traffic to/from that switch room as well as a weathermap showing utilization to/from that switch room.

I'm already graphing:

Switch A Gi0/0 -> Core Gi0/1
Switch B Gi0/0 -> Core Gi0/2
Switch C Gi0/0 -> Core Gi0/3
Switch D Gi0/0 -> Core Gi0/4
Switch E Gi0/0 -> Core Gi0/5

But I want something that combines the traffic of all of these into one graph, and one weathermap LINK.

The graphing I could do by pulling from multiple sources, no problem there. But the weathermap LINK is the one I'm having a hard time with.

Any suggestions on how to do this? I am thinking I will need to pull the data from the multiple rrd's for the interfaces I want and add them to a summary rrd. Is there a better way? Should I do this from within Cacti using custom data input methods, or should I script it behind the scenes?

Or am I way off here?

[Howie]

I would like to summarize/combine the data for multiple interfaces into one rrd for graphing/weathermapping summary info. For example, I have switch rooms with 5 switches, each switch uplinked back to a core switch. I want to create a graph for the total traffic to/from that switch room as well as a weathermap showing utilization to/from that switch room.

I'm already graphing:

Switch A Gi0/0 -> Core Gi0/1
Switch B Gi0/0 -> Core Gi0/2
Switch C Gi0/0 -> Core Gi0/3
Switch D Gi0/0 -> Core Gi0/4
Switch E Gi0/0 -> Core Gi0/5

But I want something that combines the traffic of all of these into one graph, and one weathermap LINK.

The graphing I could do by pulling from multiple sources, no problem there. But the weathermap LINK is the one I'm having a hard time with.

Any suggestions on how to do this? I am thinking I will need to pull the data from the multiple rrd's for the interfaces I want and add them to a summary rrd. Is there a better way? Should I do this from within Cacti using custom data input methods, or should I script it behind the scenes?

Or am I way off here?

This is in the Weathermap FAQ. You can specify multiple RRD files in a TARGET line, and Weathermap will aggregate them.

Code: Select all

LINK my_aggregate_link
   TARGET a.rrd b.rrd c.rrd d.rrd e.rrd f.rrd

[campbelljr]

Thanks I was using a different weathermap that didn't have that functionality. I switched to the cacti pluginable weathermap and life is better now.