SNMP Pool Member data

I haven't been successful with the pool member due to the way the oid is indexed. I plan to write an external script (called by Cacti) to grab the stats via IControl. I haven't yet had the time (or the skill) to accomplish this. If I ever get there, I'll be sure to post. This would be a tremendous addition to the template.

Thanks, citizen,

 

 

Can you tell me a little bit more about the way the OID is indexed and why it's stopping me?

 

 

Also,

 

Maybe this is a better topic for a cacti forum, but, can you talk a little about how you might architect a script and/or cacti data gathering techniques to make this happen the way you describe? I'm (obviously) not well-versed in cacti or SNMP, but I can write the stuffing out of a script.

 

 

Do you have the same problem I do with being able to get data for all pool members, but not for one?

 

 

Thanks.

 

SOW

bump? anyone?

Sorry. OK, so if you walk the ltmpoolmemberstat mib for example, you get (sample output):

 

 

F5-BIGIP-LOCAL-MIB::ltmPoolMemberStatServerBytesIn."int-pool".ipv4."10.10.1.10".443

 

F5-BIGIP-LOCAL-MIB::ltmPoolMemberStatServerBytesIn."int-pool".ipv4."10.18.1.11".443

 

 

Notice that the pool definition, which is what cacti would use as the index for each pool member, is in the middle of the string, not at the end, as in the virtual server definition. The numerical representation is below, with the index highlighted.

 

 

.1.3.6.1.4.1.3375.2.2.5.4.3.1.6.11.105.110.116.45.112.111.111.108.1.4.10.1.1.10.443

 

.1.3.6.1.4.1.3375.2.2.5.4.3.1.6.11.105.110.116.45.112.111.111.108.1.4.10.1.1.11.443

 

 

My experimentation with the regex in the xml file always led to a double dot in the oid string used to query the LTM, which obiously failed.

 

 

I'm not sure how to approach from the script side. I think it would be ideal to figure out a way to have Cacti "discover" the pools and pool members from an iControl script, then use iControl to populate the rrd files as you define what to graph in the device page. I think a thread on Cacti forum would be the best bet for this help, and we can reach out to Joe here at DevCentral on the iControl specific pieces.