HUM - Polling the devices takes long time

[tech_trac]

Hello,

I have approx. 20 devices in the HUM. I have selected all the devices under Poller Management with 7 instances. It takes nearly half hour. How can this be improved. And how can I verify whether last poll was successful or not.

Is there a way to poll the devices in the background. Coz when I click next after making selection under Poller Management, it starts polling in the foreground.

Thanks

[Joe Clarke]

The problem was actually slightly different, but I was able to track it down, and I filed CSCtb68766 to track the issue. I created a patch which fixes the problem. You can get the patch by contacting the TAC.

[Joe Clarke]

Probably, yes.

[tech_trac]

I am getting two errors in big numbers on the pollers

1. No such instance available

2. Request timed-out. Device may be down.

With regards to 1, I believe it is because the MIB object may not be supported by the device. In this case, is it better to just ignore these errors. Coz creating a poller for every device and then checking to ensure that only supported MIB objects are selected is quite a tedious process.

What could be the reason for # 2. Example below for ACE Module

ifOutErrors bvi2 Transient 2 Request Timed-Out. Device may be down. Mon, Aug 31 2009, 11:01:09 GST

ifOutDiscards bvi2 Transient 2 Request Timed-Out. Device may be down. Mon, Aug 31 2009, 11:01:09 GST

ifInDiscards bvi2 Transient 2 Request Timed-Out. Device may be down. Mon, Aug 31 2009, 11:01:09 GST

ifInErrors bvi2 Transient 2 Request Timed-Out. Device may be down. Mon, Aug 31 2009, 11:01:09 GST

ifOutErrors vlan310 Transient 2 Request Timed-Out. Device may be down. Mon, Aug 31 2009, 11:01:09 GST

ifOutDiscards vlan310 Transient 2 Request Timed-Out. Device may be down. Mon, Aug 31 2009, 11:01:09 GST

ifInDiscards vlan310 Transient 2 Request Timed-Out. Device may be down. Mon, Aug 31 2009, 11:01:09 GST

Thanks.

[Joe Clarke]

You may be correct. In that case, those errors can be ignored. They will not cause problems, but will result in needless polling to affected devices.

The ACE module may be overwhelmed by the SNMP polling, and thus timing out for certain instances. Increasing the HUM SNMP timeout may help.