Allowing 64 bit Counters

vandewjj,

I'm not sure if there would be an increased load on NPM or not.  I would tend to think so, but I'm sure someone from SW can verify if that's true.

I'm pretty sure you could do a mass update for 64 bit counts by running a sql script to updated the nodes table. 

UPDATE dbo.Nodes

SET Allow64BitCounters = 'True'

You could add a WHERE clause at the end to equal a custom property if you don't want to enable it for everything in inventory. 

If there's a way to do it from the admin web console, I don't know where it is.

Hope this helps!

I was wondering the same thing.  I've been enabling 64bit counters by default.  Any reason I shouldn't be doing that?

I would love to see the answer to this one from SW too, I have always wondered about it.

I was having the same problem on a few POS OC-3 interfaces.  The official answer I got from SW was to enable 64 bit counters.  That did fix my issue as well. I'll let someone from SW jump in, but the support resource I worked with did not recommend enabling 64 bit counters across all nodes (I asked the question).

Has anyone noticed this as an issue with Gig-E or TenGig interfaces?

Some device types do not support 64 bit counters.

SNMP stats stop collecting when 64 bit counters are enabled.
I have not run into any Cisco devices that do not support 64 bit counters.

We have seen an occurence last week where a customers Gb link counters rolled over between polling cycles giving wrong calculation. Counter Rollover is starting to be seen with Customers with Larger Servers and Networking Devices with High Traffic Utilization.

32 Bit counter Max is 2^32-1 or 4294967295

Best Practice: If your device has the following, use 64 bit counters

- 4GB of RAM or Larger

- 1 Gb connection or Larger

- When your Device's Counters hit 4294967295 within 60 minutes regularly

For Calculation Methods, see Karlo's Answer Here

Thanks Sean for posting response. As this has been an issue for us as well. Your detailed best practice list is very helpful.

Can someone from SW please verify if this (SNMP stats stop collecting if 64 bit counters are enabled on a device which doesn't support) is true ?

Thanks for all the replies.  Since almost every device I have has a 1GB link, I'm enabling 64bit counters everywhere.  Seems like most devices that would be true on.

But I too am curious what would happen if the device doesn't support 64bit.

Seems like this should be on by default, and fail back to 32bit if it doesn't support it

Is there a way of enabling 64 bit support by default? That is when I add a device to have this field set to YES instead

of mine manually checking this off?

thanks