[cisco-bba] RE: [c-nsp] MRTG a L2TP VPDN Looback Interface

[Joe Maimon]

Code Monkey wrote:

> On 12/21/05, Oliver Boehmer (oboehmer) <oboehmer at cisco.com> wrote:
> 
>>Getting up-to-date/exact statistics without Netflow would likely require
>>to collect per-user/session stats (IFMIB or VPDN-MIB) and substract it
>>from the interface counters.
> 
> 
> 
> I can't see any other reasonable way to do it.
> 
> As a bonus, that way he can graph each tunnel seperately:
> 
> Each L2TP tunnel gets a Virtual-Access interface. Those could be graphed,
> but the number of those interfaces changes every time the tunnel goes
> down/up.

Which is why it is much more usefull to graph users from radius
accounting data, hopefully from a sql server.

Whether that is reliably subtractable from the interface statistics....