[c-nsp] 6500's SLA check feature

[Nick Hilliard]

On 13/04/2011 16:16, Greg Whynott wrote:
> thanks Nick.   wasn't seriously considering it,  discovered it by accident, thought id ask.
>
> for a brief weak moment there i thought it might be the cadilac of naglios.

Saku Ytti mentioned offline that the actual ip sla timestamping is done by 
CEF rather than as a generic low priority RP / CPU operation (this was news 
to me - but quite interesting).  This means in effect the timestamps it 
returns will be surprisingly accurate.  However, as the IP SLA Responder 
and Mon Sync processes need to handle sending and receiving packets, it's 
not clear that you're guaranteed that your packets won't be dropped or not 
sent in the first place due to busy RP / CPU.  IOW, it's a great tool, but 
understand that it has limitations.  And no, it's not a replacement for nagios.

Nick