Re: Management Requirements

Benoit Claise <[email protected]> Thu, 09 Aug 2012 13:30:07 +0200
Newsgroups gmane.ietf.ops
Message-ID <[email protected]>
Dave,

Answering a single point below (still reading the entire email thread)
>> -----Original Message-----
>>   
>> For event notifications, you have at least SYSLOG, SNMP notifications, IPFIX,
>> NETCONF notifications. I think the last one is likely not a main target. SNMP
>> notifications means one SNMP message per event and the same holds true
>> for SYSLOG; IPFIX allows to send a collection of events in one IPFIX message
>> and hence it might be more scalable, which might be important for some NAT
>> deployments.
> I've heard it said that IPFIX is for packet sampling not for metadata eventing,
> but this isn't an area I know enough about myself to say.
IPFIX is an push-based export protocol. This is not only for packet 
sampling.
How data are produced is out of the scope of IPFIX (Full Flow, Sampled 
Flow, …).
It's true that the PSAMP WG defined a Metering Process for packet 
sampling, and that the chosen export protocol is IPFIX, but that doesn't 
limit IPFIX to packet sampling only.
Actually, IPFIX became a generic push mechanism these days, not only 
reporting flow information.

Regards, Benoit.