Hi John,
On 11/13/2023 3:27 PM, Evans, John wrote:
Thanks Beniot for your feedback.
Are you suggesting to update the IPFIX forwarding status codes to reflect the
discard classes in draft-opsawg-evans-discardmodel?
Yes, I believe it would be the right way forward.
I completely agree that finding the drop/discard (from your draft "The
terms 'packet drop' and 'discard' are considered equivalent and are used
interchangeably.") is key for operators.
Once you know this, you will need the specific interface on the device.
Next, once you will want to know more about this traffic type, you will
need either the destination IP address/prefix, IPv4/IPv6, the next hop,
IPv6 extension header, QoS info, ingress or egress, ... whatever needed
information to track down the flows in question. And this information
would typically be available with IPFIX. Note that RFC 6728
(Configuration Data Model for the IP Flow Information Export (IPFIX) and
Packet Sampling (PSAMP) Protocols) was exactly with exactly that use
case in mind: create specific IPFIX cache, with specific key fields, for
a very short period of time, for troubleshooting purpose.
Granted IPFIX is typically layer 3, even if there are layer 2 and MPLS
implementations out there.
That being said, I'm not trying to say that IPFIX is the only solution
for your draft.
There is some value in trying to harmonize the reporting with your
information model (*) classification scheme in section 3.
(*) I like the fact you use the right term: information model. This
information model might collect information from different data model
sources. And one of them might be IPFIX.
Regards, Benoit
On 06/11/2023, 13:03, "Benoit Claise" <benoit.cla...@huawei.com
<mailto:benoit.cla...@huawei.com>> wrote:
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Hi John,
https://www.iana.org/assignments/ipfix/ipfix.xhtml#forwarding-status
<https://www.iana.org/assignments/ipfix/ipfix.xhtml#forwarding-status>
Regards, Benoit
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