As a follow up, the man page for Sampling_App states...
*i**d*: integer, in range 1 to 255
This identifier is used as part of the sample’s
observation domain ID.
So in my generated samples I have:
"observationDomainID" : 704643079,
"observationPointID" : 1003,
My Sample collector:
ovn-nbctl list Sampling_App
_uuid : daa18e34-7705-42c4-bed7-afc4497e0a21
external_ids : {}
id : 42
type : acl-new
But I can't find '42' in '704643079' binary/hex or decimal, so how is
the observationDomainID generated?
Brendan.
On 30/10/2025 11:09, Brendan Doyle via discuss wrote:
Hi,
I've asked this before but perhaps the question or response got lost,
I'm struggling
to understand the relationship between Sampling_App, Sample_Collector
and Sample
when creating ACLs with samples. I can't find any good
documentation/blog or tutorial
so I'm working off the unit tests.
So what's the purpose of Sampling_App type="drop", it seems you don't
need it to
sample dropped packets. I have
collector1=$(ovn-nbctl create Sample_Collector id=1 name=c1
probability=65535 set_id=100)
ovn-nbctl create Sampling_App type="acl-new" id="42"
ovn-nbctl acl-add ls_vcn1_net1 from-lport 32767 "inport ==
\"00bff7c0-2e2d-41ba-9485-3b5fa9801365\" && arp" allow-related
ovn-nbctl acl-add ls_vcn1_net1 from-lport 14000 "inport ==
\"00bff7c0-2e2d-41ba-9485-3b5fa9801365\" && ip.proto == 6" allow-related
ovn-nbctl \
-- --id=@sample_in_1c_new create Sample collector="$collector1"
metadata=1003 \
-- --sample-new=@sample_in_1c_new \
acl-add ls_vcn1_net1 from-lport 0 "inport ==
\"00bff7c0-2e2d-41ba-9485-3b5fa9801365\"" drop
And this generates samples for dropped pkts, I don't need to create:
ovn-nbctl create Sampling_App type="drop" id="44"
And in any case there is no "--sample-drop=sample" option for
ovn-nbctl acl_add so how would I use it?
Thanks
Brendan.
_______________________________________________
discuss mailing list
[email protected]
https://urldefense.com/v3/__https://mail.openvswitch.org/mailman/listinfo/ovs-discuss__;!!ACWV5N9M2RV99hQ!MR6HRWmxK48a8fwqipbQbetL8Hv4FCiJvLP3MB6ecUcD3EqGDbHYpPjBfJybFNYITdQM7Ev1ERK7Qfhq8q2n_-aHKViDdg$
_______________________________________________
discuss mailing list
[email protected]
https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
