On Tue, Feb 6, 2024 at 6:30 PM Sri kor <esrik...@gmail.com> wrote:
> Thanks Akes for your inputs.
> I have been monitoring all the table update using ovsdb-mon
> <https://github.com/amorenoz/ovsdb-mon> . I dont see any addition or
> deletion in MAC_binding table updates. I have been running this script
> overnight. There was no change in the count and the table entries. I am
> suspecting that I might have missed some configuration parameter. I am
> referring here
> <https://github.com/ovn-org/ovn/blob/branch-23.09/northd/aging.c#L116>
>
> *_uuid : 82d23fff-c341-451f-9208-4429a1b204ec*
>
> *datapath : 99b6b710-80f9-432b-8c96-0f99d2dea8da*
>
> *ip : "172.27.6.45"*
>
> *logical_port :
> a_ed1328b3_0bb2_4af0_a648_0f01b0363a9e_lrp_8c9bff10_2ae8_4fef_8720_dcde1a5e54dd*
>
> *mac : "7e:2e:7f:6b:32:54"*
>
> *timestamp : 1705947447229*
>
>
> *[root@ovnkube-db-0 ~]# ovsdb-client get-schema-version tcp:10.71.1.2:6642
> <http://10.71.1.2:6642> --no-leader-only20.29.0*
>
>
I'm sorry I should have spotted the mistake right away. It is indeed the
wrong configuration. Both options are supposed to be set per logical router
[0] instead of NB_Global table.
>
> On Tue, Feb 6, 2024 at 4:02 AM Ales Musil <amu...@redhat.com> wrote:
>
>>
>>
>> On Tue, Feb 6, 2024 at 1:23 AM Sri kor via discuss <
>> ovs-discuss@openvswitch.org> wrote:
>>
>>> Hi Team,
>>>
>>> I have configured mac_binding_age_threshold to 1sec and
>>> mac_binding_removal_limit="5000". I was expecting mac_binding table entries
>>> to be flushed, but it's not happening. We are currently using 23.09.1. Is
>>> it a known issue ?
>>> Please advise from below logs.
>>>
>>
>> Hi,
>> in 23.09 we added a mechanism that will refresh MAC bindings that are
>> still in use [0]. Is it possible that there is some traffic flowing which
>> will keep those MAC bindings alive?
>> It also might be a coincidence, but deleted mac bindings might be
>> populated back again so the overall count is the same. I would suggest
>> monitoring MAC binding doesn't have any traffic flowing to see if it goes
>> away.
>>
>> Also the mac_binding_removal_limit option imposes delay for deletion. If
>> this limit is reached next aging can happen only after 5 seconds.
>>
>>
>>>
>>> thanks,
>>> Srini
>>> [root@ovnkube-db-0 log]# ovn-nbctl --version
>>> ovn-nbctl 23.09.1
>>> Open vSwitch Library 3.2.2
>>> DB Schema 7.1.0
>>>
>>> [root@ovnkube-db-0 log]# ovn-nbctl --no-leader-only find NB_global
>>> _uuid : d01b9c57-29c5-4b86-8de5-c03a9f30825b
>>> connections : [6c9c0c05-af2a-43ab-9164-24588e8b0a3c]
>>> external_ids : {}
>>> hv_cfg : 12935
>>> hv_cfg_timestamp : 1705104326732
>>> ipsec : false
>>> name : ""
>>> nb_cfg : 13573
>>> nb_cfg_timestamp : 1707178571143
>>> options : {mac_binding_age_threshold="1",
>>> mac_binding_removal_limit="5000", mac_prefix="fe:58:59",
>>> max_tunid="16711680", northd_internal_version="23.09.1-20.29.0-71.6",
>>> northd_probe_interval="5000", ovn-garp-max-timeout-sec="60",
>>> svc_monitor_mac="5a:7f:14:6c:47:da"}
>>> sb_cfg : 13573
>>> sb_cfg_timestamp : 1707178571869
>>> ssl : []
>>> [root@ovnkube-db-0 log]# ovn-Sbctl --no-leader-only find SB_global
>>> bash: ovn-Sbctl: command not found
>>> [root@ovnkube-db-0 log]# ovn-sbctl --no-leader-only find SB_global
>>> _uuid : 8bb031f1-a428-449d-9559-c4c326e91f2d
>>> connections : [a501a7ba-8970-4dc3-94db-0088ab951aa5]
>>> external_ids : {}
>>> ipsec : false
>>> nb_cfg : 13573
>>> options : {mac_binding_age_threshold="1",
>>> mac_binding_removal_limit="5000", mac_prefix="fe:58:59",
>>> max_tunid="16711680", northd_internal_version="23.09.1-20.29.0-71.6",
>>> northd_probe_interval="5000", ovn-garp-max-timeout-sec="60",
>>> svc_monitor_mac="5a:7f:14:6c:47:da"}
>>> ssl : []
>>> [root@ovnkube-db-0 ~]# while true; do ovn-sbctl --no-leader-only list
>>> MAC_Binding | grep mac | wc; sleep 10;done
>>> 10546 31638 442932
>>> 10546 31638 442932
>>> 10546 31638 442932
>>> 10546 31638 442932
>>> 10546 31638 442932
>>> 10546 31638 442932
>>> 10546 31638 442932
>>> _______________________________________________
>>> discuss mailing list
>>> disc...@openvswitch.org
>>> https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
>>>
>>
>> Hopefully some of this is helpful.
>>
>> Best regards,
>> Ales
>>
>> [0]
>> https://github.com/ovn-org/ovn/commit/e1ab41ee32aa2782db82406b8bd9cda0e1fabc3c
>>
>>
>> --
>>
>> Ales Musil
>>
>> Senior Software Engineer - OVN Core
>>
>> Red Hat EMEA <https://www.redhat.com>
>>
>> amu...@redhat.com
>> <https://red.ht/sig>
>>
>
Best regards,
Ales
[0] https://github.com/ovn-org/ovn/blob/branch-23.09/ovn-nb.xml#L165
--
Ales Musil
Senior Software Engineer - OVN Core
Red Hat EMEA <https://www.redhat.com>
amu...@redhat.com
<https://red.ht/sig>
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