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MACFLAP - Dropping our lan-to-lan connection

Hello,
We have had a network for years that we never had this problem, and after doing a "lan-to-lan" with our subsidiary company, we are having a problem with MACFLAP, according to the log below. Our switches are CISCO Model: SG350-28MP -28 Port Managed Switch.

They could help us with these logs, the problem is that when this happens our connection at the branch drops.

 

Mar  8 08:11:23.114: %SW_MATM-4-MACFLAP_NOTIF: Host 8c8e.f2d9.1e57 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 08:11:48.456: %SW_MATM-4-MACFLAP_NOTIF: Host 8c8e.f2d9.1e57 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 08:30:28.316: %SW_MATM-4-MACFLAP_NOTIF: Host 98b8.ba9d.7680 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 08:50:57.085: %SW_MATM-4-MACFLAP_NOTIF: Host 5820.b14f.3a53 in vlan 3570 is flapping between port Gi0/4 and port Gi0/3
Mar  8 08:50:57.110: %SW_MATM-4-MACFLAP_NOTIF: Host 00ff.4f9d.dd3e in vlan 3570 is flapping between port Gi0/4 and port Gi0/3
Mar  8 08:50:57.118: %SW_MATM-4-MACFLAP_NOTIF: Host 0015.5df7.2902 in vlan 3570 is flapping between port Gi0/4 and port Gi0/3
Mar  8 08:50:57.127: %SW_MATM-4-MACFLAP_NOTIF: Host 0015.5df7.2925 in vlan 3570 is flapping between port Gi0/4 and port Gi0/3
Mar  8 08:50:57.127: %SW_MATM-4-MACFLAP_NOTIF: Host 007c.2d66.cfab in vlan 3570 is flapping between port Gi0/3 and port Gi0/4
Mar  8 08:50:57.160: %SW_MATM-4-MACFLAP_NOTIF: Host 28b2.bdfe.54d9 in vlan 3570 is flapping between port Gi0/3 and port Gi0/4
Mar  8 08:50:57.160: %SW_MATM-4-MACFLAP_NOTIF: Host 0015.5df7.2924 in vlan 3570 is flapping between port Gi0/3 and port Gi0/4
Mar  8 08:50:57.202: %SW_MATM-4-MACFLAP_NOTIF: Host 74e6.e2cf.c738 in vlan 3570 is flapping between port Gi0/4 and port Gi0/3
Mar  8 08:50:57.269: %SW_MATM-4-MACFLAP_NOTIF: Host e4e7.49fb.9ad4 in vlan 3570 is flapping between port Gi0/3 and port Gi0/4
Mar  8 08:50:57.395: %SW_MATM-4-MACFLAP_NOTIF: Host 204e.711b.298d in vlan 1008 is flapping between port Gi0/3 and port Gi0/4
Mar  8 08:50:57.395: %SW_MATM-4-MACFLAP_NOTIF: Host 204e.711b.293b in vlan 1638 is flapping between port Gi0/3 and port Gi0/4
Mar  8 09:16:50.596: %SW_MATM-4-MACFLAP_NOTIF: Host 0492.2651.5575 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 09:16:54.991: %SW_MATM-4-MACFLAP_NOTIF: Host 0492.2651.5575 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 10:12:43.414: %SW_MATM-4-MACFLAP_NOTIF: Host 98b8.ba9d.7680 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 10:18:27.592: %SW_MATM-4-MACFLAP_NOTIF: Host 98b8.ba9d.7680 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 10:48:28.518: %SW_MATM-4-MACFLAP_NOTIF: Host 0492.2651.5575 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 12:14:16.809: %SW_MATM-4-MACFLAP_NOTIF: Host 8019.3489.d93d in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 12:17:48.589: %SW_MATM-4-MACFLAP_NOTIF: Host f0d7.aaec.871a in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 12:27:33.177: %SW_MATM-4-MACFLAP_NOTIF: Host 5ccd.5b6f.d489 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 12:32:56.358: %SW_MATM-4-MACFLAP_NOTIF: Host 5ccd.5b6f.d489 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 12:34:27.325: %SW_MATM-4-MACFLAP_NOTIF: Host 0492.2651.5575 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 12:43:44.591: %SW_MATM-4-MACFLAP_NOTIF: Host 5ccd.5b6f.d489 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 13:04:22.177: %SW_MATM-4-MACFLAP_NOTIF: Host 5ccd.5b6f.d489 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 13:04:35.213: %SW_MATM-4-MACFLAP_NOTIF: Host 5ccd.5b6f.d489 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 13:56:00.231: %SW_MATM-4-MACFLAP_NOTIF: Host 0492.2651.5575 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 15:22:06.306: %SW_MATM-4-MACFLAP_NOTIF: Host 0492.2651.5575 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 15:42:44.857: %SW_MATM-4-MACFLAP_NOTIF: Host 0492.2651.5575 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 16:06:37.580: %SW_MATM-4-MACFLAP_NOTIF: Host f0d7.aaec.871a in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 16:12:05.685: %SW_MATM-4-MACFLAP_NOTIF: Host 5ccd.5b6f.d489 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  8 17:41:32.316: %SW_MATM-4-MACFLAP_NOTIF: Host 8019.3489.c8f8 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 07:53:19.978: %SW_MATM-4-MACFLAP_NOTIF: Host 8019.3489.d93d in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 08:23:51.313: %SW_MATM-4-MACFLAP_NOTIF: Host 0016.ea38.3798 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 08:57:32.910: %SW_MATM-4-MACFLAP_NOTIF: Host 4caa.16a1.d871 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 08:59:01.629: %SW_MATM-4-MACFLAP_NOTIF: Host 4caa.16a1.d871 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 09:15:47.050: %SW_MATM-4-MACFLAP_NOTIF: Host 98b8.ba9d.7680 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 09:47:38.186: %SW_MATM-4-MACFLAP_NOTIF: Host 0492.2651.5575 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 09:50:54.615: %SW_MATM-4-MACFLAP_NOTIF: Host 0492.2651.5575 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 10:13:21.958: %SW_MATM-4-MACFLAP_NOTIF: Host 98b8.ba9d.7680 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 10:28:02.447: %SW_MATM-4-MACFLAP_NOTIF: Host 8019.3489.d93d in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 10:30:05.022: %SW_MATM-4-MACFLAP_NOTIF: Host 8019.3489.d93d in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 10:57:48.089: %SW_MATM-4-MACFLAP_NOTIF: Host 0016.ea38.3798 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 12:09:49.201: %SW_MATM-4-MACFLAP_NOTIF: Host 0492.2651.5575 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 12:32:27.793: %SW_MATM-4-MACFLAP_NOTIF: Host 0492.2651.5575 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 12:36:30.669: %SW_MATM-4-MACFLAP_NOTIF: Host f0d7.aaec.871a in vlan 3570 is flapping between port Gi0/2 and port Gi0/4
Mar  9 12:37:43.751: %SW_MATM-4-MACFLAP_NOTIF: Host 0492.2651.5575 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 13:37:09.254: %SW_MATM-4-MACFLAP_NOTIF: Host 0492.2651.5575 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 14:18:28.846: %SW_MATM-4-MACFLAP_NOTIF: Host 0492.2651.5575 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 14:24:58.793: %SW_MATM-4-MACFLAP_NOTIF: Host 0492.2651.5575 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 14:28:06.380: %SW_MATM-4-MACFLAP_NOTIF: Host 0492.2651.5575 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 14:30:17.989: %SW_MATM-4-MACFLAP_NOTIF: Host 0492.2651.5575 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 14:41:57.653: %STORM_CONTROL-3-FILTERED: A Broadcast storm detected on Gi0/4. A packet filter action has been applied on the interface.
Mar  9 16:02:45.268: %SW_MATM-4-MACFLAP_NOTIF: Host 8019.3489.d93d in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 16:13:33.795: %SW_MATM-4-MACFLAP_NOTIF: Host 5ccd.5b6f.d489 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 16:16:05.856: %SW_MATM-4-MACFLAP_NOTIF: Host 4ceb.bdf5.982d in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar  9 16:16:06.703: %PM-4-ERR_DISABLE: storm-control error detected on Gi0/2, putting Gi0/2 in err-disable state
Mar  9 16:16:06.896: %STORM_CONTROL-3-SHUTDOWN: A packet storm was detected on Gi0/2. The interface has been disabled.
4 RESPOSTAS 4

FGOSILVA
Spotlight
Spotlight

Hi,

 

Can you find out what is connected on Gi0/4 and Gi0/2 on the switch. It could be looping packets into the network.

Provide "show cdp neigh" output from the switch.

Also can you update a topology diagram to know what devices are connected to on Gi0/4, Gi0/2

 

See erros below

Mar 9 14:41:57.653: %STORM_CONTROL-3-FILTERED: A Broadcast storm detected on Gi0/4. A packet filter action has been applied on the interface.
Mar 9 16:02:45.268: %SW_MATM-4-MACFLAP_NOTIF: Host 8019.3489.d93d in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar 9 16:13:33.795: %SW_MATM-4-MACFLAP_NOTIF: Host 5ccd.5b6f.d489 in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar 9 16:16:05.856: %SW_MATM-4-MACFLAP_NOTIF: Host 4ceb.bdf5.982d in vlan 3570 is flapping between port Gi0/4 and port Gi0/2
Mar 9 16:16:06.703: %PM-4-ERR_DISABLE: storm-control error detected on Gi0/2, putting Gi0/2 in err-disable state

Mar 9 16:16:06.896: %STORM_CONTROL-3-SHUTDOWN: A packet storm was detected on Gi0/2. The interface has been disabled.

 

Storm in your network !!

 

Regards,

Cisco Moderador
Community Manager
Community Manager

Olá, @Allybonny Ziomek . Primeiro de tudo, muito obrigada por dividir sua dúvida com a gente. Para um melhor resultado em receber ajuda da comunidade, sugerimos que conteúdo públicado aqui seja em português.

@FGOSILVA muito obrigado pelo apoio e resposta!

Obrigado!

Equipe Comunidade da Cisco
Att,

Tudo bem então, desculpe. 

Estou analisando as informações repassadas pelo @FGOSILVA e após retorno com os resultados. 

FGOSILVA
Spotlight
Spotlight

Boa tarde,

 

Conseguiu achar algo ? Se quiser compartilhar mais informações sobre a configuração das 2 portas em questão, talvez consiga ajudar mais. Já problemas semelhantes acontecerem em falhas de port-channel, porém, será interessante revisar a configuração dos devices conectados nas 2 portas em questão.

 

Att,

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