MAC-FLAPPING 00e0.fc09.bcf9

Created: Mar 21, 2018 08:09:48Latest reply: May 24, 2018 15:27:03 2906 10 3 0
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This post was last edited by user_2929863 at 2018-04-06 08:57. been very cusrious of this mac address issue.
not able to locate where is he mac address.
check all 22 switchs, doesnt have the mac address 
anyone have idea how it came.Mar 19 09:17:22: %SW_MATM-4-MACFLAP_NOTIF: Host 0028.f861.c8d5 in vlan 3 is flapping between port Po13 and port Po11Mar 19 11:47:40: %SW_MATM-4-MACFLAP_NOTIF: Host 606d.c734.6585 in vlan 3 is flapping between port Po14 and port Po13Mar 20 23:44:57: %SW_MATM-4-MACFLAP_NOTIF: Host 00e0.fc09.bcf9 in vlan 1 is flapping between port Po30 and port Gi1/0/6Mar 21 00:20:01: %SW_MATM-4-MACFLAP_NOTIF: Host 00e0.fc09.bcf9 in vlan 1 is flapping between port Gi1/0/6 and port Po30Mar 21 00:21:01: %SW_MATM-4-MACFLAP_NOTIF: Host 00e0.fc09.bcf9 in vlan 1 is flapping between port Gi1/0/6 and port Po30Mar 21 00:22:01: %SW_MATM-4-MACFLAP_NOTIF: Host 00e0.fc09.bcf9 in vlan 1 is flapping between port Gi1/0/6 and port Po30Mar 21 00:57:05: %SW_MATM-4-MACFLAP_NOTIF: Host 00e0.fc09.bcf9 in vlan 1 is flapping between port Po30 and port Po31Mar 21 00:58:06: %SW_MATM-4-MACFLAP_NOTIF: Host 00e0.fc09.bcf9 in vlan 1 is flapping between port Po30 and port Po31Mar 21 00:59:06: %SW_MATM-4-MACFLAP_NOTIF: Host 00e0.fc09.bcf9 in vlan 1 is flapping between port Po30 and port Po31Mar 21 01:00:06: %SW_MATM-4-MACFLAP_NOTIF: Host 00e0.fc09.bcf9 in vlan 1 is flapping between port Po30 and port Po31Mar 21 01:01:06: %SW_MATM-4-MACFLAP_NOTIF: Host 00e0.fc09.bcf9 in vlan 1 is flapping between port Po30 and port Po31Mar 21 01:36:10: %SW_MATM-4-MACFLAP_NOTIF: Host 00e0.fc09.bcf9 in vlan 1 is flapping between port Po30 and port Po31Mar 21 01:37:10: %SW_MATM-4-MACFLAP_NOTIF: Host 00e0.fc09.bcf9 in vlan 1 is flapping between port Po30 and port Po31Mar 21 01:38:10: %SW_MATM-4-MACFLAP_NOTIF: Host 00e0.fc09.bcf9 in vlan 1 is flapping between port Po30 and port Po31Mar 21 01:39:11: %SW_MATM-4-MACFLAP_NOTIF: Host 00e0.fc09.bcf9 in vlan 1 is flapping between port Po30 and port Po31Mar 21 01:40:11: %SW_MATM-4-MACFLAP_NOTIF: Host 00e0.fc09.bcf9 in vlan 1 is flapping between port Po30 and port Po3
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Featured Answers
Created Mar 30, 2018 13:04:09 Helpful(2) Helpful(2)

I think this mac-flap log belongs to a Cisco device :) Po it's a port-channel interface :)

For Huawei, please check the following link to find more details about Mac-flap and what are the actions required to mitigate the phenomenon.

http://support.huawei.com/hedex/pages/EDOC1000081667DEE0811N/07/EDOC1000081667DEE0811N/07/resources/dc/dc_cfg_mac_1037.html?ft=0&fe=10&hib=10.3.4.3.7.3.1&id=dc_cfg_mac_1037&text=Configuring%20Global%20MAC%20Address%20Flapping%20Detection&docid=EDOC1000081667
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“We only get answers to the questions that we ask.” physicist Werner Heisenberg
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StarOfWest Created Mar 21, 2018 09:48:21 Helpful(0) Helpful(0)

Can you tell me the model and software version of the system that shows those traps?
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“We only get answers to the questions that we ask.” physicist Werner Heisenberg
owenchen Created Mar 22, 2018 01:51:31 Helpful(0) Helpful(0)

MODEL : S5720-52X-PWR-SI-AC
VRP (R) software, Version 5.160 (S5720 V200R008C00SPC500)
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Daniel_Ger Created Mar 30, 2018 08:19:42 Helpful(0) Helpful(0)

What is Port Po30? Never Seen this
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StarOfWest Created Mar 30, 2018 13:04:09 Helpful(2) Helpful(2)

I think this mac-flap log belongs to a Cisco device :) Po it's a port-channel interface :)

For Huawei, please check the following link to find more details about Mac-flap and what are the actions required to mitigate the phenomenon.

http://support.huawei.com/hedex/pages/EDOC1000081667DEE0811N/07/EDOC1000081667DEE0811N/07/resources/dc/dc_cfg_mac_1037.html?ft=0&fe=10&hib=10.3.4.3.7.3.1&id=dc_cfg_mac_1037&text=Configuring%20Global%20MAC%20Address%20Flapping%20Detection&docid=EDOC1000081667
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“We only get answers to the questions that we ask.” physicist Werner Heisenberg
owenchen Created Apr 6, 2018 08:54:22 Helpful(0) Helpful(0)

Managed to find the root cause of it .
It the NDP protocol
disable NDP protocols stop the Mac-Flapping issue.
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venkatACT Created May 23, 2018 13:58:24
where to disable NDP protocol cisco or huawei?  
venkatACT Reply venkatACT  Created May 23, 2018 14:32:07
Thanks got it.  
owenchen Created Apr 6, 2018 08:56:45 Helpful(0) Helpful(0)

Posted by b00745015 at 2018-03-30 13:04 I think this mac-flap log belongs to a Cisco device Po it's a port-channel interface For Huawe ...
yes these log are retieved from the cisco switch
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venkatACT Created May 23, 2018 14:03:39 Helpful(0) Helpful(0)

May 23 19:07:30: %SW_MATM-4-MACFLAP_NOTIF: Host 00e0.fc09.bcf9 in vlan 1 is flapping between port Po6+Efp1 and port Po2+Efp1

I am getting the same log in cisco device.
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DiegoXD Created May 24, 2018 15:27:03 Helpful(0) Helpful(0)

:)
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Principe de los saiyajin

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