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Port flapping in etherchannel? How can I stop this?
Aug 1 13:46:24 10.2.254.60 255232: 117826: Aug 1 17:46:23: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.aad8.dc0d in vlan 1 is flapping between port Po3 and port Po5
Aug 1 13:46:07 10.2.254.60 255231: 117825: Aug 1 17:46:07: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.aad8.dc0d in vlan 1 is flapping between port Po3 and port Po5
Aug 1 13:45:26 10.2.254.60 255230: 117824: Aug 1 17:45:25: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.aad8.dc0d in vlan 1 is flapping between port Po5 and port Po3
host = 10.2.xxx.xx
source = udp:514
sourcetype = syslog
My logs are filled with this.
"Sh ether summ" displayed this:
Number of channel-groups in use: 6
Number of aggregators: 6
Group Port-channel Protocol Ports
------ ------------- ----------- -----------------------------------------------
1 Po1(SD) -
2 Po2(SU) LACP Gi2/0/9(P) Gi2/0/17(P) Gi2/0/19(P)
Gi2/0/24(P) Gi3/0/10(P) Gi3/0/11(P)
Gi3/0/23(P) Gi3/0/24(P)
3 Po3(SU) - Gi1/0/7(P) Gi1/0/19(P) Gi1/0/20(P)
Gi2/0/12(P)
4 Po4(SU) - Gi3/0/25(P) Gi3/0/26(P)
5 Po5(SU) - Gi3/0/27(P) Gi3/0/28(P)
25 Po25(SU) - Gi1/0/14(P) Gi3/0/1(P)