Network Slowness Mac Move between interfacees Per the syslog
MAC FLAP ?
Aug 7 10:33:42 EDT: %SW_MATM-4-MACFLAP_NOTIF: Host 6045.cb5d.e7d4 in vlan 18 is flapping between port Fa1/0/20 and port Fa1/0/41
Aug 7 10:23:16 EDT: %SW_MATM-4-MACFLAP_NOTIF: Host c067.af86.897f in vlan 18 is flapping between port Fa1/0/20 and port Gi1/0/1
Aug 7 10:23:22 EDT: %SW_MATM-4-MACFLAP_NOTIF: Host 6045.cb5d.e7d4 in vlan 18 is flapping between port Fa1/0/20 and port Fa1/0/41
Aug 7 10:23:27 EDT: %SW_MATM-4-MACFLAP_NOTIF: Host 448a.5bbd.964c in vlan 18 is flapping between port Fa1/0/20 and port Gi1/0/1
Aug 7 10:23:32 EDT: %SW_MATM-4-MACFLAP_NOTIF: Host c067.af86.897f in vlan 18 is flapping between port Fa1/0/20 and port Gi1/0/1
Aug 7 10:23:32 EDT: %SW_MATM-4-MACFLAP_NOTIF: Host 448a.5bbd.964c in vlan 18 is flapping between port Gi1/0/1 and port Fa1/0/20
Aug 7 10:33:42 EDT: %SW_MATM-4-MACFLAP_NOTIF: Host 6045.cb5d.e7d4 in vlan 18 is flapping between port Fa1/0/20 and port Fa1/0/41
Aug 7 10:23:16 EDT: %SW_MATM-4-MACFLAP_NOTIF: Host c067.af86.897f in vlan 18 is flapping between port Fa1/0/20 and port Gi1/0/1
Aug 7 10:23:22 EDT: %SW_MATM-4-MACFLAP_NOTIF: Host 6045.cb5d.e7d4 in vlan 18 is flapping between port Fa1/0/20 and port Fa1/0/41
Aug 7 10:23:27 EDT: %SW_MATM-4-MACFLAP_NOTIF: Host 448a.5bbd.964c in vlan 18 is flapping between port Fa1/0/20 and port Gi1/0/1
Aug 7 10:23:32 EDT: %SW_MATM-4-MACFLAP_NOTIF: Host c067.af86.897f in vlan 18 is flapping between port Fa1/0/20 and port Gi1/0/1
Aug 7 10:23:32 EDT: %SW_MATM-4-MACFLAP_NOTIF: Host 448a.5bbd.964c in vlan 18 is flapping between port Gi1/0/1 and port Fa1/0/20
ASKER
Found a unauthorized switch connected to port ...and it had multiple devices connected to it..port security did not mitigate
That switch must also have have had multiple paths to the core network. Otherwise flapping would nog occur.
flapping a quick switchover from one interface to another ... (receiving packets from one source over multiple interfaces.).
port security is about multiple mac addresses / port ... that is a different thing.
flapping a quick switchover from one interface to another ... (receiving packets from one source over multiple interfaces.).
port security is about multiple mac addresses / port ... that is a different thing.
ASKER
Sorry For late reply .. I was on Vacation. No team / channel . Was discovered that bad NIC was issue
ASKER CERTIFIED SOLUTION
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Are those ports somehow involved in a team / channel ... on the other side of the cable connected to this interface?
(or dual connected systems [ still team/channel ] connected to different switch where one of these interfaces is the trunk between the switches?...