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18.7 Legacy Series / mac flaps on catalyst
« on: January 09, 2019, 12:09:45 pm »
Hello again,
I've been running two OPNsense nodes with CARP configured for a while now and had to change the HP switch they are connected to for a Cisco Catalyst.
So no changes in the OPNsense config are made.
The switch constantly reports MAC flaps, and when I log in to the VIP address I keep getting logged out (as if the MAC address indeed keeps flipping).
What would be the way to tackle this issue?
*Jan 9 10:13:53.458: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.5e00.010e in vlan 883 is flapping between port Gi0/5 and port Gi0/4
*Jan 9 10:13:53.458: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.5e00.010d in vlan 883 is flapping between port Gi0/5 and port Gi0/4
*Jan 9 10:13:53.458: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.5e00.010f in vlan 883 is flapping between port Gi0/5 and port Gi0/4
*Jan 9 10:14:08.746: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.5e00.010e in vlan 883 is flapping between port Gi0/4 and port Gi0/5
*Jan 9 10:14:08.746: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.5e00.010d in vlan 883 is flapping between port Gi0/4 and port Gi0/5
*Jan 9 10:14:08.746: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.5e00.010c in vlan 883 is flapping between port Gi0/4 and port Gi0/5
*Jan 9 10:14:08.746: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.5e00.010f in vlan 883 is flapping between port Gi0/4 and port Gi0/5
I've been running two OPNsense nodes with CARP configured for a while now and had to change the HP switch they are connected to for a Cisco Catalyst.
So no changes in the OPNsense config are made.
The switch constantly reports MAC flaps, and when I log in to the VIP address I keep getting logged out (as if the MAC address indeed keeps flipping).
What would be the way to tackle this issue?
*Jan 9 10:13:53.458: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.5e00.010e in vlan 883 is flapping between port Gi0/5 and port Gi0/4
*Jan 9 10:13:53.458: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.5e00.010d in vlan 883 is flapping between port Gi0/5 and port Gi0/4
*Jan 9 10:13:53.458: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.5e00.010f in vlan 883 is flapping between port Gi0/5 and port Gi0/4
*Jan 9 10:14:08.746: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.5e00.010e in vlan 883 is flapping between port Gi0/4 and port Gi0/5
*Jan 9 10:14:08.746: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.5e00.010d in vlan 883 is flapping between port Gi0/4 and port Gi0/5
*Jan 9 10:14:08.746: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.5e00.010c in vlan 883 is flapping between port Gi0/4 and port Gi0/5
*Jan 9 10:14:08.746: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.5e00.010f in vlan 883 is flapping between port Gi0/4 and port Gi0/5