OPNsense Forum

English Forums => 18.7 Legacy Series => Topic started by: hes on January 09, 2019, 12:09:45 pm

Title: mac flaps on catalyst
Post by: hes 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
Title: Re: mac flaps on catalyst
Post by: mimugmail on January 09, 2019, 12:14:29 pm
You should see something in system.log what triggered the change ...
Title: Re: mac flaps on catalyst
Post by: hes on January 09, 2019, 03:31:47 pm
Under System: Log Files: General it only shows the following:

Jan 9 15:26:21   kernel: 6
Jan 9 15:26:21   syslogd: kernel boot file is /boot/kernel/kernel
Jan 9 15:26:20   syslogd: exiting on signal 15
Jan 9 15:26:14   syslogd: kernel boot file is /boot/kernel/kernel
Jan 9 15:26:13   syslogd: exiting on signal 15
Jan 9 15:24:59   kernel: DF,17,udp,1356,10.130.83.14,239.0.0.2,60188,5000,1336
Jan 9 15:24:59   syslogd: kernel boot file is /boot/kernel/kernel
Title: Re: mac flaps on catalyst
Post by: mimugmail on January 09, 2019, 08:30:36 pm
3 Vlan VIPs?
Title: Re: mac flaps on catalyst
Post by: hes on January 11, 2019, 09:42:30 am
Not sure what you mean by that? Can you elaborate?