Hello Community,
In an attempt to troubleshoot packet drops on a LAN between 2 hosts on the same VLAN and between a host and its gateway, I decided to isolate some UniFi APs connected to my Cisco 9300 switch(Access Layer).
These are the logs I get from term mon when only the APs are connected to the switch (gig1/0/13-30). All APs are Uni-Fi APs on VLAN 20.
Gig1/0/1-12 are access ports on VLAN 18 for other users.
Gig1/0/24 is the trunk uplink to the Distribution switch.
After disconnecting them the pings are much better.
The APs seem to be causing brigding loops, but they need to be configured as well.
I observed that STP has 4 ports in BLK state.
Will be glad to get some help how to get round this.
Thanks,
Tony.
*Jun 1 18:03:52.306: %SW_MATM-4-MACFLAP_NOTIF: Host fcec.daac.32d9 in vlan 20 is flapping between port Gi1/0/15 and port Gi1/0/16
*Jun 1 18:03:54.307: %SW_MATM-4-MACFLAP_NOTIF: Host fcec.da89.489f in vlan 20 is flapping between port Gi1/0/16 and port Gi1/0/14
*Jun 1 18:04:26.045: %SW_MATM-4-MACFLAP_NOTIF: Host 18e8.29fd.0eb9 in vlan 20 is flapping between port Gi1/0/17 and port Gi1/0/16
*Jun 1 18:04:26.155: %SW_MATM-4-MACFLAP_NOTIF: Host fcec.daac.3294 in vlan 20 is flapping between port Gi1/0/17 and port Gi1/0/16
*Jun 1 18:04:26.185: %SW_MATM-4-MACFLAP_NOTIF: Host fcec.daa6.13e0 in vlan 20 is flapping between port Gi1/0/17 and port Gi1/0/16
*Jun 1 18:04:26.315: %SW_MATM-4-MACFLAP_NOTIF: Host fcec.daac.36e5 in vlan 20 is flapping between port Gi1/0/16 and port Gi1/0/17
*Jun 1 18:04:26.625: %SW_MATM-4-MACFLAP_NOTIF: Host fcec.daac.37f7 in vlan 20 is flapping between port Gi1/0/17 and port Gi1/0/16
*Jun 1 18:04:27.345: %SW_MATM-4-MACFLAP_NOTIF: Host 6022.3249.a65c in vlan 20 is flapping between port Gi1/0/17 and port Gi1/0/16
*Jun 1 18:04:27.545: %SW_MATM-4-MACFLAP_NOTIF: Host fcec.daa6.1714 in vlan 20 is flapping between port Gi1/0/17 and port Gi1/0/16
*Jun 1 18:04:27.795: %SW_MATM-4-MACFLAP_NOTIF: Host fcec.daac.3294 in vlan 20 is flapping between port Gi1/0/17 and port Gi1/0/16
*Jun 1 18:04:28.845: %SW_MATM-4-MACFLAP_NOTIF: Host fcec.daa6.13e0 in vlan 20 is flapping between port Gi1/0/16 and port Gi1/0/17
*Jun 1 18:04:29.126: %SW_MATM-4-MACFLAP_NOTIF: Host fcec.da89.3ff6 in vlan 20 is flapping between port Gi1/0/17 and port Gi1/0/20
*Jun 1 18:04:29.495: %SW_MATM-4-MACFLAP_NOTIF: Host fcec.daac.37f7 in vlan 20 is flapping between port Gi1/0/16 and port Gi1/0/17
*Jun 1 18:04:29.855: %SW_MATM-4-MACFLAP_NOTIF: Host 28af.fd71.cfc0 in vlan 20 is flapping between port Gi1/0/17 and port Gi1/0/16
*Jun 1 18:04:30.055: %SW_MATM-4-MACFLAP_NOTIF: Host fcec.daac.1637 in vlan 20 is flapping between port Gi1/0/16 and port Gi1/0/17
*Jun 1 18:04:30.575: %SW_MATM-4-MACFLAP_NOTIF: Host fcec.daac.39c6 in vlan 20 is flapping between port Gi1/0/17 and port Gi1/0/16
*Jun 1 18:04:36.665: %SW_MATM-4-MACFLAP_NOTIF: Host fcec.daa6.3ee8 in vlan 20 is flapping between port Gi1/0/19 and port Gi1/0/16
*Jun 1 18:04:36.665: %SW_MATM-4-MACFLAP_NOTIF: Host 6022.3249.a65c in vlan 20 is flapping between port Gi1/0/19 and port Gi1/0/16
*Jun 1 18:04:36.865: %SW_MATM-4-MACFLAP_NOTIF: Host fcec.daa6.13e0 in vlan 20 is flapping between port Gi1/0/19 and port Gi1/0/16
