Dear members,
I'm experiencing a strange behavior in my home network, with slownesses and a WiFi AP I found totally out from time to time.
Looking at my S350 swtich, I do suspect a network loop. The strange thing is, but perhaps I'm wrong, the blocking does not occur always on the same port. But once again, I'm not a network expert.
Second strange thing is, I don't see what could be the network loop, is any, the only clue is perhaps my ESXi environment running 3 VMs...
Can anyone confirm the network loop suspicion?
Is there a way to identify the root cause?
This phenomenon seems to happen only from time to time...
*Jun 21 2021 04:24:20: STP-6-PORT_STATE: Port GigabitEthernet4 moving from Blocking to Forwarding
*Jun 21 2021 04:24:18: STP-6-PORT_STATE: Port GigabitEthernet4 moving from Disabled to Blocking
*Jun 21 2021 04:24:18: TRAPMGR-5-PORT_LINK_UP: Interface GigabitEthernet4 link up
*Jun 21 2021 04:23:40: STP-6-PORT_STATE: Port GigabitEthernet4 moving from Forwarding to Disabled
*Jun 21 2021 04:23:39: TRAPMGR-5-PORT_LINK_DOWN: Interface GigabitEthernet4 link down
*Jun 20 2021 12:48:42: STP-6-PORT_STATE: Port GigabitEthernet2 moving from Blocking to Forwarding
*Jun 20 2021 12:48:39: STP-6-PORT_STATE: Port GigabitEthernet2 moving from Disabled to Blocking
*Jun 20 2021 12:48:39: TRAPMGR-5-PORT_LINK_UP: Interface GigabitEthernet2 link up
*Jun 20 2021 12:48:36: STP-6-PORT_STATE: Port GigabitEthernet2 moving from Blocking to Disabled
*Jun 20 2021 12:48:36: TRAPMGR-5-PORT_LINK_DOWN: Interface GigabitEthernet2 link down
*Jun 20 2021 12:48:35: STP-6-PORT_STATE: Port GigabitEthernet2 moving from Disabled to Blocking
*Jun 20 2021 12:48:35: TRAPMGR-5-PORT_LINK_UP: Interface GigabitEthernet2 link up
*Jun 20 2021 12:47:15: STP-6-PORT_STATE: Port GigabitEthernet2 moving from Forwarding to Disabled
*Jun 20 2021 12:25:21: STP-6-PORT_STATE: Port GigabitEthernet6 moving from Blocking to Forwarding
*Jun 20 2021 12:25:19: STP-6-PORT_STATE: Port GigabitEthernet6 moving from Disabled to Blocking
*Jun 20 2021 12:25:19: TRAPMGR-5-PORT_LINK_UP: Interface GigabitEthernet6 link up
*Jun 20 2021 12:25:04: STP-6-PORT_STATE: Port GigabitEthernet6 moving from Forwarding to Disabled
*Jun 20 2021 12:25:04: TRAPMGR-5-PORT_LINK_DOWN: Interface GigabitEthernet6 link down
*Jun 20 2021 06:32:09: TRAPMGR-5-STP_TC: Bridge topology change.
*Jun 20 2021 06:32:08: STP-6-PORT_STATE: Port GigabitEthernet1 moving from Learning to Forwarding
*Jun 20 2021 06:31:52: STP-6-PORT_STATE: Port GigabitEthernet1 moving from Blocking to Learning
*Jun 20 2021 06:31:32: STP-6-PORT_STATE: Port GigabitEthernet1 moving from Disabled to Blocking
*Jun 20 2021 06:31:32: TRAPMGR-5-PORT_LINK_UP: Interface GigabitEthernet1 link up
*Jun 20 2021 06:31:16: STP-6-PORT_STATE: Port GigabitEthernet1 moving from Forwarding to Disabled
*Jun 20 2021 06:31:16: TRAPMGR-5-PORT_LINK_DOWN: Interface GigabitEthernet1 link down
*Jun 20 2021 06:30:36: STP-6-PORT_STATE: Port GigabitEthernet1 moving from Learning to Forwarding
*Jun 20 2021 06:30:22: STP-6-PORT_STATE: Port GigabitEthernet1 moving from Blocking to Learning
*Jun 20 2021 06:30:08: TRAPMGR-5-STP_TC: Bridge topology change.
Any help would be much appreciated.
Cheers
