Hello,
I have a little issue related to the MAC learning by a standalone switch. My setup is very simple - two end stations connected to one switch, MAC dynamically learned without any issues, pings are ok. Once I connected a new switch to some free ports on switch under question, no trunks yet, no STP either the MACs start bouncing in the table - learning of my PCs MAC is constantly changing . I mean I learn my macs from other UP ports those that will be used for trunking bust still access ports (default config). I dont observe that behaviour on cisco 3750.
Simple bridging within one ex4200 became impossible as soon as I turn up other ports. I'm using default config at the moment. RSTP temporarly disabled/deleted though. It seems I experience MAC flooding-relearning within the box L2 table. Ping now is intermittent. If more ports connected the hosts then will not be able to reach each other.
Please advise what is missing, I think not much as I wanted this switch to perform basic L2 forwarding between local access ports.
I use Juno 12.3R5.7