Subnetwork Craft Terminal: [new]

Symptom: Intermittent connectivity between two hosts in VLAN 100, but a direct ping works sometimes. SCT action: Place the terminal in VLAN 100 and run a multicast MAC address listener (e.g., join 01:80:c2:00:00:00 ). Unexpected BPDUs from VLAN 200? VLAN leak confirmed.

The SCT uses raw sockets (e.g., AF_PACKET , DLPI , or DPDK) to send and receive frames without kernel IP stack interference. This allows it to: subnetwork craft terminal