MARVELL-ProtectedPorts-MIB

Description: Marvell Semiconductor protected ports MIB defining objects for port isolation to prevent traffic between protected switch ports.

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MARVELL-ProtectedPorts-MIB is a Marvell Semiconductor proprietary MIB for switch silicon/reference designs, defining protected ports, a Layer 2 isolation feature that prevents direct traffic forwarding between designated ports on the same switch (commonly used to isolate subscriber or guest ports from each other while still reaching an uplink). It exposes per-port protected-port type/community membership and status, plus a global enable switch and egress-port control for the feature. Rather than hardware health sensors, it is used to monitor and verify port-isolation configuration state: which ports are marked protected, which "community" (isolation group) they belong to, and whether the isolation feature is globally enabled, important for confirming security segmentation is correctly applied. It is a chipset-vendor extension typically layered on top of standard Bridge/Q-BRIDGE MIB port and VLAN objects rather than replacing them. It is deployed on Ethernet switches built on Marvell switching silicon, particularly SMB/enterprise access switches offering port-isolation/private-VLAN-like features. Network engineers evaluating or troubleshooting this functionality can download the MARVELL-ProtectedPorts-MIB file directly to load it into their MIB browser.

Polling rlProtectedPortsGlobalEnable confirms whether the protected-ports feature is active switch-wide, and walking rlProtectedPortsTable/rlProtectedPortType and rlProtectedPortCommunity per port verifies that specific access ports are correctly assigned to an isolation community. rlProtectedPortsStatusTable and rlProtectedPortEgressPorts reveal the actual computed egress port set for a protected port, letting an administrator confirm that isolated ports can still reach the uplink but not each other, catching a misconfiguration that would allow unwanted peer-to-peer traffic.

Marvell switch private MIB for managing protected ports configuration and properties on network interface devices.