GBNL2PortSecurity-MIB

Description: Configures and monitors Layer 2 port security MAC address limits on GBN switches.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

GBNL2PortSecurity-MIB is a GBN enterprise MIB for configuring and monitoring Layer 2 port security on GBN switches, restricting the number and identity of MAC addresses permitted on a port. Based on the available data it centers on a notification object, portSecurityNotifications, used to alert when port security violations occur, alongside underlying per-port MAC limit configuration typical of port-security features. Its primary monitoring value is fault/security-event detection: administrators watch for port security violation traps indicating an unauthorized device attempting to connect, which can signal a rogue device or MAC-flooding attack attempt. It is a vendor-private module and, beyond standard SNMP notification conventions, does not appear to depend on other standard MIBs. It is deployed on GBN-branded enterprise Ethernet switches where port-level access control is enforced, making GBNL2PortSecurity-MIB SNMP monitoring a practical way to catch unauthorized device connections in near real time.

An admin configures a subscription to portSecurityNotifications so that when a port exceeds its allowed MAC address count or an unrecognized MAC connects, an SNMP trap fires immediately. This lets security teams detect unauthorized device connections or potential MAC-spoofing attacks on access ports in near real time, without needing to poll status continuously.

Vendor-private MIB for Admin enterprise switches; manages Layer 2 port security features and MAC address control.