WWP-LEOS-RSTP-MIB

Description: Manages Ciena LEOS Rapid Spanning Tree Protocol port configuration, bridge priority, and convergence state.

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WWP-LEOS-RSTP-MIB is a Ciena (originally World Wide Packets, "wwp") enterprise MIB for the LEOS operating system's implementation of Rapid Spanning Tree Protocol (RSTP), managing bridge/port spanning-tree parameters and convergence state on Ciena Ethernet switching platforms. It exposes domain-level spanning-tree attributes such as bridge priority and the BPDU transmission hold count, alongside (per its broader context) per-port role and state information used to track topology convergence. Its monitoring value is centered on software/protocol status: verifying spanning-tree bridge priority is configured as intended for root-bridge election, and that the hold-count/timer parameters governing BPDU transmission rate are within expected bounds to avoid slow convergence or excessive control-plane traffic. It is built on and dependent on the IEEE 802.1w RSTP standard, extending the standard Bridge MIB (IEEE 802.1D-derived, RFC 4188) concepts with Ciena/WWP-specific "domain" objects. It is typically deployed on Ciena LEOS-based Ethernet switches in metro Ethernet and carrier access networks where fast Layer 2 loop convergence is required, making WWP-LEOS-RSTP-MIB SNMP monitoring valuable for verifying root-bridge and BPDU timer configuration.

An administrator polls wwpLeosRstpDomainAttrsPriority to confirm the intended root-bridge priority is set on a given spanning-tree domain, and checks wwpLeosRstpDomainAttrsTxHoldCount to verify BPDU transmission pacing is configured correctly to avoid flooding the network with control traffic during topology changes. If an unplanned root-bridge election occurs after a link flap, comparing the configured wwpLeosRstpDomainAttrsPriority across switches in the domain helps the admin identify which device unexpectedly became root and why convergence took longer than expected.

Vendor-specific MIB for Rapid Spanning Tree Protocol (RSTP) management on Ciena's (formerly World Wide Packets) LEOS platform.