| mstp.cist_bridge.hw | CIST Bridge Identifier | 6-byte Hardware (MAC) Address | |
| mstp.cist_internal_root_path_cost | CIST Internal Root Path Cost | Unsigned 32-bit integer | |
| mstp.cist_remaining_hops | CIST Remaining hops | Unsigned 8-bit integer | |
| mstp.config_digest | MST Config digest | Byte array | |
| mstp.config_format_selector | MST Config ID format selector | Unsigned 8-bit integer | |
| mstp.config_name | MST Config name | String | |
| mstp.config_revision_level | MST Config revision | Unsigned 16-bit integer | |
| mstp.msti.bridge_priority | Bridge Identifier Priority | Unsigned 8-bit integer | |
| mstp.msti.flags | MSTI flags | Unsigned 8-bit integer | |
| mstp.msti.port_priority | Port identifier prority | Unsigned 8-bit integer | |
| mstp.msti.remaining_hops | Remaining hops | Unsigned 8-bit integer | |
| mstp.msti.root.hw | Regional Root | 6-byte Hardware (MAC) Address | |
| mstp.msti.root_cost | Internal root path cost | Unsigned 32-bit integer | |
| mstp.version_3_length | MST Extension, Length | Unsigned 16-bit integer | |
| stp.bridge.hw | Bridge Identifier | 6-byte Hardware (MAC) Address | |
| stp.flags | BPDU flags | Unsigned 8-bit integer | |
| stp.flags.agreement | Agreement | Boolean | |
| stp.flags.forwarding | Forwarding | Boolean | |
| stp.flags.learning | Learning | Boolean | |
| stp.flags.port_role | Port Role | Unsigned 8-bit integer | |
| stp.flags.proposal | Proposal | Boolean | |
| stp.flags.tc | Topology Change | Boolean | |
| stp.flags.tcack | Topology Change Acknowledgment | Boolean | |
| stp.forward | Forward Delay | Double-precision floating point | |
| stp.hello | Hello Time | Double-precision floating point | |
| stp.max_age | Max Age | Double-precision floating point | |
| stp.msg_age | Message Age | Double-precision floating point | |
| stp.port | Port identifier | Unsigned 16-bit integer | |
| stp.protocol | Protocol Identifier | Unsigned 16-bit integer | |
| stp.root.cost | Root Path Cost | Unsigned 32-bit integer | |
| stp.root.hw | Root Identifier | 6-byte Hardware (MAC) Address | |
| stp.type | BPDU Type | Unsigned 8-bit integer | |
| stp.version | Protocol Version Identifier | Unsigned 8-bit integer | |
| stp.version_1_length | Version 1 Length | Unsigned 8-bit integer | |