All MIBs › COMTROL-ES8510-MIB › mstpPerPortInfoRole
mstpPerPortInfoRole
Module: COMTROL-ES8510-MIB
OID (symbolic): COMTROL-ES8510-MIB::mstpPerPortInfoRole
OID (numeric): 1.3.6.1.4.1.2882.2.1.1.4.8.2.1.4
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: Descriptive information about MSTP switch port roles: disabled(1) MSTP is disabled on this port. root(2) A forwarding port that has been elected for the spanning-tree topology. designated(3) A forwarding port for every LAN segment. alternate(4) An alternate path to the root bridge. This path is different than using the root port. backup(5) A backup/redundant path to a segment where another switch port already connects.
What is mstpPerPortInfoRole?
This read-only value reports the MSTP role currently assigned to this port within a given instance: disabled, root, designated, alternate, backup, or master, where master specifically marks a boundary port connecting the local MST region toward the CIST root outside it. An admin uses the master role in particular to identify which port is acting as this region's gateway to the rest of the network. For example, seeing master(5) on this port confirms it's the boundary port carrying traffic from this MST region out toward the overall CIST root, rather than an internal region link.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.2882.2.1.1.4.8.2.1.4 snmpwalk -v2c -c public <target> COMTROL-ES8510-MIB::mstpPerPortInfoRole
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.2882.2.1.1.4.8.2.1.4.1 snmpget -v2c -c public <target> COMTROL-ES8510-MIB::mstpPerPortInfoRole.1
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OID Breakdown
Upper-level ancestors (6 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.2882 | comtrol | COMTROL-ES8510-MIB |
| 1.3.6.1.4.1.2882.2 | products | COMTROL-ES8510-MIB |
| 1.3.6.1.4.1.2882.2.1 | managedSwitch | COMTROL-ES8510-MIB |
| 1.3.6.1.4.1.2882.2.1.1 | es8510 | COMTROL-ES8510-MIB |
| 1.3.6.1.4.1.2882.2.1.1.4 | networkRedundancy | COMTROL-ES8510-MIB |
| 1.3.6.1.4.1.2882.2.1.1.4.8 | mstpBridgeInformation | COMTROL-ES8510-MIB |
| 1.3.6.1.4.1.2882.2.1.1.4.8.2 | mstpPerPortInfoTable | COMTROL-ES8510-MIB |
| 1.3.6.1.4.1.2882.2.1.1.4.8.2.1 | mstpPerPortInfoEntry | COMTROL-ES8510-MIB |
| 1.3.6.1.4.1.2882.2.1.1.4.8.2.1.4 | mstpPerPortInfoRole | COMTROL-ES8510-MIB |