All MIBs › MELLANOX-XSTP-MIB › mellanoxXstpDesignatedRoot
mellanoxXstpDesignatedRoot
Module: MELLANOX-XSTP-MIB
OID (symbolic): MELLANOX-XSTP-MIB::mellanoxXstpDesignatedRoot
OID (numeric): 1.3.6.1.4.1.33049.13.1.2.1.1.3
Node type: OBJECT-TYPE
Type: BridgeId
Access: read-only
Description: Bridge Identifier of the Root Bridge for the STI.
What is mellanoxXstpDesignatedRoot?
This value holds the Bridge Identifier of the bridge that this spanning tree instance currently considers to be the root bridge. An admin checks it to confirm which switch is acting as root for a given MST instance or VLAN, which is essential for diagnosing unexpected topology changes or root-bridge flapping. For example, if this field unexpectedly changes to a bridge ID belonging to a different switch, it signals a root bridge failover the admin should investigate.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.33049.13.1.2.1.1.3 snmpwalk -v2c -c public <target> MELLANOX-XSTP-MIB::mellanoxXstpDesignatedRoot
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.33049.13.1.2.1.1.3.1 snmpget -v2c -c public <target> MELLANOX-XSTP-MIB::mellanoxXstpDesignatedRoot.1
Start monitoring Mellanox Technologies switch (MSTP/PVRST+ spanning tree) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the MELLANOX-XSTP-MIB::mellanoxXstpDesignatedRoot OID value, configure state conditions and alerts, and monitor any Mellanox Technologies switch (MSTP/PVRST+ spanning tree) from a single console.
OID Breakdown
Upper-level ancestors (8 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 |
| 1.3.6.1.4.1.33049 | mellanox | MELLANOX-MIB |
| 1.3.6.1.4.1.33049.13 | mellanoxXstp | MELLANOX-SMI-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.33049.13.1 | mellanoxXstpMib | MELLANOX-XSTP-MIB |
| 1.3.6.1.4.1.33049.13.1.2 | mellanoxXstpObjects | MELLANOX-XSTP-MIB |
| 1.3.6.1.4.1.33049.13.1.2.1 | mellanoxXstpTable | MELLANOX-XSTP-MIB |
| 1.3.6.1.4.1.33049.13.1.2.1.1 | mellanoxXstpEntry | MELLANOX-XSTP-MIB |
| 1.3.6.1.4.1.33049.13.1.2.1.1.3 | mellanoxXstpDesignatedRoot | MELLANOX-XSTP-MIB |