All MIBs › HH3C-STACK-MIB › hh3cStackMacPersistence
hh3cStackMacPersistence
Module: HH3C-STACK-MIB
OID (symbolic): HH3C-STACK-MIB::hh3cStackMacPersistence
OID (numeric): 1.3.6.1.4.1.25506.2.91.1.5
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: The mode of bridge MAC address persistence. When a stack starts, the bridge MAC address of master board will be used as that of the stack. If the master board leaves the stack, the bridge MAC address of the stack will change based on the mode of bridge MAC address persistence.
notPersist: The bridge MAC address of the new master board will be used as that of the stack immediately. persistForSixMin: The bridge MAC address will be reserved for six minutes. In this period, if the master board which has left the stack rejoins the stack, the bridge MAC address of the stack will not change. Otherwise, the bridge MAC address of the new master board will be used as that of the stack. persistForever: Whether the master leaves or not, the bridge MAC address of the stack will never change.
What is hh3cStackMacPersistence?
This controls how long the stack retains its bridge MAC address after the master device leaves, choosing between switching immediately, holding for six minutes in case the master rejoins, or never changing it. An admin sets this to persistForSixMin or persistForever to avoid disruptive MAC address changes upstream, which can cause ARP or spanning-tree churn, during a brief master failover. For example, setting this to persistForever ensures the stack's bridge MAC address stays constant permanently even through repeated master changes.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.25506.2.91.1.5 snmpwalk -v2c -c public <target> HH3C-STACK-MIB::hh3cStackMacPersistence
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.25506.2.91.1.5.1 snmpget -v2c -c public <target> HH3C-STACK-MIB::hh3cStackMacPersistence.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.25506.2.91.1.5.1 i <value>
Start monitoring H3C stackable switch running IRF (e.g. S5500/S7500/S12500 series) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the HH3C-STACK-MIB::hh3cStackMacPersistence OID value, configure state conditions and alerts, and monitor any H3C stackable switch running IRF (e.g. S5500/S7500/S12500 series) from a single console.
OID Breakdown
Upper-level ancestors (9 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 |
| 1.3.6.1.4.1.25506 | hh3c | HH3C-OID-MIB |
| 1.3.6.1.4.1.25506.2 | hh3cCommon | HH3C-OID-MIB |
| 1.3.6.1.4.1.25506.2.91 | hh3cStack | HH3C-OID-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.25506.2.91.1 | hh3cStackGlobalConfig | HH3C-STACK-MIB |
| 1.3.6.1.4.1.25506.2.91.1.5 | hh3cStackMacPersistence | HH3C-STACK-MIB |