GBNDeviceStack-MIB

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Organization: ADMIN

Last Updated: 2013-07-09

Category: Switch Management

Description: Manages stacking topology and member unit settings on GBN stackable switches.

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What Is GBNDeviceStack-MIB?

GBNDeviceStack-MIB is a GBN (Greentech/QTECH-family) enterprise MIB for managing switch stacking on GBN stackable switches. It exposes objects to enable or configure stacking (stackEnableRunning/stackEnableConfig), set the maximum number of stack units, and manage stackPortVirtualLinkTable entries describing the physical stacking links between member units, including their device, slot, and port identifiers and operating mode. It is directly relevant to monitoring the hardware/topology status of a switch stack: stackPortVirtualLinkLinkStatus reveals whether the physical link connecting two stack members is up, which is critical since a downed stacking link can split the stack or isolate a member unit, and a stackTrap is defined to notify on such stacking events. As a private enterprise MIB it doesn't declare dependency on other standard MIBs, though it complements the base switch MIBs for the same platform. It is deployed on stacked GBN Ethernet switches where several physical units are managed as one logical switch. Engineers can download the GBNDeviceStack-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in GBNDeviceStack-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

GBN stackable Ethernet switch

Monitoring Examples

An operator would check stackPortVirtualLinkTable, keyed by stackPortVirtualLinkDevice/Slot/PortNum, and watch stackPortVirtualLinkLinkStatus to confirm every inter-unit stacking link is up. A link reported down alongside a stackTrap notification indicates a stack member has lost its stacking connection, risking a split stack, while comparing stackPortVirtualLinkModeRunning against stackPortVirtualLinkModeConfig can reveal a stacking port that failed to negotiate its configured mode.

What Can Be Monitored

stacking enabled/disabled state
maximum stack unit count
stacking link status per member unit
stacking port operating mode (running vs configured)
stack topology change traps

Imported Objects

From ADMIN-MASTER-MIB

gbnDevice

OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Integer32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

From SNMPv2-TC

DisplayString
MacAddress
RowStatus
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
gbnDeviceStackMib	1.3.6.1.4.1.13464.1.2.2.5			gbn stack Enterprise MIB definition.
T/F stackEnableRunning	1.3.6.1.4.1.13464.1.2.2.5.1	TruthValue	read-only	stack mode running status.
T/F stackEnableConfig	1.3.6.1.4.1.13464.1.2.2.5.2	TruthValue	read-write	trigger to enable or disable stack mode, need to reboot to take effect.
I32 stackUnitMax	1.3.6.1.4.1.13464.1.2.2.5.3	Integer32	read-only	max unit members support in stack mode.
stackPortVirtualLinkTable	1.3.6.1.4.1.13464.1.2.2.5.4		not-accessible	table of virtual link.
stackPortVirtualLinkEntry	1.3.6.1.4.1.13464.1.2.2.5.4.1		not-accessible	virtuallink is a virtual link, it includes none or some real physical ports.System have two virtuallink:virtuallink 1 and virtualink 2.
I32 stackPortVirtualLinkPhyPort	1.3.6.1.4.1.13464.1.2.2.5.4.1.1	Integer32	read-only	port number of switch.
I32 stackPortVirtualLinkDevice	1.3.6.1.4.1.13464.1.2.2.5.4.1.2	Integer32	read-only	device in .
I32 stackPortVirtualLinkSlot	1.3.6.1.4.1.13464.1.2.2.5.4.1.3	Integer32	read-only	slot in .
I32 stackPortVirtualLinkPortNum	1.3.6.1.4.1.13464.1.2.2.5.4.1.4	Integer32	read-only	portnum in .
INT stackPortVirtualLinkModeRunning	1.3.6.1.4.1.13464.1.2.2.5.4.1.5	INTEGER	read-only	running status.
INT stackPortVirtualLinkModeConfig	1.3.6.1.4.1.13464.1.2.2.5.4.1.6	INTEGER	read-write	trigger to change virtuallink mode of phyical port, need to reboot to tabke effect.
INT stackPortVirtualLinkLinkStatus	1.3.6.1.4.1.13464.1.2.2.5.4.1.7	INTEGER	read-only	link status of this phyical port.
INT stackPortVirtualLinkLinkSpeed	1.3.6.1.4.1.13464.1.2.2.5.4.1.8	INTEGER	read-only	link speed of this phyical port.
stackMemberTable	1.3.6.1.4.1.13464.1.2.2.5.5		not-accessible	table of stack members.
stackMemberEntry	1.3.6.1.4.1.13464.1.2.2.5.5.1		not-accessible	members of stack system, when stack is not running, only unit 0 can use.
I32 stackMemberUnit	1.3.6.1.4.1.13464.1.2.2.5.5.1.1	Integer32	read-only	unit number, range is form 0 to (stackUnitMax - 1).
INT stackMemberMode	1.3.6.1.4.1.13464.1.2.2.5.5.1.2	INTEGER	read-only	member unit is master or slave.
I32 stackMemberNewUnit	1.3.6.1.4.1.13464.1.2.2.5.5.1.3	Integer32	read-write	trigger to change unit number, range is form 0 to (stackUnitMax - 1).need to reboot to tabke effect
I32 stackMemberPriorityRunning	1.3.6.1.4.1.13464.1.2.2.5.5.1.4	Integer32	read-only	running priorty of this unit.default is 0
I32 stackMemberPriorityConfig	1.3.6.1.4.1.13464.1.2.2.5.5.1.5	Integer32	read-write	trigger to change priortiy of this unit, need to reboot to tabke effect.default is 0.need to reboot to tabke effect
T/F stackMemberReboot	1.3.6.1.4.1.13464.1.2.2.5.5.1.6	TruthValue	read-write	trigger to reboot this unit.
I32 stackMemberVirtualLink1Hop	1.3.6.1.4.1.13464.1.2.2.5.5.1.7	Integer32	read-only	how many hops can master unit reach this unit from virtuallink 1.range is from 0 to stackUnitMax, and stackUnitMax means infinite.
I32 stackMemberVirtualLink2Hop	1.3.6.1.4.1.13464.1.2.2.5.5.1.8	Integer32	read-only	how many hops can master unit reach this unit from virtuallink 2.range is from 0 to stackUnitMax, and stackUnitMax means infinite.
MAC stackMemberMac	1.3.6.1.4.1.13464.1.2.2.5.5.1.9	MacAddress	read-only	mac address of this unit.
T/F stackLinkdownDelay	1.3.6.1.4.1.13464.1.2.2.5.6	TruthValue	read-write	enable or disable linkdown-delay function.default is disable.this mib can be accessed only when stackEnableRunning is true.
I32 stackHelloTimeOut	1.3.6.1.4.1.13464.1.2.2.5.7	Integer32	read-write	enable or disable linkdown-delay function.default is disable.default is 30 seconds.this mib can be accessed only when stackEnableRunning is true.
I32 stackLacpMadDomain	1.3.6.1.4.1.13464.1.2.2.5.8	Integer32	read-write	lacp mad domain id.default is 0.this mib can be accessed only when stackEnableRunning is true.
stackLacpMadTable	1.3.6.1.4.1.13464.1.2.2.5.9		not-accessible	table of lacp mad.this mib can be accessed only when stackEnableRunning is true.
stackLacpMadEntry	1.3.6.1.4.1.13464.1.2.2.5.9.1		not-accessible	table of lacp mad.
I32 lacpMadChannelGroup	1.3.6.1.4.1.13464.1.2.2.5.9.1.1	Integer32	read-only	lacp channel group number.
T/F lacpMadEnable	1.3.6.1.4.1.13464.1.2.2.5.9.1.2	TruthValue	read-write	enable or disable lacp mad function.default is disable.
stackMadExcludeTable	1.3.6.1.4.1.13464.1.2.2.5.10		not-accessible	table of mad exclude of port.this mib can be accessed only when stackEnableRunning is true.
stackMadExcludeEntry	1.3.6.1.4.1.13464.1.2.2.5.10.1		not-accessible	table of mad exclude of port.
I32 madExcludePort	1.3.6.1.4.1.13464.1.2.2.5.10.1.1	Integer32	read-only	port number of system.
T/F macExcludeEnable	1.3.6.1.4.1.13464.1.2.2.5.10.1.2	TruthValue	read-write	enable or disable mad exclude function.default is disable.
stackTrap	1.3.6.1.4.1.13464.1.2.2.5.11
NTF stackPortVirtualLinkStateChange	1.3.6.1.4.1.13464.1.2.2.5.11.1			A link state change trap signifies that the SNMP entity, acting in an agent role, has detected that the stackPortVirtualLinkLinkStatus object for one of its communication links is about to enter the down or up state from some other state.

RFC description

ADMIN device stacking MIB managing stack mode configuration, virtual links, and multi-unit member support.

Start monitoring Greentech (GBN) managed stackable switch (stacking) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download GBNDeviceStack-MIB

What Is GBNDeviceStack-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description