DGS3312SR-L2MGMT-MIB

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Organization: D-Link, Inc.

Last Updated: 2000-07-15

Category: Technology: Switching/L2, Vendor: D-Link

Description: L2 management MIB for D-Link DGS-3312SR stackable switch covering VLANs, STP, stacking, and L2 management features.

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What Is DGS3312SR-L2MGMT-MIB?

This is a D-Link proprietary Layer 2 management MIB for the DGS-3312SR, a stackable Layer 2/3 switch, covering VLANs, Spanning Tree Protocol, stacking, and other L2 switching features. Notably, alongside typical L2 configuration data it also exposes CPU utilization objects, giving direct visibility into the switch's control-plane software load. This makes the MIB useful for monitoring both configuration state (VLAN/STP/stacking) and hardware/software health, since sustained high CPU utilization can indicate a control-plane storm, STP flapping, or an overloaded management process. It depends on the switch's companion L3MGMT and system/product MIBs for a complete management picture, and conceptually parallels IEEE 802.1Q/802.1D bridging standards. It is deployed in enterprise environments where DGS-3312SR units are stacked together and monitored via an SNMP-based NMS, and this DGS3312SR-L2MGMT-MIB guide documents the relevant objects for that setup.

IPNetwork Monitor allows you to monitor SNMP objects defined in DGS3312SR-L2MGMT-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

D-Link DGS-3312SR stackable Layer 2/3 switch

Monitoring Examples

Polling swL2CpuUtl5SecInfo, swL2CpuUtl1MinInfo, and swL2CpuUtl5MinInfo together lets an administrator see the switch's CPU load over short, medium, and longer windows -- a 5-second reading far above the 5-minute average would flag a transient event such as a broadcast storm or STP topology change, while the overview object swL2CpuUtlInfo gives a quick current snapshot. This is a concrete way to catch a switch whose management plane is being overwhelmed before it starts dropping SNMP or console sessions.

What Can Be Monitored

CPU utilization (5-second average)
CPU utilization (1-minute average)
CPU utilization (5-minute average)
VLAN configuration
spanning tree state
stacking status

Imported Objects

From DLINK-ID-REC-MIB

AgentNotifyLevel

From SNMPv2-SMI

Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE
TimeTicks

From SNMPv2-TC

DisplayString
RowStatus

From SW3x12SRPRIMGMT-MIB

dgs3312SR

OBJECT-IDENTITY

OIDs

OID symbolic	OID numeric	Type	Access	Description
swL2MgmtMIB	1.3.6.1.4.1.171.11.55.2.2			The Structure of Layer 2 Network Management Information for the D-Link enterprise.
swL2DevMgmt	1.3.6.1.4.1.171.11.55.2.2.1
swL2DevInfo	1.3.6.1.4.1.171.11.55.2.2.1.1
INT swDevInfoTotalNumOfPort	1.3.6.1.4.1.171.11.55.2.2.1.1.1	INTEGER	read-only	The number of ports within this switch. This value is the sum of the ports within this switch.
INT swDevInfoNumOfPortInUse	1.3.6.1.4.1.171.11.55.2.2.1.1.2	INTEGER	read-only	The number of ports in this switch connected to the segment or the end stations.
swL2DevCtrl	1.3.6.1.4.1.171.11.55.2.2.1.2
INT swL2DevCtrlStpState	1.3.6.1.4.1.171.11.55.2.2.1.2.1	INTEGER	read-write	This object can be enabled or disabled spanning tree algorithm during runtime of the system.
INT swL2DevCtrlIGMPSnooping	1.3.6.1.4.1.171.11.55.2.2.1.2.2	INTEGER	read-write	This object indicates layer 2 Internet Group Management Protocol (IGMP) capture function is enabled or disabled.
INT swL2DevCtrlRmonState	1.3.6.1.4.1.171.11.55.2.2.1.2.3	INTEGER	read-write	This object can be enabled or disabled RMON.
INT swL2DevCtrlCleanAllStatisticCounter	1.3.6.1.4.1.171.11.55.2.2.1.2.4	INTEGER	read-write	As the object is set to active, all the statistic counters will be cleared. If set to normal, do nothing.
VLA swL2DevCtrlVlanIdOfFDBTbl	1.3.6.1.4.1.171.11.55.2.2.1.2.5	VlanId	read-write	Indicates the VLAN ID which the Dot1dTpFdbTable belongs to ; The default value is DEFAULT_VLAN_ID of system .
INT swL2MACNotifyState	1.3.6.1.4.1.171.11.55.2.2.1.2.6	INTEGER	read-write	This object can enabled or disabled MAC Notification.
INT swL2MACNotifyHistorySize	1.3.6.1.4.1.171.11.55.2.2.1.2.7	INTEGER	read-write	This object indicates the history size of variation MAC in address table. The default value is 1 .
INT swL2MACNotifyInterval	1.3.6.1.4.1.171.11.55.2.2.1.2.8	INTEGER	read-write	This object indicates the time interval in second for trigger the MAC notify message.
POR swL2StackPortList	1.3.6.1.4.1.171.11.55.2.2.1.2.9	PortList	read-write	This object indicates wihich ports want to configure as stack port.
swL2DevAlarm	1.3.6.1.4.1.171.11.55.2.2.1.3
INT swL2DevAlarmNewRoot	1.3.6.1.4.1.171.11.55.2.2.1.3.1	INTEGER	read-write	When the device has become the new root of the Spanning Tree, this object decide whether to send a new root trap.
INT swL2DevAlarmTopologyChange	1.3.6.1.4.1.171.11.55.2.2.1.3.2	INTEGER	read-write	This object determine to send a trap or not when the switch topology was changed. If the object is enabled(3), the topologyChange trap is sent by the device when any of its configured ports transitions from the Learning state to the Forwarding state, or from the Forwarding state to the Blocking state. For the same port tranition, the device doesn't send the trap if this object value is disabled or other.
INT swL2DevAlarmLinkChange	1.3.6.1.4.1.171.11.55.2.2.1.3.3	INTEGER	read-write	This object determine to send a trap or not when the link was changed. If the object is enabled(3), the Link Change trap is sent by the device when any of its ports link change. The device doesn't send the trap if this object value is disabled or other.
swL2CpuUtlInfo	1.3.6.1.4.1.171.11.55.2.2.1.4
INT swL2CpuUtl5SecInfo	1.3.6.1.4.1.171.11.55.2.2.1.4.1	INTEGER	read-only	this object defines the information of cpu utilization in 5 sec
INT swL2CpuUtl1MinInfo	1.3.6.1.4.1.171.11.55.2.2.1.4.2	INTEGER	read-only	this object defines the information of cpu utilization in 1 min
INT swL2CpuUtl5MinInfo	1.3.6.1.4.1.171.11.55.2.2.1.4.3	INTEGER	read-only	this object defines the information of cpu utilization in 5 min
swL2PortMgmt	1.3.6.1.4.1.171.11.55.2.2.3
swL2PortInfoTable	1.3.6.1.4.1.171.11.55.2.2.3.1		not-accessible	A table that contains information about every port.
swL2PortInfoEntry	1.3.6.1.4.1.171.11.55.2.2.3.1.1		not-accessible	A list of information for each port of the device.
INT swL2PortInfoPortIndex	1.3.6.1.4.1.171.11.55.2.2.3.1.1.1	INTEGER	read-only	This object indicates the module's port number.(1..Max port number in the module)
INT swL2PortInfoUnitID	1.3.6.1.4.1.171.11.55.2.2.3.1.1.2	INTEGER	read-only	Indicates ID of the unit in the system
INT swL2PortInfoType	1.3.6.1.4.1.171.11.55.2.2.3.1.1.3	INTEGER	read-only	This object indicates the connector type of this port.
INT swL2PortInfoLinkStatus	1.3.6.1.4.1.171.11.55.2.2.3.1.1.4	INTEGER	read-only	This object indicates the port link status.
INT swL2PortInfoNwayStatus	1.3.6.1.4.1.171.11.55.2.2.3.1.1.5	INTEGER	read-only	This object indicates the port speed and duplex mode.
INT swL2PortInfoModuleType	1.3.6.1.4.1.171.11.55.2.2.3.1.1.6	INTEGER	read-only	This object indicates the module type of this port.
swL2PortCtrlTable	1.3.6.1.4.1.171.11.55.2.2.3.2		not-accessible	A table that contains control information about every port.
swL2PortCtrlEntry	1.3.6.1.4.1.171.11.55.2.2.3.2.1		not-accessible	A list of control information for each port of the device.
INT swL2PortCtrlPortIndex	1.3.6.1.4.1.171.11.55.2.2.3.2.1.1	INTEGER	read-only	This object indicates the module's port number.(1..Max port number in the module)
INT swL2PortCtrlUnitIndex	1.3.6.1.4.1.171.11.55.2.2.3.2.1.2	INTEGER	read-only	Indicates ID of the unit in the device
INT swL2PortCtrlAdminState	1.3.6.1.4.1.171.11.55.2.2.3.2.1.3	INTEGER	read-write	This object decide the port enabled or disabled.
INT swL2PortCtrlNwayState	1.3.6.1.4.1.171.11.55.2.2.3.2.1.4	INTEGER	read-write	Chose the port speed, duplex mode, and N-Way function mode.
INT swL2PortCtrlFlowCtrlState	1.3.6.1.4.1.171.11.55.2.2.3.2.1.5	INTEGER	read-write	The flow control mechanism is different between full duplex mode and half duplex mode. For half duplex mode, the jamming signal is asserted. For full duplex mode, IEEE 802.3x flow control function sends PAUSE frames and receives PAUSE frames.
INT swL2PortCtrlLockState	1.3.6.1.4.1.171.11.55.2.2.3.2.1.6	INTEGER	read-write	This object decide the port is locked or not.
INT swL2PortCtrlMACNotifyState	1.3.6.1.4.1.171.11.55.2.2.3.2.1.7	INTEGER	read-write	This object set each poet MAC notification state.
INT swL2PortCtrlMulticastfilter	1.3.6.1.4.1.171.11.55.2.2.3.2.1.8	INTEGER	read-write	This object decide the multicast packets filtering mode on this port .
swL2QOSMgmt	1.3.6.1.4.1.171.11.55.2.2.6
swL2QOSBandwidthControlTable	1.3.6.1.4.1.171.11.55.2.2.6.1		not-accessible	.
swL2QOSBandwidthControlEntry	1.3.6.1.4.1.171.11.55.2.2.6.1.1		not-accessible	A list of information contained in swL2QOSBandwidthControlTable.
INT swL2QOSBandwidthPortIndex	1.3.6.1.4.1.171.11.55.2.2.6.1.1.1	INTEGER	read-only	Indicates the port .
INT swL2QOSBandwidthRxRate	1.3.6.1.4.1.171.11.55.2.2.6.1.1.2	INTEGER	read-write	Indicates RX Rate(Mbit/sec) of the specifed port. Value 0 means no limit.
INT swL2QOSBandwidthTxRate	1.3.6.1.4.1.171.11.55.2.2.6.1.1.3	INTEGER	read-write	Indicates TX Rate(Mbit/sec) of the specifed port. Value 0 means no limit.
swL2QOSSchedulingTable	1.3.6.1.4.1.171.11.55.2.2.6.2		not-accessible	.
swL2QOSSchedulingEntry	1.3.6.1.4.1.171.11.55.2.2.6.2.1		not-accessible	A list of information contained in swL2QOSSchedulingTable.
INT swL2QOSSchedulingClassIndex	1.3.6.1.4.1.171.11.55.2.2.6.2.1.1	INTEGER	read-only	Indicates the hardware queue number.
INT swL2QOSSchedulingMechanism	1.3.6.1.4.1.171.11.55.2.2.6.2.1.2	INTEGER	read-only	Indicates the mechanism of QOS scheduling.
swL2QOS8021pUserPriorityTable	1.3.6.1.4.1.171.11.55.2.2.6.3		not-accessible	.
swL2QOS8021pUserPriorityEntry	1.3.6.1.4.1.171.11.55.2.2.6.3.1		not-accessible	A list of information contained in swL2QOS8021pUserPriorityTable.
INT swL2QOS8021pUserPriorityIndex	1.3.6.1.4.1.171.11.55.2.2.6.3.1.1	INTEGER	read-only	The 802.1p user priority .
INT swL2QOS8021pUserPriorityClass	1.3.6.1.4.1.171.11.55.2.2.6.3.1.2	INTEGER	read-write	The number of the switch's hardware priority queue. The switch has four hardware priority queues available. They are numbered between 0 (the lowest priority) and 3 (the highest priority).
swL2QOS8021pDefaultPriorityTable	1.3.6.1.4.1.171.11.55.2.2.6.4		not-accessible	.
swL2QOS8021pDefaultPriorityEntry	1.3.6.1.4.1.171.11.55.2.2.6.4.1		not-accessible	A list of information contained in swL2QOS8021pDefaultPriorityTable.
INT swL2QOS8021pDefaultPriorityIndex	1.3.6.1.4.1.171.11.55.2.2.6.4.1.1	INTEGER	read-only	Indicates the port number .
INT swL2QOS8021pDefaultPriority	1.3.6.1.4.1.171.11.55.2.2.6.4.1.2	INTEGER	read-write	The priority value to assign to untagged packets received by the switch ports on the switch..
INT swL2QOSSchedulingMechanismCtrl	1.3.6.1.4.1.171.11.55.2.2.6.5	INTEGER	read-write	This object can control QOS scheduling Mechanism.
swL2PortSecurityMgmt	1.3.6.1.4.1.171.11.55.2.2.7
swL2PortSecurityControlTable	1.3.6.1.4.1.171.11.55.2.2.7.1		not-accessible	port security feature which controls the address leaning capability and the traffic forwarding decision. Each port can have this function enabled or disabled. When it is enabled and a number is given said N, which allows N addresses to be learned at this port, the first N learned addresses are locked at this port as static entry. When the learned addresses number reach N, any coming packet with not learned source addresses are discarded (e.g. dropped) and no more new addresses can be learned at this port.
swL2PortSecurityControlEntry	1.3.6.1.4.1.171.11.55.2.2.7.1.1		not-accessible	A list of information contained in swL2PortSecurityControlTable.
INT swL2PortSecurityPortIndex	1.3.6.1.4.1.171.11.55.2.2.7.1.1.1	INTEGER	read-only	Indicates the secured port to lock address learning.
INT swL2PortSecurityMaxLernAddr	1.3.6.1.4.1.171.11.55.2.2.7.1.1.2	INTEGER	read-write	Indicates allowable number of addresses to be learned at this port.
INT swL2PortSecurityMode	1.3.6.1.4.1.171.11.55.2.2.7.1.1.3	INTEGER	read-write	Indicates the mode of locking address. In deleteOnTimeout(3) mode - the locked addresses can be aged out after aging timer expire. In this mode, when the locked address is aged out, the number of address can be learned has to be increased by one. In deleteOnReset(4) mode - never age out the locked addresses unless restart the system to prevent from port movement or intrusion.
INT swL2PortSecurityAdmState	1.3.6.1.4.1.171.11.55.2.2.7.1.1.4	INTEGER	read-write	Indicates administration state of locking address.
swL2TrunkMgmt	1.3.6.1.4.1.171.11.55.2.2.9
INT swL2TrunkMaxSupportedEntries	1.3.6.1.4.1.171.11.55.2.2.9.1	INTEGER	read-only	Maximum number of entries in the trunk configuration table (swL2TrunkCtrlTable).
INT swL2TrunkCurrentNumEntries	1.3.6.1.4.1.171.11.55.2.2.9.2	INTEGER	read-only	Current actived number of entries in the trunk configuration table.
swL2TrunkCtrlTable	1.3.6.1.4.1.171.11.55.2.2.9.3		not-accessible	This table specifys which ports group a set of ports(up to 8) into a single logical link.
swL2TrunkCtrlEntry	1.3.6.1.4.1.171.11.55.2.2.9.3.1		not-accessible	A list of information specifies which ports group a set of ports(up to 8) into a single logical link.
INT swL2TrunkIndex	1.3.6.1.4.1.171.11.55.2.2.9.3.1.1	INTEGER	read-only	The index of logical port trunk. The trunk group number depend on the existence of unit and module.
STR swL2TrunkName	1.3.6.1.4.1.171.11.55.2.2.9.3.1.2	DisplayString	read-create	The name of logical port trunk.
INT swL2TrunkMasterPort	1.3.6.1.4.1.171.11.55.2.2.9.3.1.3	INTEGER	read-create	The object indicates the master port number of the port trunk entry. When using Port Trunk, you can not configure the other ports of the group except the master port. Their configuration must be same as the master port (e.g. speed, duplex, enabled/disabled, flow control, and so on).
POR swL2TrunkMember	1.3.6.1.4.1.171.11.55.2.2.9.3.1.4	PortList	read-create	Indicate how many number of ports is included in this Trunk. The trunk port number depend on the existence of module. The maximum number of ports is 8 for one trunks.
INT swL2TrunkFloodingPort	1.3.6.1.4.1.171.11.55.2.2.9.3.1.5	INTEGER	read-only	The object indicates the flooding port number of the port trunk entry. The first port of the trunk is implicitly configured to be the flooding port.
INT swL2TrunkType	1.3.6.1.4.1.171.11.55.2.2.9.3.1.6	INTEGER	read-create	This object indicated that type of the trunk group. static : is static trunk group lacp : is LACP trunk group .
ROW swL2TrunkState	1.3.6.1.4.1.171.11.55.2.2.9.3.1.7	RowStatus	read-create	This object indicates the status of the entry and the trunk state. set the status by the value of notinservice means disable, and the active means enable
INT swL2TrunkAlgorithm	1.3.6.1.4.1.171.11.55.2.2.9.4	INTEGER	read-write	This object configures to part of the packet examined by the switch when selecting the egress port for transmitting load-sharing data.
swL2MirrorMgmt	1.3.6.1.4.1.171.11.55.2.2.10
INT swL2MirrorLogicTargetPort	1.3.6.1.4.1.171.11.55.2.2.10.1	INTEGER	read-write	This object indicates switch which port will sniff another port. A trunk port member cannot be configured as a target Snooping port. The port number is the sequential (logical) number which is also applied to bridge MIB, etc.
POR swL2MirrorPortSourceIngress	1.3.6.1.4.1.171.11.55.2.2.10.2	PortList	read-write	The represent the ingress into the source port packet to sniffed.
POR swL2MirrorPortSourceEgress	1.3.6.1.4.1.171.11.55.2.2.10.3	PortList	read-write	The represent the egress from the source port packet to sniffed.
INT swL2MirrorPortState	1.3.6.1.4.1.171.11.55.2.2.10.4	INTEGER	read-write	This object indicates the port mirroring state. other(1) - this entry is currently in use but the conditions under which it will remain so are different from each of the following values. disabled(2) - writing this value to the object, and then the corresponding entry will be removed from the table. enabled(3) - this entry is reside in the table.
swL2IGMPMgmt	1.3.6.1.4.1.171.11.55.2.2.11
INT swL2IGMPMaxSupportedVlans	1.3.6.1.4.1.171.11.55.2.2.11.1	INTEGER	read-only	Maximum number of Vlans in the layer 2 IGMP control table (swL2IGMPCtrlTable).
INT swL2IGMPMaxIpGroupNumPerVlan	1.3.6.1.4.1.171.11.55.2.2.11.2	INTEGER	read-only	Maximum number of multicast ip group per Vlan in the layer 2 IGMP information table (swL2IGMPQueryInfoTable).
swL2IGMPCtrlTable	1.3.6.1.4.1.171.11.55.2.2.11.3		not-accessible	The table controls the Vlan's IGMP function. Its scale depends on current VLAN state (swL2VlanInfoStatus). If VLAN is disabled mode, there is only one entry in the table, with index 1. If VLAN is in Port-Base or 802.1q mode, the number of entries can be up to 12, with index range from 1 to 12.
swL2IGMPCtrlEntry	1.3.6.1.4.1.171.11.55.2.2.11.3.1		not-accessible	The entry in IGMP control table (swL2IGMPCtrlTable). The entry is effective only when IGMP capture switch (swL2DevCtrlIGMPSnooping) is enabled.
INT swL2IGMPCtrlVid	1.3.6.1.4.1.171.11.55.2.2.11.3.1.1	INTEGER	read-only	This object indicates the IGMP control entry's VLAN id. If VLAN is disabled, the Vid is always 0 and cannot be changed by management users. If VLAN is in Port-Base mode, the Vid is arranged from 1 to 12, fixed form. If VLAN is in 802.1q mode, the Vid setting can vary from 1 to 4094 by management user, and the Vid in each entry must be unique in the IGMP Control Table.
INT swL2IGMPQueryInterval	1.3.6.1.4.1.171.11.55.2.2.11.3.1.2	INTEGER	read-write	The frequency at which IGMP Host-Query packets are transmitted on this switch.
INT swL2IGMPMaxResponseTime	1.3.6.1.4.1.171.11.55.2.2.11.3.1.3	INTEGER	read-write	The maximum query response time on this switch.
INT swL2IGMPRobustness	1.3.6.1.4.1.171.11.55.2.2.11.3.1.4	INTEGER	read-write	The Robustness Variable allows tuning for the expected packet loss on a subnet. If a subnet is expected to be lossy, the Robustness Variable may be increased. IGMP is robust to (Robustness Variable-1) packet losses.
INT swL2IGMPLastMemberQueryInterval	1.3.6.1.4.1.171.11.55.2.2.11.3.1.5	INTEGER	read-write	The Last Member Query Interval is the Max Response Time inserted into Group-Specific Queries sent in response to Leave Group messages, and is also the amount of time between Group-Specific Query messages.
INT swL2IGMPHostTimeout	1.3.6.1.4.1.171.11.55.2.2.11.3.1.6	INTEGER	read-write	The timer value for sending IGMP query packet when none was sent by the host in the LAN. The timer works in per-VLAN basis. Our device will be activated to send the query message if the timer is expired. Please reference RFC2236-1997.
INT swL2IGMPRouteTimeout	1.3.6.1.4.1.171.11.55.2.2.11.3.1.7	INTEGER	read-write	The Router Timeout is how long a host must wait after hearing a Query before it may send any IGMPv2 messages.
INT swL2IGMPLeaveTimer	1.3.6.1.4.1.171.11.55.2.2.11.3.1.8	INTEGER	read-write	When a querier receives a Leave Group message for a group that has group members on the reception interface, it sends Group-Specific Queries every swL2IGMPLeaveTimer to the group being left.
INT swL2IGMPQueryState	1.3.6.1.4.1.171.11.55.2.2.11.3.1.9	INTEGER	read-write	This object decide the IGMP query enabled or disabled.
INT swL2IGMPCurrentState	1.3.6.1.4.1.171.11.55.2.2.11.3.1.10	INTEGER	read-only	This object indicates the current IGMP query state.
INT swL2IGMPCtrlState	1.3.6.1.4.1.171.11.55.2.2.11.3.1.11	INTEGER	read-write	This object indicates the status of this entry. other(1) - this entry is currently in use but the conditions under which it will remain so are different from each of the following values. disable(2) - IGMP funtion is disabled for this entry. enable(3) - IGMP funtion is enabled for this entry.
swL2IGMPQueryInfoTable	1.3.6.1.4.1.171.11.55.2.2.11.4		not-accessible	The table contains the number current IGMP query packets which is captured by this device, as well as the IGMP query packets sent by the device.
swL2IGMPQueryInfoEntry	1.3.6.1.4.1.171.11.55.2.2.11.4.1		not-accessible	Information about current IGMP query information, provided that swL2DevCtrlIGMPSnooping and swL2IGMPCtrState of associated VLAN entry are all enabled.
INT swL2IGMPInfoVid	1.3.6.1.4.1.171.11.55.2.2.11.4.1.1	INTEGER	read-only	This object indicates the Vid of associated IGMP info table entry. It follows swL2IGMPCtrlVid in the associated entry of IGMP control table (swL2IGMPCtrlTable).
INT swL2IGMPInfoQueryCount	1.3.6.1.4.1.171.11.55.2.2.11.4.1.2	INTEGER	read-only	This object indicates the number of query packets received since the IGMP function enabled, in per-VLAN basis.
INT swL2IGMPInfoTxQueryCount	1.3.6.1.4.1.171.11.55.2.2.11.4.1.3	INTEGER	read-only	This object indicates the send count of IGMP query messages, in per-VLAN basis. In case of IGMP timer expiration, the switch sends IGMP query packets to related VLAN member ports and increment this object by 1.
swL2IGMPInfoTable	1.3.6.1.4.1.171.11.55.2.2.11.5		not-accessible	The table containing current IGMP information which captured by this device, provided that swL2DevCtrlIGMPSnooping and swL2IGMPCtrlState of associated VLAN entry are all enabled. Note that the priority of IGMP table entries is lower than Filtering Table, i.e. if there is a table hash collision between the entries of IGMP Table and Filtering Table inside the switch H/W address table, then Filtering Table entry overwrite the colliding entry of IGMP Table. See swL2FilterMgmt description also.
swL2IGMPInfoEntry	1.3.6.1.4.1.171.11.55.2.2.11.5.1		not-accessible	Information about current IGMP information which captured by this device, provided that swL2DevCtrlIGMPSnooping and swL2IGMPCtrlState of associated VLAN entry are all enabled.
INT swL2IGMPVid	1.3.6.1.4.1.171.11.55.2.2.11.5.1.1	INTEGER	read-only	This object indicates the Vid of individual IGMP table entry. It shows the Vid of IGMP report information captured on network.
IP swL2IGMPGroupIpAddr	1.3.6.1.4.1.171.11.55.2.2.11.5.1.2	IpAddress	read-only	This object is identify group ip address which is captured from IGMP packet, in per-Vlan basis.
MAC swL2IGMPMacAddr	1.3.6.1.4.1.171.11.55.2.2.11.5.1.3	MacAddress	read-only	This object is identify mac address which is corresponding to swL2IGMPGroupIpAddr, in per-Vlan basis.
POR swL2IGMPPortMap	1.3.6.1.4.1.171.11.55.2.2.11.5.1.4	PortList	read-only	This object indicates which ports are belong to the same multicast group, in per-Vlan basis. Each multicast group has a octect string to indicate with port map. The most significant bit represents the lowest numbered port, and the least significant bit represents the highest numbered port. Thus, each port of the switch is represented by a single bit within the value of this object. If that bit has a value of '1' then that port is included in the set of ports; the port is not included if its bit has a value of '0'(Note that the setting of the bit corresponding to the port from which a frame is received is irrelevant). The 4 octets is represent one unit port according its logic port. If the unit less 32 port, the other port don't care just fill zero.
INT swL2IGMPIpGroupReportCount	1.3.6.1.4.1.171.11.55.2.2.11.5.1.5	INTEGER	read-only	This object indicate how much report packet was receive by our device corresponding with this entry from IGMP function enabled, in per-Vlan basis.
swL2TrafficMgmt	1.3.6.1.4.1.171.11.55.2.2.13
swL2TrafficCtrlTable	1.3.6.1.4.1.171.11.55.2.2.13.1		not-accessible	This table specifys the storm traffic control configuration.
swL2TrafficCtrlEntry	1.3.6.1.4.1.171.11.55.2.2.13.1.1		not-accessible	A list of information specifies the storm traffic control configuration.
INT swL2TrafficCtrlGroupIndex	1.3.6.1.4.1.171.11.55.2.2.13.1.1.1	INTEGER	read-only	The index of logical port trunk. The trunk group number depend on the existence of unit and module.
INT swL2TrafficCtrlUnitIndex	1.3.6.1.4.1.171.11.55.2.2.13.1.1.2	INTEGER	read-only	Indicates ID of the unit in the device
INT swL2TrafficCtrlBMStromthreshold	1.3.6.1.4.1.171.11.55.2.2.13.1.1.3	INTEGER	read-write	This object to decide how much thousand packets per second broadcast/multicast (depend on swL2TrafficCtrlBcastStromCtrl, swL2TrafficCtrlMcastStromCtrl or swL2TrafficCtrlDlfStromCtrl objects whether is enabled) will active storm control. Whenever a port reaches its configured amount of packets in the one second time interval, the device will start dropping that type of packet, until the time interval has expired. Once the time interval has expired, the device will start forwarding that type of packet.
INT swL2TrafficCtrlBcastStromCtrl	1.3.6.1.4.1.171.11.55.2.2.13.1.1.4	INTEGER	read-write	This object indicates broadcast storm control function is enabled or disabled.
INT swL2TrafficCtrlMcastStromCtrl	1.3.6.1.4.1.171.11.55.2.2.13.1.1.5	INTEGER	read-write	This object indicates multicast storm control function is enabled or disabled.
INT swL2TrafficCtrlDlfStromCtrl	1.3.6.1.4.1.171.11.55.2.2.13.1.1.6	INTEGER	read-write	This object indicates destination lookup fail function is enabled or disabled.
swL2TrafficSegMgmt	1.3.6.1.4.1.171.11.55.2.2.14
swL2TrafficSegTable	1.3.6.1.4.1.171.11.55.2.2.14.1		not-accessible	This table specifys the port just can forward traffic to the specific port list.
swL2TrafficSegEntry	1.3.6.1.4.1.171.11.55.2.2.14.1.1		not-accessible	A list of information specifies the port with its traffic forward list.
INT swL2TrafficSegPort	1.3.6.1.4.1.171.11.55.2.2.14.1.1.1	INTEGER	read-only	The port number of the logical port.
POR swL2TrafficSegForwardPorts	1.3.6.1.4.1.171.11.55.2.2.14.1.1.2	PortList	read-write	The port list that the specific port can forward traffic.
swL2MgmtMIBTraps	1.3.6.1.4.1.171.11.55.2.2.16
swL2Notify	1.3.6.1.4.1.171.11.55.2.2.16.1
swL2NotifyPrefix	1.3.6.1.4.1.171.11.55.2.2.16.1.2
swL2NotifFirmware	1.3.6.1.4.1.171.11.55.2.2.16.1.2.0
NTF swL2macNotification	1.3.6.1.4.1.171.11.55.2.2.16.1.2.0.1			This trap indicates the mac addresses variation in address table .
NTF swL2porttypechg	1.3.6.1.4.1.171.11.55.2.2.16.1.2.0.2			This trap indicates the port type change.
swl2NotificationBidings	1.3.6.1.4.1.171.11.55.2.2.16.1.2.1
OCT swL2macNotifyInfo	1.3.6.1.4.1.171.11.55.2.2.16.1.2.1.1	OCTET STRING	read-only	This object indicates the last time reboot information.

RFC description

Layer 2 network management MIB for D-Link DGS3312 switch covering VLAN, QoS, trunking, and port security.

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What Is DGS3312SR-L2MGMT-MIB?

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RFC description