H3C-SUBNET-VLAN-MIB

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Organization: Huawei 3Com Technology Co., Ltd.

Last Updated: 2005-08-02

Category: Technology: VLAN, Vendor: H3C/HH3C

Description: H3C MIB for subnet-based VLAN assignment mapping IP subnets to VLANs for automatic VLAN classification.

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What Is H3C-SUBNET-VLAN-MIB?

H3C-SUBNET-VLAN-MIB is a vendor-specific MIB from H3C that manages subnet-based VLAN assignment, a feature that automatically classifies untagged traffic into VLANs according to the source IP subnet rather than by port. It exposes both scalar counters of how many subnet-VLAN mappings exist globally and per-port, and a detailed table mapping VLAN IDs to specific IP subnet/netmask pairs on each port. This MIB is chiefly a configuration-integrity monitoring tool, letting administrators confirm that subnet-to-VLAN classification rules are provisioned correctly and that the row status of each entry is active, rather than exposing hardware performance data. It is a private H3C MIB with no explicit dependency on IETF standards, extending the standard Q-BRIDGE-MIB VLAN model with subnet-based classification. It is typically deployed on H3C/HPE Comware access switches in networks needing automatic VLAN segregation for hosts identified only by IP subnet. Engineers can download the H3C-SUBNET-VLAN-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in H3C-SUBNET-VLAN-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

H3C/HPE Comware switches

Monitoring Examples

An administrator would query h3cSubnetVlanTable/h3cSubnetVlanEntry, indexed by h3cSubnetVlanVlanId and h3cSubnetVlanSubnetIndex, to verify that h3cSubnetVlanIpAddressValue and h3cSubnetVlanNetMaskValue still correctly map a given subnet to the intended VLAN, and that h3cSubnetVlanRowStatus shows the entry as active. Comparing h3cSubnetNumAllVlan and h3cSubnetNumPerVlan against expected counts helps detect if mappings were accidentally removed or added on a port. If a subnet-VLAN entry silently drops to an inactive row status, devices on that subnet would fall into the default VLAN instead of their intended segment. This makes the MIB useful for auditing VLAN segmentation policy compliance.

What Can Be Monitored

subnet-to-VLAN mapping table
VLAN and subnet counts per port
IP subnet/netmask bindings
mapping row status

Imported Objects

From HUAWEI-3COM-OID-MIB

h3cCommon

OBJECT-IDENTITY

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

RowStatus

OIDs

OID symbolic	OID numeric	Type	Access	Description
h3cSubnetVlan	1.3.6.1.4.1.2011.10.2.61			This MIB contains the objects for managing the subnet-based vlan configurations.
h3cSubnetVlanObjects	1.3.6.1.4.1.2011.10.2.61.1
h3cSubnetVlanScalarObjects	1.3.6.1.4.1.2011.10.2.61.1.1
I32 h3cSubnetNumAllVlan	1.3.6.1.4.1.2011.10.2.61.1.1.1	Integer32	read-only	The maximum number of subnet that can be configured on all vlans.
I32 h3cSubnetNumPerVlan	1.3.6.1.4.1.2011.10.2.61.1.1.2	Integer32	read-only	The maximum number of subnet that can be configured on each vlan.
I32 h3cSubnetNumAllPort	1.3.6.1.4.1.2011.10.2.61.1.1.3	Integer32	read-only	The maximum number of subnet that can be applied to all ports.
I32 h3cSubnetNumPerPort	1.3.6.1.4.1.2011.10.2.61.1.1.4	Integer32	read-only	The maximum number of subnet that can be applied to each port.
h3cSubnetVlanTable	1.3.6.1.4.1.2011.10.2.61.1.2		not-accessible	Subnet-based vlan configuration table.
h3cSubnetVlanEntry	1.3.6.1.4.1.2011.10.2.61.1.2.1		not-accessible	Subnet-based vlan configuration entry.
I32 h3cSubnetVlanVlanId	1.3.6.1.4.1.2011.10.2.61.1.2.1.1	Integer32	not-accessible	Vlan id.
I32 h3cSubnetVlanSubnetIndex	1.3.6.1.4.1.2011.10.2.61.1.2.1.2	Integer32	not-accessible	The subnet index value of a row in this table is from zero to the value of h3cSubnetNumPerVlan subtracting one.
IPt h3cSubnetVlanVlanIpAddressType	1.3.6.1.4.1.2011.10.2.61.1.2.1.3	InetAddressType	read-create	There are two kinds of ip address supported by vlan. One is ipv4, which is 32 bits. The other is ipv6, which is 128 bits.
IP h3cSubnetVlanIpAddressValue	1.3.6.1.4.1.2011.10.2.61.1.2.1.4	InetAddress	read-create	The ip address of the configured subnet on vlan, including ipv4 and ipv6.
IP h3cSubnetVlanNetMaskValue	1.3.6.1.4.1.2011.10.2.61.1.2.1.5	InetAddress	read-create	The net mask of the configured subnet on vlan, including ipv4 and ipv6.
ROW h3cSubnetVlanRowStatus	1.3.6.1.4.1.2011.10.2.61.1.2.1.6	RowStatus	read-create	The row status of this table.
h3cSubnetVlanPortCreateTable	1.3.6.1.4.1.2011.10.2.61.1.3		not-accessible	Subnet-based vlan port table. Add all subnet on vlan whose vlan id is h3cSubnetVlanPortInfoVlanId into port at a draught. All of the subnet information in this port is from the h3cSubnetVlanTable above, with the value of h3cSubnetVlanPortInfoVlanId as an index, which is h3cSubnetVlanVlanId in h3cSubnetVlanTable.
h3cSubnetVlanPortCreateEntry	1.3.6.1.4.1.2011.10.2.61.1.3.1		not-accessible	Subnet-based vlan port create entry.
I32 h3cSubnetVlanPortCreateIndex	1.3.6.1.4.1.2011.10.2.61.1.3.1.1	Integer32	not-accessible	The port index.
I32 h3cSubnetVlanPortCreateVlanId	1.3.6.1.4.1.2011.10.2.61.1.3.1.2	Integer32	not-accessible	The subnet-based vlan id. h3cSubnetVlanPortCreateVlanId refers to h3cSubnetVlanVlanId in h3cSubnetVlanTable. If h3cSubnetVlanPortCreateVlanId has no corresponding entry in h3cSubnetVlanTable, set operation will fail.
I32 h3cSubnetVlanPortInfoVlanId	1.3.6.1.4.1.2011.10.2.61.1.3.1.3	Integer32	read-only	This vlaue is the same as the value of h3cSubnetVlanPortCreateVlanId index. All of the subnet information in this port, is described on vlan, whose vlan id is the value of h3cSubnetVlanPortInfoVlanId. The vlan id of vlan including subnet information can be gotten here. The subnet information can be gotten in the h3cSubnetVlanTable above.
ROW h3cSubnetVlanPortRowStatus	1.3.6.1.4.1.2011.10.2.61.1.3.1.4	RowStatus	read-create	The row status of this table.
h3cSubnetVlanConformance	1.3.6.1.4.1.2011.10.2.61.2
h3cSubnetVlanCompliances	1.3.6.1.4.1.2011.10.2.61.2.1
h3cSubnetVlanCompliance	1.3.6.1.4.1.2011.10.2.61.2.1.1			The compliance statement for subnet vlan MIB.
h3cSubnetVlanGroups	1.3.6.1.4.1.2011.10.2.61.2.2
h3cSubnetVlanScalarObjectGroup	1.3.6.1.4.1.2011.10.2.61.2.2.1			A group of scalar objects describing the maximum number.
h3cSubnetVlanSubnetGroup	1.3.6.1.4.1.2011.10.2.61.2.2.2			A group of subnet vlan subnet.
h3cSubnetVlanPortCreateGroup	1.3.6.1.4.1.2011.10.2.61.2.2.3			A group of subnet vlan port create table.

RFC description

Huawei/3COM H3C MIB for subnet-based VLAN configuration; manages VLAN assignment based on IP address.

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Download H3C-SUBNET-VLAN-MIB

What Is H3C-SUBNET-VLAN-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description