CISCO-SVI-AUTOSTATE-MIB

All MIBs › CISCO-SVI-AUTOSTATE-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2004-04-06

Category: Cisco Devices, Network Interfaces, VLAN and Bridging

Description: Manages SVI autostate tracking which controls the up/down state of Layer 3 SVIs based on member port availability.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) 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.

What Is CISCO-SVI-AUTOSTATE-MIB?

CISCO-SVI-AUTOSTATE-MIB configures the Switch Virtual Interface (SVI) autostate feature, which dynamically computes the up/down operational state of a Layer 3 SVI based on the availability of its participating member switch ports. It belongs to the Layer 2/Layer 3 switching-resiliency technology area and exposes global feature-enable status, tracked VLAN ranges, and per-interface autostate mode configuration. Its monitoring purpose is to confirm the software logic governing SVI up/down state is correctly enabled and scoped, so that an SVI is automatically brought down when all its member ports fail — preventing routing traffic from being black-holed toward a VLAN with no functioning physical ports. It is a self-contained Cisco feature MIB with no explicit dependency on other MIBs beyond standard interface/VLAN conventions (e.g. IF-MIB for the underlying interface state it drives). It is typically deployed on Cisco Catalyst switches acting as Layer 3 switches/routers for VLAN interfaces where port-level failures must be reflected in SVI state. Engineers can download the CISCO-SVI-AUTOSTATE-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-SVI-AUTOSTATE-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

Cisco Catalyst Layer 3 switches

Monitoring Examples

An operator would poll csaFeatureEnable and csaTrackedVlansLow/csaTrackedVlansHigh to confirm the autostate feature is enabled and covers the expected VLAN range. Checking csaIfConfigTable's csaInterfaceMode per interface would reveal whether a specific access-layer port is correctly configured to be tracked for autostate purposes, so that if all such ports on a VLAN go down, the corresponding SVI is automatically marked down rather than continuing to advertise reachability it can no longer provide.

What Can Be Monitored

autostate feature enabled/disabled
tracked VLAN range
per-interface autostate mode

Imported Objects

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From IF-MIB

ifIndex

OBJECT-TYPE

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
ciscoSVIAutostateMIB	1.3.6.1.4.1.9.9.376			The MIB module is for configuration of the switch virtual interface (SVI) autostate feature. Autostate feature is a mechanism to calculate the state of a SVI dynamically when some condition occurs such as a failure of a participating interface in that SVI.
ciscoSVIAutostateMIBNotifs	1.3.6.1.4.1.9.9.376.0
ciscoSVIAutostateMIBObjects	1.3.6.1.4.1.9.9.376.1
csaGlobal	1.3.6.1.4.1.9.9.376.1.1
T/F csaFeatureEnable	1.3.6.1.4.1.9.9.376.1.1.1	TruthValue	read-write	This object indicates whether the autostate feature is enabled. If it is set to 'false', the feature is disabled in the device and the value of csaInterfaceMode does not take effect.
OCT csaTrackedVlansLow	1.3.6.1.4.1.9.9.376.1.1.2	OCTET STRING	read-write	A string of octets containing one bit per VLAN for VLANs with VlanIndex value of 0 to 2047. The first octet corresponds to VLANs with VlanIndex values of 0 through 7; the second octet to VLANs 8 through 15; etc. The most significant bit of each octet corresponds to the lowest value VlanIndex in that octet. For each VLAN, if it is tracked by the SVI autostate feature then the bit corresponding to that VLAN is set to '1'. A tracked VLAN, whose all interfaces having their cdsInterfaceMode object value of 'track' and not in forwarding state, will go down.
OCT csaTrackedVlansHigh	1.3.6.1.4.1.9.9.376.1.1.3	OCTET STRING	read-write	A string of octets containing one bit per VLAN for VLANs with VlanIndex value of 2048 to 4095. The first octet corresponds to VLANs with VlanIndex values of 2048 through 2055; the second octet to VLANs 2056 through 2063; etc. The most significant bit of each octet corresponds to the lowest value VlanIndex in that octet. For each VLAN, if it is tracked by the SVI autostate feature then the bit corresponding to that VLAN is set to '1'. A tracked VLAN, whose all interfaces having their cdsInterfaceMode object value of 'track' and not in forwarding state, will go down.
csaInterface	1.3.6.1.4.1.9.9.376.1.2
csaIfConfigTable	1.3.6.1.4.1.9.9.376.1.2.1		not-accessible	This table contains information and configuration of interface mode regarding the SVI autostate feature.
csaIfConfigEntry	1.3.6.1.4.1.9.9.376.1.2.1.1		not-accessible	There will be an entry for each interface that supports SVI autostate feature. A row instance contains the configured mode at each interface for Autostate purpose.
INT csaInterfaceMode	1.3.6.1.4.1.9.9.376.1.2.1.1.1	INTEGER	read-write	This object indicates the interface mode regarding SVI autostate feature. This object only takes effect if the value of csaFeatureEnable object is 'true'. 'normal' indicates that when SVI autostate feature is enabled, this interface will participate normally in the autostate calculation of the SVI which it associates. 'exclude' indicates that when SVI autostate feature is enabled, this interface will be excluded from the autostate calculation of the SVI which it associates. 'track' indicates that when SVI autostate feature is enabled, this interface will be tracked in the autostate calculation of the tracked SVI which it associates. If all tracked interfaces of this SVI go down, the corresponding SVI goes down.
ciscoSVIAutostateMIBConformance	1.3.6.1.4.1.9.9.376.2
csaMIBCompliances	1.3.6.1.4.1.9.9.376.2.1
csaMIBCompliance	1.3.6.1.4.1.9.9.376.2.1.1			The compliance statement for the CISCO-SVI-AUTOSTATE-MIB
csaMIBGroups	1.3.6.1.4.1.9.9.376.2.2
ciscoSVIAutostateGroup	1.3.6.1.4.1.9.9.376.2.2.1			A collection of objects which are used to configure as well as show information regarding the SVI autostate feature.
ciscoSVITrackedVlanGroup	1.3.6.1.4.1.9.9.376.2.2.2			A collection of objects which are used to configure as well as show information regarding VLANs tracked by the SVI autostate feature.

RFC description

Switch Virtual Interface autostate feature configuration for dynamic SVI status calculation.

Start monitoring Cisco Catalyst Layer 3 switches 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 CISCO-SVI-AUTOSTATE-MIB

What Is CISCO-SVI-AUTOSTATE-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description