CISCO-SWITCH-FABRIC-MIB

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Organization: Cisco Systems, Inc.

Last Updated: 2014-07-30

Category: Cisco Devices, Hardware and Environment

Description: Manages switch fabric components including crossbar switching, backplane utilization, and fabric health monitoring.

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What Is CISCO-SWITCH-FABRIC-MIB?

This is a Cisco MIB for monitoring internal switch-fabric health on Cisco switching platforms that use a crossbar or backplane fabric architecture to interconnect line cards. It exposes a fabric utilization table covering per-link type, bandwidth, and traffic in/out counters (with peak values and peak timestamps) for each fabric link, alongside notifications for fabric-related events. Its core monitoring value is performance and hardware capacity status — tracking fabric traffic and its peak values reveals whether internal fabric bandwidth is becoming a bottleneck, a critical internal-hardware health signal distinct from external interface counters. It is Cisco-specific and typically used alongside standard IF-MIB interface statistics and Cisco chassis/environmental MIBs for a complete hardware picture. It is deployed on Cisco chassis-based switches (e.g. Catalyst/Nexus modular platforms) with crossbar switch fabrics interconnecting multiple line cards. Engineers can download the CISCO-SWITCH-FABRIC-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-SWITCH-FABRIC-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 chassis-based modular switch with crossbar switch fabric

Monitoring Examples

An administrator can poll csfFabricUtilTable/csfFabricUtilEntry, indexed by csfFabricUtilIndex, to read csfFabricUtilIn and csfFabricUtilOut traffic against csfFabricUtilBandwidth for each csfFabricUtilLinkType, and check csfFabricUtilInPeak/csfFabricUtilOutPeak with their PeakTime timestamps to see when fabric utilization last spiked. Utilization consistently approaching csfFabricUtilBandwidth on a given link would indicate the internal switching fabric is nearing saturation, a capacity problem invisible from external port counters alone.

What Can Be Monitored

per-link fabric bandwidth utilization
fabric input/output traffic
peak fabric utilization and peak time
fabric link type/description

Imported Objects

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From ENTITY-MIB

PhysicalIndex
entPhysicalIndex	OBJECT-TYPE

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DateAndTime
TEXTUAL-CONVENTION
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
ciscoSwitchFabricMIB	1.3.6.1.4.1.9.9.803			This MIB module defined managed objects that facilitates the management of switching fabric information in a Cisco switch.
ciscoSwitchFabricMIBNotifs	1.3.6.1.4.1.9.9.803.0
NTF csfFabricCrcErrorNotif	1.3.6.1.4.1.9.9.803.0.1			A cfsFabricCrcErrorNotif is generated when fabric CRC errors are detected by the managed system.
ciscoSwitchFabricMIBObjects	1.3.6.1.4.1.9.9.803.1
csfFabricStatistics	1.3.6.1.4.1.9.9.803.1.1
csfFabricUtilTable	1.3.6.1.4.1.9.9.803.1.1.1		not-accessible	A table containing fabric utilization information.
csfFabricUtilEntry	1.3.6.1.4.1.9.9.803.1.1.1.1		not-accessible	A conceptual row containing the fabric utilization information for a particular type of traffic utilization of a fabric entity. An entry of this table is created if a traffic utilization on a fabric entity is detected by the managed system. An entry of this table is deleted when the removal of fabric entity.
CSF csfFabricUtilLinkType	1.3.6.1.4.1.9.9.803.1.1.1.1.1	CsfFabricLinkType	not-accessible	This object indicates the type of fabric link on which fabric traffic utilization is monitored.
U32 csfFabricUtilIndex	1.3.6.1.4.1.9.9.803.1.1.1.1.2	Unsigned32	not-accessible	This object indicates an arbitrary integer value which uniquely identifies the type of traffic utilization.
STR csfFabricUtilDescr	1.3.6.1.4.1.9.9.803.1.1.1.1.3	SnmpAdminString	read-only	This object indicates the human-readable description of the type of fabric traffic utilization.
U32 csfFabricUtilBandwidth	1.3.6.1.4.1.9.9.803.1.1.1.1.4	Unsigned32	read-only	This object indicates the bandwidth of the fabric link.
CSF csfFabricUtilIn	1.3.6.1.4.1.9.9.803.1.1.1.1.5	CsfPercentOrMinusOne	read-only	This object indicates the utilization on the fabric link input.
CSF csfFabricUtilInPeak	1.3.6.1.4.1.9.9.803.1.1.1.1.6	CsfPercentOrMinusOne	read-only	This object indicates the peak utilization on the fabric link input.
DAT csfFabricUtilInPeakTime	1.3.6.1.4.1.9.9.803.1.1.1.1.7	DateAndTime	read-only	This object indicates the time of the most recent change in the corresponding instance value of csfFabricUtilInPeak. This object contains value 0x0000010100000000 when the corresponding instance value of csfFabricUtilInPeak is '0 or '-1'.
CSF csfFabricUtilOut	1.3.6.1.4.1.9.9.803.1.1.1.1.8	CsfPercentOrMinusOne	read-only	This object indicates the utilization on the fabric link output.
CSF csfFabricUtilOutPeak	1.3.6.1.4.1.9.9.803.1.1.1.1.9	CsfPercentOrMinusOne	read-only	This object indicates the peak utilization on the fabric link output.
DAT csfFabricUtilOutPeakTime	1.3.6.1.4.1.9.9.803.1.1.1.1.10	DateAndTime	read-only	This object indicates the time of the most recent change in the corresponding instance value of csfFabricUtilOutPeak. This object contains value 0x0000010100000000 when the corresponding instance value of csfFabricUtilInPeak is '0 or '-1'.
csfNotifsControl	1.3.6.1.4.1.9.9.803.1.2
T/F csfFabricCrcErrorNotifEnable	1.3.6.1.4.1.9.9.803.1.2.1	TruthValue	read-write	This object specifies whether the system generates the cfsFabricCrcErrorNotif. A value of 'false' will prevent cfsFabricCrcErrorNotif notifications from being generated by this system.
csfNotifsOnlyInfo	1.3.6.1.4.1.9.9.803.1.3
PHY csfFabricCrcErrorEntPhysicalIndex	1.3.6.1.4.1.9.9.803.1.3.1	PhysicalIndex	accessible-for-notify	This object indicates the entPhysicalIndex of the fabric entity on which fabric CRC error happens.
STR csfFabricCrcErrorDescr	1.3.6.1.4.1.9.9.803.1.3.2	SnmpAdminString	accessible-for-notify	This object indicates the fabric CRC error description. A zero-length string indicates that the error description is not available.
ciscoSwitchFabricMIBConform	1.3.6.1.4.1.9.9.803.2
csfSwitchFabricMIBCompliances	1.3.6.1.4.1.9.9.803.2.1
csfSwitchFabricMIBCompliance	1.3.6.1.4.1.9.9.803.2.1.1			The compliance statement for the CISCO-SWITCH-FABRIC-MIB.
csfSwitchFabricMIBCompliance1	1.3.6.1.4.1.9.9.803.2.1.2			The compliance statement for the CISCO-SWITCH-FABRIC-MIB.
csfSwitchFabricMIBGroups	1.3.6.1.4.1.9.9.803.2.2
csfFabricUtilGroup	1.3.6.1.4.1.9.9.803.2.2.1			A collection of objects providing the information about utilization on the fabric link.
csfFabricCrcErrorNotifsControlGroup	1.3.6.1.4.1.9.9.803.2.2.2			A collection of objects providing notification control for csfFabricCrcErrorNotif.
csfFabricCrcErrorNotifsInfoGroup	1.3.6.1.4.1.9.9.803.2.2.3			A collection of object(s) providing the variable binding for csfFabricCrcErrorNotif.
csfFabricCrcErrorNotifsGroup	1.3.6.1.4.1.9.9.803.2.2.4			A collection of Fabric CRC Error notifications for CISCO-SWITCH-FABRIC-MIB.

RFC description

Cisco vendor MIB for switch fabric architecture and cross-bar performance monitoring; vendor-private.

Start monitoring Cisco chassis-based modular switch with crossbar switch fabric 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-SWITCH-FABRIC-MIB

What Is CISCO-SWITCH-FABRIC-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description