CISCOSB-STORMCTRL-MIB

All MIBs › CISCOSB-STORMCTRL-MIB

Organization: Cisco Small Business

Last Updated: 2007-01-02

Category: Network Interfaces, Vendor: RADLAN/Cisco SB

Description: Configures broadcast, multicast, and unknown unicast storm-control thresholds on Cisco Small Business switch ports.

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What Is CISCOSB-STORMCTRL-MIB?

CISCOSB-STORMCTRL-MIB is a Cisco Small Business (originally RAD/Layer3-based, hence the 'rl' prefix) enterprise MIB that configures storm-control thresholds for broadcast, multicast, and unknown-unicast traffic on switch ports. It exposes per-port configuration of storm-control type, enable/disable state, and rate thresholds, along with platform capability indicators describing which storm types and rate units the device supports. Rather than hardware health, this MIB's monitoring value lies in traffic/performance control: identifying which ports have storm control enabled and at what rate, which helps correlate port shutdowns or packet drops with a triggered storm-control action during a broadcast storm. It has no explicit dependency on other MIBs beyond standard SNMPv2 conventions and the underlying IF-MIB interface model for port indexing. It is deployed on Cisco Small Business switches in SMB network environments to protect against Layer 2 broadcast/multicast storms. Engineers can download the CISCOSB-STORMCTRL-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCOSB-STORMCTRL-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 Small Business switch

Monitoring Examples

An administrator would poll rlStormCtrlTable/rlStormCtrlEntry to see the configured rlStormCtrlRateType and rlStormCtrlUnknownUnicastRate for each port, confirming whether unknown-unicast storm control is active via rlStormCtrlUnknownUnicastEnable. Checking rlStormCtrlRateSupportPerType against the platform's rlStormCtrlTypeSupport confirms which storm types the hardware can actually enforce. If a port experiences repeated link flaps during high broadcast traffic, comparing its configured storm-control rate against observed traffic volume can confirm the threshold is being hit.

What Can Be Monitored

storm control enable state per port
broadcast/multicast/unknown-unicast rate threshold
supported storm control types
rate unit type

Imported Objects

From BRIDGE-MIB

dot1dBasePort

OBJECT-TYPE

From CISCOSB-MIB

switch001

MODULE-IDENTITY

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
rlStormCtrl	1.3.6.1.4.1.9.6.1.101.77			This private MIB module defines storm control private MIBs.
T/F rlStormCtrlSupport	1.3.6.1.4.1.9.6.1.101.77.1	TruthValue	read-only	Identify if the strom control protection is supported
INT rlStormCtrlMibVersion	1.3.6.1.4.1.9.6.1.101.77.2	INTEGER	read-only	MIB's version, the current version is 3.
OCT rlStormCtrlRateUnitTypeSupport	1.3.6.1.4.1.9.6.1.101.77.3	OCTET STRING	read-only	the supported rate unit type for the storm rate control
OCT rlStormCtrlTypeSupport	1.3.6.1.4.1.9.6.1.101.77.4	OCTET STRING	read-only	the supported frame type for the storm control protection
OCT rlStormCtrlRateSupportPerType	1.3.6.1.4.1.9.6.1.101.77.5	OCTET STRING	read-only	identify if rate control is supported for each frame type
OCT rlStormCtrlEnbaleDependencyBetweenTypes	1.3.6.1.4.1.9.6.1.101.77.6	OCTET STRING	read-only	indicate enable limitation of dependency between frame types, such as enabling of multicast should be with the enabling of broadcast type (bcm 5632)
OCT rlStormCtrlRateDependencyBetweenTypes	1.3.6.1.4.1.9.6.1.101.77.7	OCTET STRING	read-only	indicate limitation of dependency between frame types for rate assignment, for example: assigning of rate limit for unicast frame must assigning the same rate for multicast and bradcast frame (bcm 5615), in case the device support enbale per each frame type but with the same rate limitation.
rlStormCtrlTable	1.3.6.1.4.1.9.6.1.101.77.8		not-accessible	The table contains the storm control protection per port
rlStormCtrlEntry	1.3.6.1.4.1.9.6.1.101.77.8.1		not-accessible	storm control protection, defined per port,frame type and rate
RLS rlStormCtrlRateType	1.3.6.1.4.1.9.6.1.101.77.8.1.1	RlStormCtrlRateUnit	read-write	indicate the rate unit type
T/F rlStormCtrlUnknownUnicastEnable	1.3.6.1.4.1.9.6.1.101.77.8.1.2	TruthValue	read-write	enable or disable the storm control for unknown unicast frames
U32 rlStormCtrlUnknownUnicastRate	1.3.6.1.4.1.9.6.1.101.77.8.1.3	Unsigned32	read-write	set the storm control rate limit for the unknown unicast frames, 0 indicate blocking of frames from this type.
T/F rlStormCtrlUnknownMulticastEnable	1.3.6.1.4.1.9.6.1.101.77.8.1.4	TruthValue	read-write	enable or disable the storm control for unknown multicast frames
U32 rlStormCtrlUnknownMulticastRate	1.3.6.1.4.1.9.6.1.101.77.8.1.5	Unsigned32	read-write	set the storm control rate limit for the unknown multicast frames, 0 indicate blocking of frames from this type.
T/F rlStormCtrlBroadcastEnable	1.3.6.1.4.1.9.6.1.101.77.8.1.6	TruthValue	read-write	enable or disable the storm control for Broadcast frames
U32 rlStormCtrlBroadcastRate	1.3.6.1.4.1.9.6.1.101.77.8.1.7	Unsigned32	read-write	set the storm control rate limit for the Broadcast frames, 0 indicate blocking of frames from this type.
T/F rlStormCtrlMulticastEnable	1.3.6.1.4.1.9.6.1.101.77.8.1.8	TruthValue	read-write	enable or disable the storm control for multicast frames
U32 rlStormCtrlMulticastRate	1.3.6.1.4.1.9.6.1.101.77.8.1.9	Unsigned32	read-write	set the storm control rate limit for the multicast frames, 0 indicate blocking of frames from this type.
T/F rlStormCtrlSetDefaultRateType	1.3.6.1.4.1.9.6.1.101.77.8.1.10	TruthValue	read-write	indicate if return the rate unit type to its default.
T/F rlStormCtrlSetDefaultUnknownUnicastEnable	1.3.6.1.4.1.9.6.1.101.77.8.1.11	TruthValue	read-write	indicate if return the storm control enable for unknown unicast frames to its default.
T/F rlStormCtrlSetDefaultUnknownUnicastRate	1.3.6.1.4.1.9.6.1.101.77.8.1.12	TruthValue	read-write	indicate if return the storm control rate limit for the unknown unicast frames to its default.
T/F rlStormCtrlSetDefaultUnknownMulticastEnable	1.3.6.1.4.1.9.6.1.101.77.8.1.13	TruthValue	read-write	indicate if return the storm control enable for unknown multicast frames to its default.
T/F rlStormCtrlSetDefaultUnknownMulticastRate	1.3.6.1.4.1.9.6.1.101.77.8.1.14	TruthValue	read-write	indicate if return the storm control rate limit for the unknown multicast frames to its default.
T/F rlStormCtrlSetDefaultBroadcastEnable	1.3.6.1.4.1.9.6.1.101.77.8.1.15	TruthValue	read-write	indicate if return the storm control enable for Broadcast frames to its default.
T/F rlStormCtrlSetDefaultBroadcastRate	1.3.6.1.4.1.9.6.1.101.77.8.1.16	TruthValue	read-write	indicate if return the storm control rate limit for the Broadcast frames to its default.
T/F rlStormCtrlSetDefaultMulticastEnable	1.3.6.1.4.1.9.6.1.101.77.8.1.17	TruthValue	read-write	indicate if return the storm control for multicast frames to its default.
T/F rlStormCtrlSetDefaultMulticastRate	1.3.6.1.4.1.9.6.1.101.77.8.1.18	TruthValue	read-write	indicate if return the storm control rate limit for the multicast frames to its default.
U32 rlStormCtrlBroadcastOperRate	1.3.6.1.4.1.9.6.1.101.77.8.1.19	Unsigned32	read-only	Operative storm control rate limit for the Broadcast frames. The value will be 0 if rlStormCtrlRateType is not from type precentages.
rlStormCtrlGroupTable	1.3.6.1.4.1.9.6.1.101.77.9		not-accessible	The table contains per port for each supported frame type to which group it belongs.
rlStormCtrlGroupEntry	1.3.6.1.4.1.9.6.1.101.77.9.1		not-accessible	group id for each supported frame type defined per port.
INT rlStormCtrlGroupUnknownUnicastId	1.3.6.1.4.1.9.6.1.101.77.9.1.1	INTEGER	read-only	Indicates the id of the group for unknown unicast frame type that the port belongs to, 0 indicates that unknown unicast frame type is not supported.
INT rlStormCtrlGroupUnknownMulticastId	1.3.6.1.4.1.9.6.1.101.77.9.1.2	INTEGER	read-only	Indicates the id of the group for unknown multicast frame type that the port belongs to, 0 indicates that unknown multicast frame type is not supported.
INT rlStormCtrlGroupBroadcastId	1.3.6.1.4.1.9.6.1.101.77.9.1.3	INTEGER	read-only	Indicates the id of the group for broadcast frame type that the port belongs to, 0 indicates that broadcast frame type is not supported.
INT rlStormCtrlGroupMulticastId	1.3.6.1.4.1.9.6.1.101.77.9.1.4	INTEGER	read-only	Indicates the id of the group for multicast frame type that the port belongs to, 0 indicates that multicast frame type is not supported.

RFC description

Manages storm control protection on Cisco Small Business switches to limit broadcast/multicast traffic rates.

Start monitoring Cisco Small Business managed switch 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 CISCOSB-STORMCTRL-MIB

What Is CISCOSB-STORMCTRL-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description