RADLAN-STORMCTRL-MIB

All MIBs › RADLAN-STORMCTRL-MIB

Organization: Radlan - a MARVELL company. Marvell Semiconductor, Inc.

Last Updated: 2007-01-02

Category: QoS and Traffic Management, Vendor: RADLAN/Cisco SB

Description: Configures broadcast, multicast, and unknown-unicast storm control thresholds per port.

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What Is RADLAN-STORMCTRL-MIB?

RADLAN-STORMCTRL-MIB is a chipset/switch-software vendor MIB from RADLAN, whose embedded switching software is OEM'd by many Ethernet switch manufacturers, and it covers broadcast, multicast, and unknown-unicast storm control on switch ports. It exposes configuration-oriented data: which storm types are supported per platform, the rate unit (packets/sec or percentage), and per-port enable/threshold settings for each traffic type. Its monitoring value is largely operational status rather than raw hardware health -- an admin uses it to confirm storm control is armed correctly on each port and to check configured rate limits, which indirectly protects switch CPU and uplink capacity from broadcast storms. It has an implicit dependency on the switch's IF-MIB ifIndex numbering since storm control is applied per physical port. It is typically deployed on unmanaged-brand or white-label Ethernet switches built on RADLAN switching software, common in SMB and metro-Ethernet access switches. Engineers can download the RADLAN-STORMCTRL-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in RADLAN-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

RADLAN-based Ethernet switch
white-label/OEM managed switch

Monitoring Examples

An administrator would poll rlStormCtrlTable/rlStormCtrlEntry per port to verify rlStormCtrlUnknownUnicastEnable and rlStormCtrlUnknownUnicastRate are set as expected after a config push, and check rlStormCtrlRateType to confirm whether the limit is percentage- or pps-based. An unknown-unicast counter reaching its configured rlStormCtrlUnknownUnicastRate ceiling repeatedly would indicate a switching loop or MAC flooding event on that port. rlStormCtrlMibVersion and rlStormCtrlTypeSupport tell the poller which storm-control features the specific hardware SKU actually implements before attempting to set thresholds.

What Can Be Monitored

per-port storm control enable state
broadcast/multicast/unknown-unicast rate thresholds
storm control rate unit (pps vs percent)
supported storm-control traffic types
dependency between storm-control types

Imported Objects

From BRIDGE-MIB

dot1dBasePort

OBJECT-TYPE

From IF-MIB

InterfaceIndex

From RADLAN-MIB

rnd	OBJECT-IDENTITY

From SNMPv2-SMI

Counter64
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString
TruthValue

How to Use in IPNetwork Monitor

Example using rlStormCtrlRateLimOperPassCnt OID:

Select a RADLAN-based Ethernet switch, white-label/OEM managed switch (broadcast/multicast/unknown-unicast storm control) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type rlStormCtrlRateLimOperPassCnt into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. It reports number of passed counter in bytes. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter64-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
rlStormCtrl	1.3.6.1.4.1.89.77			This private MIB module defines storm control private MIBs.
T/F rlStormCtrlBroadcastEnable	1.3.6.1.4.1.89.77.8.1.6	TruthValue	read-write	enable or disable the storm control for Broadcast frames
U32 rlStormCtrlBroadcastOperRate	1.3.6.1.4.1.89.77.8.1.19	Unsigned32	read-only	Operative storm control rate limit for the Broadcast frames. The value will be 0 if rlStormCtrlRateType is not from type precentages.
U32 rlStormCtrlBroadcastRate	1.3.6.1.4.1.89.77.8.1.7	Unsigned32	read-write	set the storm control rate limit for the Broadcast frames, 0 indicate blocking of frames from this type.
rlStormCtrlClearCountersEntry	1.3.6.1.4.1.89.77.14.1		not-accessible	clear storm-control counters
U32 rlStormCtrlClearCountersIndex	1.3.6.1.4.1.89.77.14.1.1	Unsigned32	read-only	Index of the table that equals to 1 always.
NUM rlStormCtrlClearCountersInterface	1.3.6.1.4.1.89.77.14.1.3	InterfaceIndex	read-write	The Port number or all ports.
rlStormCtrlClearCountersTable	1.3.6.1.4.1.89.77.14		not-accessible	The table clear storm-control counters
RLS rlStormCtrlClearCountersTraffic	1.3.6.1.4.1.89.77.14.1.2	RlStormCtrlRateLimTrafficType	read-write	Traffic type for storm-control counter.
OCT rlStormCtrlEnbaleDependencyBetweenTypes	1.3.6.1.4.1.89.77.6	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)
rlStormCtrlEntry	1.3.6.1.4.1.89.77.8.1		not-accessible	storm control protection, defined per port,frame type and rate
INT rlStormCtrlGroupBroadcastId	1.3.6.1.4.1.89.77.9.1.3	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.
rlStormCtrlGroupEntry	1.3.6.1.4.1.89.77.9.1		not-accessible	group id for each supported frame type defined per port.
INT rlStormCtrlGroupMulticastId	1.3.6.1.4.1.89.77.9.1.4	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.
rlStormCtrlGroupTable	1.3.6.1.4.1.89.77.9		not-accessible	The table contains per port for each supported frame type to which group it belongs.
INT rlStormCtrlGroupUnknownMulticastId	1.3.6.1.4.1.89.77.9.1.2	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 rlStormCtrlGroupUnknownUnicastId	1.3.6.1.4.1.89.77.9.1.1	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 rlStormCtrlMibVersion	1.3.6.1.4.1.89.77.2	INTEGER	read-only	MIB's version, the current version is 3.
T/F rlStormCtrlMulticastEnable	1.3.6.1.4.1.89.77.8.1.8	TruthValue	read-write	enable or disable the storm control for multicast frames
U32 rlStormCtrlMulticastRate	1.3.6.1.4.1.89.77.8.1.9	Unsigned32	read-write	set the storm control rate limit for the multicast frames, 0 indicate blocking of frames from this type.
OCT rlStormCtrlRateDependencyBetweenTypes	1.3.6.1.4.1.89.77.7	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.
RLS rlStormCtrlRateLimCfgAction	1.3.6.1.4.1.89.77.12.1.4	RlStormCtrlActionType	read-write	send a trap when a storm occurs on a port or/and shut down a port when a storm occurs on the port.
U32 rlStormCtrlRateLimCfgBurst	1.3.6.1.4.1.89.77.12.1.5	Unsigned32	read-write	committed burst in bytes for rate-limit
rlStormCtrlRateLimCfgEntry	1.3.6.1.4.1.89.77.12.1		not-accessible	storm-control and rate-limit configuration, defined per port
U32 rlStormCtrlRateLimCfgRate	1.3.6.1.4.1.89.77.12.1.2	Unsigned32	read-write	block the flooding of packets when the value specified is reached.
rlStormCtrlRateLimCfgTable	1.3.6.1.4.1.89.77.12		not-accessible	The table contains the storm-control and rate-limit configuration per port
RLS rlStormCtrlRateLimCfgTraffic	1.3.6.1.4.1.89.77.12.1.1	RlStormCtrlRateLimTrafficType	read-write	traffic type for storm-control and rate-limit.
RLS rlStormCtrlRateLimCfgUnit	1.3.6.1.4.1.89.77.12.1.3	RlStormCtrlRateUnitType	read-write	suppression level in percentage (for storm-control only) or in kilobits per second.
INT rlStormCtrlRateLimMibVersion	1.3.6.1.4.1.89.77.11	INTEGER	read-only	MIB's version, the current version is 1.
C64 rlStormCtrlRateLimOperDropCnt	1.3.6.1.4.1.89.77.13.1.2	Counter64	read-only	number of dropped counter in bytes.
rlStormCtrlRateLimOperEntry	1.3.6.1.4.1.89.77.13.1		not-accessible	storm-control and rate-limit operative values per port
STR rlStormCtrlRateLimOperLastDropTime	1.3.6.1.4.1.89.77.13.1.3	DisplayString	read-only	last Drop time in format ddmmyyyyhhmmss.
C64 rlStormCtrlRateLimOperPassCntEx	1.3.6.1.4.1.89.77.13.1.1	Counter64	read-only	number of passed counter in bytes.
rlStormCtrlRateLimOperTable	1.3.6.1.4.1.89.77.13		not-accessible	The table contains the operative values for storm-control and rate-limit per port
T/F rlStormCtrlRateLimSupport	1.3.6.1.4.1.89.77.10	TruthValue	read-only	Identify if the strom-control and rate-limit is supported
OCT rlStormCtrlRateSupportPerType	1.3.6.1.4.1.89.77.5	OCTET STRING	read-only	identify if rate control is supported for each frame type
RLS rlStormCtrlRateType	1.3.6.1.4.1.89.77.8.1.1	RlStormCtrlRateUnit	read-write	indicate the rate unit type
OCT rlStormCtrlRateUnitTypeSupport	1.3.6.1.4.1.89.77.3	OCTET STRING	read-only	the supported rate unit type for the storm rate control
T/F rlStormCtrlSetDefaultBroadcastEnable	1.3.6.1.4.1.89.77.8.1.15	TruthValue	read-write	indicate if return the storm control enable for Broadcast frames to its default.
T/F rlStormCtrlSetDefaultBroadcastRate	1.3.6.1.4.1.89.77.8.1.16	TruthValue	read-write	indicate if return the storm control rate limit for the Broadcast frames to its default.
T/F rlStormCtrlSetDefaultMulticastEnable	1.3.6.1.4.1.89.77.8.1.17	TruthValue	read-write	indicate if return the storm control for multicast frames to its default.
T/F rlStormCtrlSetDefaultMulticastRate	1.3.6.1.4.1.89.77.8.1.18	TruthValue	read-write	indicate if return the storm control rate limit for the multicast frames to its default.
T/F rlStormCtrlSetDefaultRateType	1.3.6.1.4.1.89.77.8.1.10	TruthValue	read-write	indicate if return the rate unit type to its default.
T/F rlStormCtrlSetDefaultUnknownMulticastEnable	1.3.6.1.4.1.89.77.8.1.13	TruthValue	read-write	indicate if return the storm control enable for unknown multicast frames to its default.
T/F rlStormCtrlSetDefaultUnknownMulticastRate	1.3.6.1.4.1.89.77.8.1.14	TruthValue	read-write	indicate if return the storm control rate limit for the unknown multicast frames to its default.
T/F rlStormCtrlSetDefaultUnknownUnicastEnable	1.3.6.1.4.1.89.77.8.1.11	TruthValue	read-write	indicate if return the storm control enable for unknown unicast frames to its default.
T/F rlStormCtrlSetDefaultUnknownUnicastRate	1.3.6.1.4.1.89.77.8.1.12	TruthValue	read-write	indicate if return the storm control rate limit for the unknown unicast frames to its default.
T/F rlStormCtrlSupport	1.3.6.1.4.1.89.77.1	TruthValue	read-only	Identify if the strom control protection is supported
rlStormCtrlTable	1.3.6.1.4.1.89.77.8		not-accessible	The table contains the storm control protection per port
OCT rlStormCtrlTypeSupport	1.3.6.1.4.1.89.77.4	OCTET STRING	read-only	the supported frame type for the storm control protection
T/F rlStormCtrlUnknownMulticastEnable	1.3.6.1.4.1.89.77.8.1.4	TruthValue	read-write	enable or disable the storm control for unknown multicast frames
U32 rlStormCtrlUnknownMulticastRate	1.3.6.1.4.1.89.77.8.1.5	Unsigned32	read-write	set the storm control rate limit for the unknown multicast frames, 0 indicate blocking of frames from this type.
T/F rlStormCtrlUnknownUnicastEnable	1.3.6.1.4.1.89.77.8.1.2	TruthValue	read-write	enable or disable the storm control for unknown unicast frames
U32 rlStormCtrlUnknownUnicastRate	1.3.6.1.4.1.89.77.8.1.3	Unsigned32	read-write	set the storm control rate limit for the unknown unicast frames, 0 indicate blocking of frames from this type.

RFC description

Radlan Networks (acquired by Cortina) vendor-private MIB for storm control (broadcast/multicast flooding); configures and monitors traffic suppression thresholds on switch ports.

Start monitoring RADLAN-based Ethernet switch, white-label/OEM managed switch (broadcast/multicast/unknown-unicast storm control) 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 RADLAN-STORMCTRL-MIB