HPN-ICF-STORM-CONSTRAIN-MIB

All MIBs › HPN-ICF-STORM-CONSTRAIN-MIB

Last Updated: 2008-06-06

Category: Technology: Switching/L2, Vendor: H3C/HH3C, Vendor: HP/HPE

Description: Manages storm control thresholds and actions for broadcast, multicast, and unknown-unicast on HP/Comware switches.

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What Is HPN-ICF-STORM-CONSTRAIN-MIB?

The HPN-ICF-STORM-CONSTRAIN-MIB is an HP Networking (Comware/ICF) private module that manages storm control on switch ports, protecting the network from broadcast, multicast, and unknown-unicast traffic storms that can overwhelm switch hardware and links. It exposes per-port configurable upper and lower thresholds (in configurable units) for each traffic type, along with the port's current controlled/normal status and trap configuration for threshold violations. Its monitoring value is both configuration and fault/status oriented: administrators watch hpnicfStormCtrlPortStatus to see if a port has been placed into a controlled (forwarding-blocked) state due to an over-threshold flux, which is a direct signal of a traffic storm or a misbehaving connected device. It is a vendor extension built on top of standard bridge/interface MIB concepts for identifying the affected port, and works alongside standard SNMP trap delivery mechanisms. It is deployed on HP/H3C Comware-based enterprise switches to protect LAN segments from broadcast/multicast storms, commonly in campus and data center access layers. Network engineers evaluating or troubleshooting this functionality can download the HPN-ICF-STORM-CONSTRAIN-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in HPN-ICF-STORM-CONSTRAIN-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

HP/H3C Comware-based enterprise switches

Monitoring Examples

An administrator would poll hpnicfStormCtrlTable/hpnicfStormCtrlEntry to check hpnicfStormCtrlBroadcastUpper/hpnicfStormCtrlBroadcastLower thresholds against current traffic, and watch hpnicfStormCtrlPortStatus for a transition to "controlled" indicating the port stopped forwarding due to storm suppression. A port stuck in controlled status with high hpnicfStormCtrlMulticastUnit values would point to a loop or misconfigured multicast source on that segment. hpnicfStormTrapType and hpnicfStormTrapThreshold configure when a storm-related SNMP trap should fire so operators are alerted without needing to poll continuously.

What Can Be Monitored

broadcast/multicast/unicast storm thresholds
per-port storm-controlled status
storm trap threshold configuration

Imported Objects

From HPN-ICF-OID-MIB

hpnicfCommon

OBJECT-IDENTITY

From RFC1213-MIB

ifIndex

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

RowStatus
TEXTUAL-CONVENTION

OIDs

OID symbolic	OID numeric	Type	Access	Description
hpnicfStormConstrain	1.3.6.1.4.1.11.2.14.11.15.2.66			The Storm-Constrain function is used to avoid the packet-storm on a port. Three types of flux can be set observed respectively: broadcast, multicast and unicast. If an observed flux exceeds its upper limit, this kind of flux will be recognized as over-upper-flux. This kind of flux will be considered as normal-flux until it falls below its lower limit. If any type of observed flux is over-upper-flux, the port will change its status to controlled-status, that is to stop packet forwarding to avoid storm. Only when all the observed fluxes are not over-upper-flux, will the port return to normal(forwarding) status.
hpnicfStormScalarGroup	1.3.6.1.4.1.11.2.14.11.15.2.66.1
INT hpnicfStormTrapType	1.3.6.1.4.1.11.2.14.11.15.2.66.1.1	INTEGER	accessible-for-notify	This value is used to identify the type of trap. broadcast: trap message is generated for broadcast flux exceeds upper limit or falls under lower limit on a port. multicast: trap message is generated for multicast flux exceeds upper limit or falls under lower limit on a port. unicast : trap message is generated for unicast flux exceeds upper limit or falls under lower limit on a port.
I32 hpnicfStormTrapThreshold	1.3.6.1.4.1.11.2.14.11.15.2.66.1.2	Integer32	accessible-for-notify	This value is used to figure the threshold of flux in trap message. For example, when the trap is generated for broadcast flux exceeds upper limit on a port, this value is equal to upper limit value configured. And when the trap is generated for broadcast flux fell under lower limit, this value is equal to lower limit value configured.
hpnicfStormTableGroup	1.3.6.1.4.1.11.2.14.11.15.2.66.2
hpnicfStormCtrlTable	1.3.6.1.4.1.11.2.14.11.15.2.66.2.1		not-accessible	A table containing configurations of storm-constrain.
hpnicfStormCtrlEntry	1.3.6.1.4.1.11.2.14.11.15.2.66.2.1.1		not-accessible	Detailed information of storm-constrain configurations.
INT hpnicfStormCtrlPortStatus	1.3.6.1.4.1.11.2.14.11.15.2.66.2.1.1.1	INTEGER	read-only	Status of the port: controlled: indicate that the port is in controlled status. Port which is in this status will not forward some type of packet. normal : indicate that the port is in normal status.
HPN hpnicfStormCtrlBroadcastUnit	1.3.6.1.4.1.11.2.14.11.15.2.66.2.1.1.2	HpnicfStormConstrainUnit	read-create	The unit of the broadcast flux. This value must be set together with hpnicfStormCtrlBroadcastUpper and hpnicfStormCtrlBroadcastLower.
I32 hpnicfStormCtrlBroadcastUpper	1.3.6.1.4.1.11.2.14.11.15.2.66.2.1.1.3	Integer32	read-create	The upper-limit of incoming broadcast taffic at a port within 1 second interval. Its unit depends on hpnicfStormCtrlBroadcastUnit value.
I32 hpnicfStormCtrlBroadcastLower	1.3.6.1.4.1.11.2.14.11.15.2.66.2.1.1.4	Integer32	read-create	The lower-limit of incoming broadcast taffic at a port within 1 second interval. This value must be lower than hpnicfStormCtrlBroadcastUpper value. Its unit depends on hpnicfStormCtrlBroadcastUnit value.
HPN hpnicfStormCtrlMulticastUnit	1.3.6.1.4.1.11.2.14.11.15.2.66.2.1.1.5	HpnicfStormConstrainUnit	read-create	The unit of the multicast flux. This value must be set together with hpnicfStormCtrlMulticastUpper and hpnicfStormCtrlMulticastLower.
I32 hpnicfStormCtrlMulticastUpper	1.3.6.1.4.1.11.2.14.11.15.2.66.2.1.1.6	Integer32	read-create	The upper-limit of incoming multicast taffic at a port within 1 second interval. Its unit depends on hpnicfStormCtrlMulticastUnit value.
I32 hpnicfStormCtrlMulticastLower	1.3.6.1.4.1.11.2.14.11.15.2.66.2.1.1.7	Integer32	read-create	The lower-limit of incoming multicast taffic at a port within 1 second interval. This value must be lower than hpnicfStormCtrlMulticastUpper value. Its unit depends on hpnicfStormCtrlMulticastUnit value.
HPN hpnicfStormCtrlUnicastUnit	1.3.6.1.4.1.11.2.14.11.15.2.66.2.1.1.8	HpnicfStormConstrainUnit	read-create	The unit of the unicast flux. This value must be set together with hpnicfStormCtrlUnicastUpper and hpnicfStormCtrlUnicastLower.
I32 hpnicfStormCtrlUnicastUpper	1.3.6.1.4.1.11.2.14.11.15.2.66.2.1.1.9	Integer32	read-create	The upper-limit of incoming unicast taffic at a port within 1 second interval. Its unit depends on hpnicfStormCtrlUnicastUnit value.
I32 hpnicfStormCtrlUnicastLower	1.3.6.1.4.1.11.2.14.11.15.2.66.2.1.1.10	Integer32	read-create	The lower-limit of incoming unicast taffic at a port within 1 second interval. This value must be lower than hpnicfStormCtrlUnicastUpper value. Its unit depends on hpnicfStormCtrlUnicastUnit value.
ROW hpnicfStormCtrlRowStatus	1.3.6.1.4.1.11.2.14.11.15.2.66.2.1.1.11	RowStatus	read-create	This object is responsible for managing the creation, deletion and modification of rows, which supports active status and CreatAndGo, destroy operation.
INT hpnicfStormCtrlPortMode	1.3.6.1.4.1.11.2.14.11.15.2.66.2.1.1.12	INTEGER	read-create	The storm control mode of the port.
hpnicfStormNotifications	1.3.6.1.4.1.11.2.14.11.15.2.66.3
NTF hpnicfStormRising	1.3.6.1.4.1.11.2.14.11.15.2.66.3.1			This trap message is generated when any type of the flux exceeds its upper limit on a port.
NTF hpnicfStormFalling	1.3.6.1.4.1.11.2.14.11.15.2.66.3.2			This trap message is generated when a flux which used to overflow its upper limit, falls below its lower limit on a port.

RFC description

Hewlett-Packard vendor MIB for managing broadcast/multicast/unicast packet storm control on network ports.

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Download HPN-ICF-STORM-CONSTRAIN-MIB

What Is HPN-ICF-STORM-CONSTRAIN-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description