HH3C-STORM-CONSTRAIN-MIB

All MIBs › HH3C-STORM-CONSTRAIN-MIB

Organization: Hangzhou H3C Tech. Co., Ltd.

Last Updated: 2008-06-06

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

Description: HH3C MIB for broadcast/multicast/unknown-unicast storm control configuration on H3C switch interfaces.

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What Is HH3C-STORM-CONSTRAIN-MIB?

HH3C-STORM-CONSTRAIN-MIB is an H3C enterprise MIB (under hh3cCommon) for configuring and monitoring broadcast/multicast/unknown-unicast storm control on H3C LAN switch ports. Its hh3cStormCtrlTable, indexed by ifIndex, holds per-traffic-type unit (Hh3cStormConstrainUnit: packets/sec, percent, bytes/sec, kbits/sec) and upper/lower flux thresholds, plus hh3cStormCtrlPortStatus (controlled vs. normal) reporting whether the port is currently blocking forwarding due to a storm, and hh3cStormCtrlPortMode (none/block/shutdown) for the enforcement action taken. Two scalars, hh3cStormTrapType and hh3cStormTrapThreshold, carry the traffic type and threshold value associated with hh3cStormRising and hh3cStormFalling, notifications fired when a monitored flux crosses its upper or falls back below its lower limit. This is a control-plane traffic-protection MIB, so monitoring it reveals which ports are currently storm-controlled and why, rather than raw packet counters, and it's deployed on H3C switches to protect against packet storms — administrators can download the HH3C-STORM-CONSTRAIN-MIB file to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in HH3C-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

H3C LAN switches

Monitoring Examples

An operator polls hh3cStormCtrlPortStatus for each ifIndex in hh3cStormCtrlTable to find ports currently in controlled state, and correlates a received hh3cStormRising trap (with hh3cStormTrapType indicating broadcast) against hh3cStormCtrlBroadcastUpper to confirm the port's broadcast flux actually exceeded its configured threshold.

What Can Be Monitored

per-port storm control thresholds (broadcast/multicast/unicast)
storm control unit of measure
port controlled/normal status
storm control enforcement mode (block/shutdown)
storm rising/falling notifications
row lifecycle status

Imported Objects

From HH3C-OID-MIB

hh3cCommon

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
hh3cStormConstrain	1.3.6.1.4.1.25506.2.66			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.
hh3cStormScalarGroup	1.3.6.1.4.1.25506.2.66.1
INT hh3cStormTrapType	1.3.6.1.4.1.25506.2.66.1.1	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 hh3cStormTrapThreshold	1.3.6.1.4.1.25506.2.66.1.2	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.
hh3cStormTableGroup	1.3.6.1.4.1.25506.2.66.2
hh3cStormCtrlTable	1.3.6.1.4.1.25506.2.66.2.1		not-accessible	A table containing configurations of storm-constrain.
hh3cStormCtrlEntry	1.3.6.1.4.1.25506.2.66.2.1.1		not-accessible	Detailed information of storm-constrain configurations.
INT hh3cStormCtrlPortStatus	1.3.6.1.4.1.25506.2.66.2.1.1.1	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.
HH3 hh3cStormCtrlBroadcastUnit	1.3.6.1.4.1.25506.2.66.2.1.1.2	Hh3cStormConstrainUnit	read-create	The unit of the broadcast flux. This value must be set together with hh3cStormCtrlBroadcastUpper and hh3cStormCtrlBroadcastLower.
I32 hh3cStormCtrlBroadcastUpper	1.3.6.1.4.1.25506.2.66.2.1.1.3	Integer32	read-create	The upper-limit of incoming broadcast taffic at a port within 1 second interval. Its unit depends on hh3cStormCtrlBroadcastUnit value.
I32 hh3cStormCtrlBroadcastLower	1.3.6.1.4.1.25506.2.66.2.1.1.4	Integer32	read-create	The lower-limit of incoming broadcast taffic at a port within 1 second interval. This value must be lower than hh3cStormCtrlBroadcastUpper value. Its unit depends on hh3cStormCtrlBroadcastUnit value.
HH3 hh3cStormCtrlMulticastUnit	1.3.6.1.4.1.25506.2.66.2.1.1.5	Hh3cStormConstrainUnit	read-create	The unit of the multicast flux. This value must be set together with hh3cStormCtrlMulticastUpper and hh3cStormCtrlMulticastLower.
I32 hh3cStormCtrlMulticastUpper	1.3.6.1.4.1.25506.2.66.2.1.1.6	Integer32	read-create	The upper-limit of incoming multicast taffic at a port within 1 second interval. Its unit depends on hh3cStormCtrlMulticastUnit value.
I32 hh3cStormCtrlMulticastLower	1.3.6.1.4.1.25506.2.66.2.1.1.7	Integer32	read-create	The lower-limit of incoming multicast taffic at a port within 1 second interval. This value must be lower than hh3cStormCtrlMulticastUpper value. Its unit depends on hh3cStormCtrlMulticastUnit value.
HH3 hh3cStormCtrlUnicastUnit	1.3.6.1.4.1.25506.2.66.2.1.1.8	Hh3cStormConstrainUnit	read-create	The unit of the unicast flux. This value must be set together with hh3cStormCtrlUnicastUpper and hh3cStormCtrlUnicastLower.
I32 hh3cStormCtrlUnicastUpper	1.3.6.1.4.1.25506.2.66.2.1.1.9	Integer32	read-create	The upper-limit of incoming unicast taffic at a port within 1 second interval. Its unit depends on hh3cStormCtrlUnicastUnit value.
I32 hh3cStormCtrlUnicastLower	1.3.6.1.4.1.25506.2.66.2.1.1.10	Integer32	read-create	The lower-limit of incoming unicast taffic at a port within 1 second interval. This value must be lower than hh3cStormCtrlUnicastUpper value. Its unit depends on hh3cStormCtrlUnicastUnit value.
ROW hh3cStormCtrlRowStatus	1.3.6.1.4.1.25506.2.66.2.1.1.11	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 hh3cStormCtrlPortMode	1.3.6.1.4.1.25506.2.66.2.1.1.12	INTEGER	read-create	The storm control mode of the port.
hh3cStormNotifications	1.3.6.1.4.1.25506.2.66.3
NTF hh3cStormRising	1.3.6.1.4.1.25506.2.66.3.1			This trap message is generated when any type of the flux exceeds its upper limit on a port.
NTF hh3cStormFalling	1.3.6.1.4.1.25506.2.66.3.2			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

H3C broadcast/multicast storm control limiting packet floods on switch ports.

Start monitoring H3C LAN switch (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 HH3C-STORM-CONSTRAIN-MIB

What Is HH3C-STORM-CONSTRAIN-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description