HH3C-DSP-MIB

All MIBs › HH3C-DSP-MIB

Organization: Hangzhou H3C Technologies Co., Ltd.

Last Updated: 2008-01-16

Category: Domain: Telephony/VoIP, Hardware and Environment, Vendor: H3C/HH3C

Description: Manages Digital Signal Processor (DSP) resources and voice channel capacity on H3C voice gateway modules.

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What Is HH3C-DSP-MIB?

HH3C-DSP-MIB is a vendor-specific H3C MIB for managing Digital Signal Processor (DSP) resources and the VPM (Voice Processing Module) hardware that hosts them on H3C voice gateway modules, tracking voice-channel capacity used for call processing. It exposes VPM state and resource-utilization metrics, high-water utilization marks, maximum channel capacity, and a per-DSP status table linking individual DSPs back to their parent VPM. This MIB is explicitly used to monitor hardware resource status, specifically how heavily the DSP/VPM voice-processing hardware is loaded relative to its maximum channel capacity, which directly predicts when new calls will be rejected due to exhausted transcoding/voice resources. It is a private H3C MIB, part of the same voice-gateway family as H3C-MS-MAN-MIB, with no stated dependency on IETF voice MIBs. It is typically deployed on H3C voice gateways and integrated access devices handling PSTN/VoIP call processing in unified-communications deployments. Engineers can download the HH3C-DSP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in HH3C-DSP-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 voice gateways
H3C integrated access devices

Monitoring Examples

An administrator would poll hh3cVPMStatusTable/hh3cVPMStatusEntry, indexed by hh3cVPMIndex, to check hh3cVPMState and hh3cVPMResourceUtilization against hh3cVPMMaxChannel, revealing what fraction of voice-channel capacity is currently in use on a given voice processing module. The hh3cVPMHiWaterUtilization object records the peak utilization seen, useful for capacity-planning during busy-hour analysis. The hh3cDSPStatusTable/hh3cDSPStatusEntry, linked via hh3cDSPVPMIndex back to its parent VPM, lets an operator drill down to individual DSP chip health when a VPM shows degraded state. A VPM utilization consistently near hh3cVPMMaxChannel would predict imminent call-setup failures due to exhausted voice-processing resources.

What Can Be Monitored

VPM/DSP operational state
voice channel resource utilization
high-water utilization mark
maximum channel capacity

Imported Objects

From ENTITY-MIB

PhysicalIndex

From HH3C-OID-MIB

hh3cCommon

OBJECT-IDENTITY

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
TimeTicks

How to Use in IPNetwork Monitor

Example using hh3cVPMState OID:

Select an H3C voice gateway or access device 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 hh3cVPMState 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. The current state of the VPM card being monitored — normal, warning, fatal, or off-line. 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 an INTEGER-type OID, Value bounds is the most useful condition here — trigger an alert if the value is anything other than 'normal', since that indicates the condition this object reports has changed to one worth investigating. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
hh3cDSP	1.3.6.1.4.1.25506.2.89			This MIB is to provide the definition of the DSP(Digital Signal Processing) status.
hh3cVPMStatusTable	1.3.6.1.4.1.25506.2.89.1		not-accessible	The table contains status parameters of VPM(Voice Process Module) card.
hh3cVPMStatusEntry	1.3.6.1.4.1.25506.2.89.1.1		not-accessible	The entry of VPM status table.
I32 hh3cVPMIndex	1.3.6.1.4.1.25506.2.89.1.1.1	Integer32	accessible-for-notify	The index for this entry. The sequence of VPM card in the chassis is from the top to bottom.
PHY hh3cVPMEnPhysicalIndex	1.3.6.1.4.1.25506.2.89.1.1.2	PhysicalIndex	read-only	The object corresponds to PhysicalIndex in the chassis.
INT hh3cVPMStateEx	1.3.6.1.4.1.25506.2.89.1.1.3	INTEGER	read-only	The object indicates the current state of VPM card being monitored. normal(1) - VPM card in normal condition. warning(2) - VPM card has some problem and need attention. fatal(3) - VPM card is not functional. offLine(4) - VPM card is in off-line maintenance state.
I32 hh3cVPMResourceUtilization	1.3.6.1.4.1.25506.2.89.1.1.4	Integer32	read-only	The object indicates the percentage of current DSP resource utilization of the VPM card. The utilization is a ratio of number of busy DSP resources (for handling calls, transcoding, voice compression,...) to the total available DSP resources.
I32 hh3cVPMHiWaterUtilization	1.3.6.1.4.1.25506.2.89.1.1.5	Integer32	read-only	The object indicates the highest percentage of DSP resource utilization of the VPM card that have been occured.
I32 hh3cVPMMaxChannel	1.3.6.1.4.1.25506.2.89.1.1.6	Integer32	read-only	The maximum number of channels can be supported in each VPM card.
hh3cDSPStatusTable	1.3.6.1.4.1.25506.2.89.2		not-accessible	The table contains status parameters of DSP(Digital Signal Processing) card.
hh3cDSPStatusEntry	1.3.6.1.4.1.25506.2.89.2.1		not-accessible	The entry of DSP status table.
I32 hh3cDSPIndex	1.3.6.1.4.1.25506.2.89.2.1.1	Integer32	accessible-for-notify	The index for this entry. DSP is fixed on VPM card or chassis card. The sequence of DSP in the VPM card or chassis card is from right to left.
I32 hh3cDSPVPMIndex	1.3.6.1.4.1.25506.2.89.2.1.2	Integer32	read-only	The object corresponds to VPMIndex in the chassis. If value of this object is non-zero, it is the index of VPM card.(DSP is in this VPM card.) If value of this object is 0, then the DSP is fixed in the chassis card.
PHY hh3cDSPEnPhysicalIndex	1.3.6.1.4.1.25506.2.89.2.1.3	PhysicalIndex	read-only	The object corresponds to PhysicalIndex in the chassis.
TIK hh3cDSPResetTime	1.3.6.1.4.1.25506.2.89.2.1.4	TimeTicks	read-only	The value of sysUpTime from the last DSP reset occurred.
I32 hh3cDSPMaxChannel	1.3.6.1.4.1.25506.2.89.2.1.5	Integer32	read-only	The maximum number of channels can be supported in each DSP. The value is chosen in an implementation-dependent manner by the DSP functionality.
INT hh3cDSPState	1.3.6.1.4.1.25506.2.89.2.1.6	INTEGER	read-only	The object indicates the current state of DSP being monitored. normal(1) - DSP in normal condition. fatal(3) - DSP is not functional. offLine(4) - DSP is in off-line maintenance state.
I32 hh3cDSPInUseChannel	1.3.6.1.4.1.25506.2.89.2.1.7	Integer32	read-only	The number of channels that are reserved for serving calls. The value is incremented when the DSP channel is reserved for call setup and is decremented after the DSP channel is free due to call disconnection.
hh3cDSPTrap	1.3.6.1.4.1.25506.2.89.3
hh3cDSPTrapPrex	1.3.6.1.4.1.25506.2.89.3.0
NTF hh3cVPMStateChange	1.3.6.1.4.1.25506.2.89.3.0.1			This trap is sent when VPM state changes.
NTF hh3cDSPStateChange	1.3.6.1.4.1.25506.2.89.3.0.2			This trap is sent when DSP state changes.

RFC description

H3C Digital Signal Processing (DSP) status MIB for monitoring Voice Processing Module (VPM) card resource utilization.

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Download HH3C-DSP-MIB