H3C-DSP-MIB

All MIBs › H3C-DSP-MIB

Organization: Hangzhou H3C Technologies Co., Ltd.

Last Updated: 2008-01-16

Category: Domain: VoIP/Telephony, Vendor: H3C/HH3C

Description: H3C MIB for Digital Signal Processor (DSP) resource management in voice gateways monitoring DSP utilization.

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What Is H3C-DSP-MIB?

H3C-DSP-MIB is a vendor-specific H3C MIB that models the status of Digital Signal Processor (DSP) resources on voice gateway hardware, specifically Voice Process Module (VPM) cards and the individual DSPs mounted on them. The h3cVPMStatusTable reports per-VPM-card state (normal/warning/fatal/offline), current and historical high-water DSP resource utilization, and maximum supported channels, while the h3cDSPStatusTable reports per-DSP state, reset time, and channel usage (h3cDSPMaxChannel, h3cDSPInUseChannel). Two notifications, h3cVPMStateChange and h3cDSPStateChange, alert when a card or chip transitions state so operators don't have to poll continuously. Monitoring this MIB is important for voice gateway capacity planning and fault detection, since DSP resources handle call transcoding and voice compression, so exhausted or failed DSP capacity directly causes call setup failures or degraded voice quality. It's deployed on H3C voice gateway platforms with VPM cards, and administrators can download the H3C-DSP-MIB file to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in H3C-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 gateway platforms with Voice Process Module (VPM) cards

Monitoring Examples

An operator polls h3cVPMStatusTable for h3cVPMResourceUtilization approaching h3cVPMHiWaterUtilization while h3cVPMState remains normal(1); a transition to warning(2) or fatal(3), or h3cDSPInUseChannel reaching h3cDSPMaxChannel across DSPs on that card, would indicate the gateway is running out of voice-processing capacity and new calls may be rejected.

What Can Be Monitored

VPM card operational state (normal/warning/fatal/offline)
DSP resource utilization and historical high-water mark
DSP/VPM maximum vs. in-use channel counts
per-DSP state and last reset time
VPM/DSP state-change notifications

Imported Objects

From ENTITY-MIB

PhysicalIndex

From HUAWEI-3COM-OID-MIB

h3cCommon

OBJECT-IDENTITY

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
TimeTicks

How to Use in IPNetwork Monitor

Example using h3cVPMState OID:

Select an H3C voice gateway platform (Voice Process Module/DSP resources) 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 h3cVPMState 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
h3cDSP	1.3.6.1.4.1.2011.10.2.89			This MIB is to provide the definition of the DSP(Digital Signal Processing) status.
h3cVPMStatusTable	1.3.6.1.4.1.2011.10.2.89.1		not-accessible	The table contains status parameters of VPM(Voice Process Module) card.
h3cVPMStatusEntry	1.3.6.1.4.1.2011.10.2.89.1.1		not-accessible	The entry of VPM status table.
I32 h3cVPMIndex	1.3.6.1.4.1.2011.10.2.89.1.1.1	Integer32	accessible-for-notify	The index for this entry. The sequence of VPM card in the chassis is from the top to bottom.
PHY h3cVPMEnPhysicalIndex	1.3.6.1.4.1.2011.10.2.89.1.1.2	PhysicalIndex	read-only	The object corresponds to PhysicalIndex in the chassis.
INT h3cVPMStateEx	1.3.6.1.4.1.2011.10.2.89.1.1.3	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 h3cVPMResourceUtilization	1.3.6.1.4.1.2011.10.2.89.1.1.4	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 h3cVPMHiWaterUtilization	1.3.6.1.4.1.2011.10.2.89.1.1.5	Integer32	read-only	The object indicates the highest percentage of DSP resource utilization of the VPM card that have been occured.
I32 h3cVPMMaxChannel	1.3.6.1.4.1.2011.10.2.89.1.1.6	Integer32	read-only	The maximum number of channels can be supported in each VPM card.
h3cDSPStatusTable	1.3.6.1.4.1.2011.10.2.89.2		not-accessible	The table contains status parameters of DSP(Digital Signal Processing) card.
h3cDSPStatusEntry	1.3.6.1.4.1.2011.10.2.89.2.1		not-accessible	The entry of DSP status table.
I32 h3cDSPIndex	1.3.6.1.4.1.2011.10.2.89.2.1.1	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 h3cDSPVPMIndex	1.3.6.1.4.1.2011.10.2.89.2.1.2	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 h3cDSPEnPhysicalIndex	1.3.6.1.4.1.2011.10.2.89.2.1.3	PhysicalIndex	read-only	The object corresponds to PhysicalIndex in the chassis.
TIK h3cDSPResetTime	1.3.6.1.4.1.2011.10.2.89.2.1.4	TimeTicks	read-only	The value of sysUpTime from the last DSP reset occurred.
I32 h3cDSPMaxChannel	1.3.6.1.4.1.2011.10.2.89.2.1.5	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 h3cDSPState	1.3.6.1.4.1.2011.10.2.89.2.1.6	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 h3cDSPInUseChannel	1.3.6.1.4.1.2011.10.2.89.2.1.7	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.
h3cDSPTrap	1.3.6.1.4.1.2011.10.2.89.3
h3cDSPTrapPrex	1.3.6.1.4.1.2011.10.2.89.3.0
NTF h3cVPMStateChange	1.3.6.1.4.1.2011.10.2.89.3.0.1			This trap is sent when VPM state changes.
NTF h3cDSPStateChange	1.3.6.1.4.1.2011.10.2.89.3.0.2			This trap is sent when DSP state changes.

RFC description

H3C Digital Signal Processing (DSP) MIB for monitoring VPM voice process module status and resource utilization on voice cards.

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Download H3C-DSP-MIB