HH3C-ISDN-MIB

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Organization: Hangzhou H3C Technologies Co., Ltd.

Last Updated: 2001-12-20

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

Description: Manages ISDN BRI/PRI interface configuration and call statistics on H3C voice and WAN gateway modules.

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What Is HH3C-ISDN-MIB?

HH3C-ISDN-MIB is a vendor-specific module from H3C (Hangzhou Huawei-3Com/New H3C) covering ISDN BRI and PRI interfaces on H3C voice gateways and WAN routers. It exposes configuration data for ISDN interface parameters (switch type, channel allocation, D-channel signaling) alongside operational call statistics for the B-channels carried on those interfaces. It is used to monitor the hardware and software status of ISDN line cards and trunks, such as channel state (active/idle/failed), call setup/teardown activity, and interface availability, which together indicate whether a digital telephony or backup WAN link is healthy. It is layered on top of standard interface indexing from IF-MIB and typically complements IETF DS1/DS3 and ISDN-related MIBs (e.g., RFC 2127) rather than replacing them. Typical deployment is on H3C multiservice routers and voice gateway modules that terminate ISDN BRI/PRI circuits from a telco for legacy telephony trunks or ISDN-based backup connectivity. Engineers can download the HH3C-ISDN-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in HH3C-ISDN-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
H3C WAN router with ISDN interface

Monitoring Examples

The source excerpt provided contains no sample object names, so specific OIDs cannot be cited here; conceptually an administrator would poll per-interface ISDN channel status (indexed by ifIndex) and active call counters to confirm all B-channels on a PRI trunk are in service. A channel repeatedly reported as failed or a call-attempt counter that never increments would flag a D-channel signaling fault or a physical line problem needing carrier escalation.

What Can Be Monitored

ISDN channel operational state
active call count
B-channel/D-channel status
call setup failures

Imported Objects

From HH3C-OID-MIB

hh3cmlsr

OBJECT-IDENTITY

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

From SNMPv2-TC

DateAndTime
DisplayString
RowStatus
TimeStamp

How to Use in IPNetwork Monitor

Example using hh3cChanbIsdnCallAccept OID:

Select an H3C voice gateway/WAN router with ISDN BRI/PRI interface 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 hh3cChanbIsdnCallAccept 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. This object is used to describe the accepted call number from the B channels. 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 Counter32-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
hh3cIsdnMib	1.3.6.1.4.1.25506.8.36.9			This file describes the H3C MIB implementation of ISDN
hh3cIsdnMibObjects	1.3.6.1.4.1.25506.8.36.9.1
hh3cisdnChannelB	1.3.6.1.4.1.25506.8.36.9.1.1
hh3cChanbIsdnTable	1.3.6.1.4.1.25506.8.36.9.1.1.1		not-accessible	This table is used to describe the router's B Channels infomation
hh3cChanbIsdnEntry	1.3.6.1.4.1.25506.8.36.9.1.1.1.1		not-accessible	A single B channels
INT hh3cChanbIsdnIf	1.3.6.1.4.1.25506.8.36.9.1.1.1.1.1	INTEGER	read-only	this object is used to describe the virtual interface value associated with one neighbor.
INT hh3cChanbIsdnPermit	1.3.6.1.4.1.25506.8.36.9.1.1.1.1.2	INTEGER	read-only	this object is used to describe the call permissions.
STR hh3cChanbIsdnAddr	1.3.6.1.4.1.25506.8.36.9.1.1.1.1.3	DisplayString	read-only	this object is used to descirbe the call address by which we call one nieghbor.
STR hh3cChanbIsdnCallerAddr	1.3.6.1.4.1.25506.8.36.9.1.1.1.1.4	DisplayString	read-only	this object is used to describe the callser address which will be known by B channels.
INT hh3cChanbIsdnCallType	1.3.6.1.4.1.25506.8.36.9.1.1.1.1.5	INTEGER	read-only	this object is used to describe that whether it is an incoming call or an outging call.
INT hh3cChanbIsdnInfoType	1.3.6.1.4.1.25506.8.36.9.1.1.1.1.6	INTEGER	read-only	this object is used to describe the information type on the call
INT hh3cChanbIsdnState	1.3.6.1.4.1.25506.8.36.9.1.1.1.1.7	INTEGER	read-only	this object is used to manage the call by NMS
STR hh3cChanbIsdnCallFreeReason	1.3.6.1.4.1.25506.8.36.9.1.1.1.1.8	DisplayString	read-only	this object is used to describe the reason why last call is cleard
INT hh3cChanbIsdnCallFreeCode	1.3.6.1.4.1.25506.8.36.9.1.1.1.1.9	INTEGER	read-only	this object is used to describe the reason code for the last call down.
C32 hh3cChanbIsdnCallAcceptEx	1.3.6.1.4.1.25506.8.36.9.1.1.1.1.10	Counter32	read-only	this object is used to describe the accepted call number from the B channels
C32 hh3cChanbIsdnCallReject	1.3.6.1.4.1.25506.8.36.9.1.1.1.1.11	Counter32	read-only	this object is used to describe the refused call number from B channels .
C32 hh3cChanbIsdnCallSuccess	1.3.6.1.4.1.25506.8.36.9.1.1.1.1.12	Counter32	read-only	this object is used to describe the successful call number to B channels after system restart.
C32 hh3cChanbIsdnCallFailure	1.3.6.1.4.1.25506.8.36.9.1.1.1.1.13	Counter32	read-only	this object is used to describe the failing call number to B channels after system restart
I32 hh3cChanbIsdnMaxKeepTime	1.3.6.1.4.1.25506.8.36.9.1.1.1.1.14	Integer32	read-only	This object is used to descirbe the maximum duration time in milliseconds.
I32 hh3cChanbIsdnLastKeepTime	1.3.6.1.4.1.25506.8.36.9.1.1.1.1.15	Integer32	read-only	this object is used to describe the last call duration time in milliseconds
TIM hh3cChanbIsdnLastCallTime	1.3.6.1.4.1.25506.8.36.9.1.1.1.1.16	TimeStamp	read-only	this object is used to describe the sysUpTime after last call attempt was made.
INT hh3cChanbTrapEnable	1.3.6.1.4.1.25506.8.36.9.1.1.2	INTEGER	read-write	This object is used to control sending trap
hh3cisdnQ931	1.3.6.1.4.1.25506.8.36.9.1.2
hh3cQ931IsdnControl	1.3.6.1.4.1.25506.8.36.9.1.2.1
INT hh3cQ931CallSetupTrapEnable	1.3.6.1.4.1.25506.8.36.9.1.2.1.1	INTEGER	read-write	This object is used to control sending callsetup trap.
INT hh3cQ931CallClearTrapEnable	1.3.6.1.4.1.25506.8.36.9.1.2.1.2	INTEGER	read-write	This object is used to control sending callclear trap
hh3cQ931IsdnTable	1.3.6.1.4.1.25506.8.36.9.1.2.2		not-accessible	This table describes B channel information for the use of Q931
hh3cQ931IsdnEntry	1.3.6.1.4.1.25506.8.36.9.1.2.2.1		not-accessible	A B channel entry in the Q931.
I32 hh3cQ931IsdnOpIndex	1.3.6.1.4.1.25506.8.36.9.1.2.2.1.1	Integer32	accessible-for-notify	Index of the B ISDN channel interface managed by Q93
STR hh3cQ931IsdnLastCalled	1.3.6.1.4.1.25506.8.36.9.1.2.2.1.2	DisplayString	read-only	This object describes the called ISDN number. When an outgoing call is established successfully, the value of this node is the call number of this device, otherwise the value is null string
STR hh3cQ931IsdnLastCalling	1.3.6.1.4.1.25506.8.36.9.1.2.2.1.3	DisplayString	read-only	This object describes the calling ISDN number. When an incoming call is established successfully, the value of this node is the call number of peer device, otherwise the value is null string.
INT hh3cQ931IsdnLastCauseDisc	1.3.6.1.4.1.25506.8.36.9.1.2.2.1.4	INTEGER	read-only	This object describes last cause of disconnection. In hh3cQ931IsdnCallClear trap, the value of this node is the reason of disconnection, this node is only valid for hh3cQ931IsdnCallClear trap, the value of this node is unknown in other situation. unknown: unknown error. normCallClr: normal call clearing. noRouteToTransNet: no route to specified transit network. noRouteToDest: no route to destination. switchEquCongest: switching equipment congestion. netOutofOrder: network out of order.
INT hh3cQ931IsdnCallDirection	1.3.6.1.4.1.25506.8.36.9.1.2.2.1.5	INTEGER	read-only	This object describes the direction of the current call.
DAT hh3cQ931IsdnCallTimeOpen	1.3.6.1.4.1.25506.8.36.9.1.2.2.1.6	DateAndTime	read-only	This object describes the start time of this call. start time is the time of an existent call that has just been established.
DAT hh3cQ931IsdnCallTimeClose	1.3.6.1.4.1.25506.8.36.9.1.2.2.1.7	DateAndTime	read-only	This object describes the close time of this call. This node is only vaild for hh3cQ931IsdnCallClear trap. In other situation the value of this node is zero. In hh3cQ931IsdnCallClear trap, this node provides the time of an existent call that the call has just been cleared.
hh3cIsdnLapd	1.3.6.1.4.1.25506.8.36.9.1.3
hh3cLapdIsdnTable	1.3.6.1.4.1.25506.8.36.9.1.3.1		not-accessible	This table is used to describe the config of ISDN D channel.
hh3cLapdIsdnEntry	1.3.6.1.4.1.25506.8.36.9.1.3.1.1		not-accessible	ISDN D channel config
I32 hh3cLapdIsdnIf	1.3.6.1.4.1.25506.8.36.9.1.3.1.1.1	Integer32	accessible-for-notify	This object is used to describe the D channel interface value associated with one neighbor.
INT hh3cLapdIsdnProtocol	1.3.6.1.4.1.25506.8.36.9.1.3.1.1.2	INTEGER	read-write	This object is used to describe the protocol D channel applied. For E1, the protocol may be dss1, qsig, etsi. For T1, the protocol may be ess5, ansi, att, dss1, etsi, ni2, ntt, qsig. For BRI, the protocol may be ansi, dss1, etsi, ni, ntt.
INT hh3cLapdIsdnIfMode	1.3.6.1.4.1.25506.8.36.9.1.3.1.1.3	INTEGER	read-write	The physical interface mode. For TE mode, the value of this object is userSide. For NT mode, the value of this object is networkSide.
INT hh3cLapdIsdnLinkStatus	1.3.6.1.4.1.25506.8.36.9.1.3.1.1.4	INTEGER	read-only	The operational status of this interface: inactive all layers are inactive. l1Active layer 1 is activated, layer 2 datalink not established. l2Active layer 1 is activated, layer 2 datalink established.
hh3cLapdIsdnControl	1.3.6.1.4.1.25506.8.36.9.1.3.2
INT hh3cLapdStatusTrapEnable	1.3.6.1.4.1.25506.8.36.9.1.3.2.1	INTEGER	read-write	This object is used to control sending hh3cLapdIsdnStatusChange trap.
hh3cIsdnMibTraps	1.3.6.1.4.1.25506.8.36.9.2
NTF hh3cChanbIsdnCall	1.3.6.1.4.1.25506.8.36.9.2.1			When one call is setup ,cleard or determined , the trap is sent to NMS
NTF hh3cQ931IsdnCallSetup	1.3.6.1.4.1.25506.8.36.9.2.2			This trap/inform is sent to the manager whenever a call is established successfully.
NTF hh3cQ931IsdnCallClear	1.3.6.1.4.1.25506.8.36.9.2.3			This trap/inform is sent to the manager under the following conditions: - an existent call is normally cleared. - an existent call is determined to have ultimately failed, and has been cleared. - the existent call is cleared when the BRI/PRI port is down. - the existent call is cleared when the dialer rule is down.
NTF hh3cLapdIsdnStatusChange	1.3.6.1.4.1.25506.8.36.9.2.4			This trap/inform is sent to the manager whenever the D-channel of an interface changes state.

RFC description

ISDN management including B-channel configuration, Q.931 call setup, and LAPD protocol monitoring.

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Download HH3C-ISDN-MIB