HUAWEI-TDM-PSN-MIB

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Organization: Huawei Technologies Co., Ltd.

Last Updated: 2007-06-27

Category: Domain: WAN/TDM, Pseudowire, Vendor: Huawei

Description: Huawei TDM-PSN (TDM over Packet-Switched Network) MIB for managing TDM circuit emulation over IP/MPLS networks.

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What Is HUAWEI-TDM-PSN-MIB?

HUAWEI-TDM-PSN-MIB is Huawei's proprietary MIB for TDM-over-PSN (circuit emulation) functionality, used to manage the transport of traditional TDM (e.g., E1/T1) circuits across a packet-switched (IP/MPLS) network on Huawei transport/access equipment. Per its brief module description it contains objects to manage TDM, which in circuit-emulation contexts typically means configuring the pseudowire/circuit parameters that map a TDM circuit onto a packet path. Its monitoring emphasis, typical of circuit-emulation MIBs, would be on service/software status - detecting whether a given TDM pseudowire circuit is up or down, and performance indicators like jitter-buffer underruns or packet loss that would manifest as TDM signal degradation - though no sample objects were available here to confirm exact object names. It would inherently depend on underlying packet transport MIBs (such as pseudowire/PWE3-related MIBs) for the packet-switched leg of the emulated circuit, since TDM-PSN is fundamentally an interworking technology. It would be deployed in Huawei-based transport networks where legacy TDM traffic (e.g., from PBX or legacy telecom equipment) needs to be carried across a modern IP/MPLS packet core. Engineers can download the HUAWEI-TDM-PSN-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in HUAWEI-TDM-PSN-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

Huawei transport/access equipment (TDM-over-PSN capable)

Monitoring Examples

No sample object names were provided for this module, so a concrete real-object monitoring scenario cannot be given honestly here. Based on the general nature of TDM-over-PSN circuit emulation, an operator would typically be expected to check a TDM pseudowire's operational status and packet-loss/jitter-buffer statistics to detect degraded voice/data quality on a circuit carried across the packet core, but the specific object names for this module are unknown.

What Can Be Monitored

TDM pseudowire circuit status
jitter buffer/packet loss indicators
TDM circuit configuration

Imported Objects

From HUAWEI-MIB

hwDatacomm

OBJECT-IDENTITY

From HUAWEI-VPLS-EXT-MIB

HWL2VpnVcEncapsType

From IF-MIB

InterfaceIndex

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter64
Gauge32
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

How to Use in IPNetwork Monitor

Example using hwTdmPsnPerfCurrentMissingPkts OID:

Select a Huawei transport/access equipment, TDM-over-PSN capable 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 hwTdmPsnPerfCurrentMissingPkts 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. It reports the number of missing packets (as detected via control word Sequence number gaps). 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 Gauge32-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
hwTdmPsnMIB	1.3.6.1.4.1.2011.5.25.152			The HUAWEI-TDM-PSN-MIB contains objects to manage TDM.
hwTdmPsnMIBObjects	1.3.6.1.4.1.2011.5.25.152.1
hwTdmPsnPerfCurrentTable	1.3.6.1.4.1.2011.5.25.152.1.1		not-accessible	This table provides per TDM PW performance information.
hwTdmPsnPerfCurrentEntry	1.3.6.1.4.1.2011.5.25.152.1.1.1		not-accessible	An entry in hwTdmPsnPerfCurrentTable.
U32 hwTdmPsnPerfCurrentPwIdIndex	1.3.6.1.4.1.2011.5.25.152.1.1.1.1	Unsigned32	not-accessible	Index for the conceptual row identifying a PW within this PW Emulation table.Used in the outgoing PW ID field within the 'Virtual Circuit FEC Element'.
HWL hwTdmPsnPerfCurrentPwTypeIndex	1.3.6.1.4.1.2011.5.25.152.1.1.1.2	HWL2VpnVcEncapsType	not-accessible	The type of the Virtual Circuit.This value indicate the Service to be carried over this PW.
G32 hwTdmPsnPerfCurrentMissingPktsEx	1.3.6.1.4.1.2011.5.25.152.1.1.1.3	Gauge32	read-only	Number of missing packets (as detected via control word Sequence number gaps).
G32 hwTdmPsnPerfCurrentPktsReorder	1.3.6.1.4.1.2011.5.25.152.1.1.1.4	Gauge32	read-only	Number of packets detected out of sequence (via control word sequence number), but successfully re-ordered. Note: some implementations may not support this Feature.
G32 hwTdmPsnPerfCurrentJtrBfrUnderruns	1.3.6.1.4.1.2011.5.25.152.1.1.1.5	Gauge32	read-only	Number of times a packet needed to be played out and the jitter buffer was empty.
G32 hwTdmPsnPerfCurrentMisorderDropped	1.3.6.1.4.1.2011.5.25.152.1.1.1.6	Gauge32	read-only	Number of packets detected out of order(via control word Sequence numbers), and could not be re-ordered, or could not fit in the jitter buffer.
G32 hwTdmPsnPerfCurrentMalformedPkts	1.3.6.1.4.1.2011.5.25.152.1.1.1.7	Gauge32	read-only	Number of packets detected with unexpected size, or bad headers' stack.
G32 hwTdmPsnPerfCurrentErrorSeconds	1.3.6.1.4.1.2011.5.25.152.1.1.1.8	Gauge32	read-only	The counter associated with the number of Error Seconds encountered.Any malformed packet, seq. error and similar are considered as error second.
G32 hwTdmPsnPerfCurrentSeverelyErrorSeconds	1.3.6.1.4.1.2011.5.25.152.1.1.1.9	Gauge32	read-only	The counter associated with the number of Severely Error Seconds encountered.
G32 hwTdmPsnPerfCurrentUnavailableSeconds	1.3.6.1.4.1.2011.5.25.152.1.1.1.10	Gauge32	read-only	The counter associated with the number of Unavailable Seconds encountered. Any consequtive five seconds of SES are counted as one UAS.
G32 hwTdmPsnPerfCurrentFailureCounts	1.3.6.1.4.1.2011.5.25.152.1.1.1.11	Gauge32	read-only	TDM Failure Counts (FC-TDM). The number of TDM failure events. A failure event begins when the LOPS failure is declared, and ends when the failure is cleared. A failure event that begins in one period and ends in another period is counted only in the period in which it begins.
hwTdmPsnAlarmTable	1.3.6.1.4.1.2011.5.25.152.1.2		not-accessible	This table provides per CEP PW Status information.
hwTdmPsnAlarmEntry	1.3.6.1.4.1.2011.5.25.152.1.2.1		not-accessible	An entry in hwTdmPsnAlarmTable.
U32 hwTdmPsnAlarmPwIdIndex	1.3.6.1.4.1.2011.5.25.152.1.2.1.1	Unsigned32	not-accessible	Index for the conceptual row identifying a PW within this PW Emulation table.Used in the outgoing PW ID field within the 'Virtual Circuit FEC Element'.
HWL hwTdmPsnAlarmPwTypeIndex	1.3.6.1.4.1.2011.5.25.152.1.2.1.2	HWL2VpnVcEncapsType	not-accessible	The type of the Virtual Circuit.This value indicate the Service to be carried over this PW.
INT hwTdmPsnAlarmPwStatus	1.3.6.1.4.1.2011.5.25.152.1.2.1.3	INTEGER	read-only	This variable indicates the Line Status of the interface. It contains PW alarms information. The hwTdmPsnInfoPwStatus is a bit map represented as a Sum, therefore, it can represent multiple alarms simultaneously. PwNoAlarm must be set if and only if no other flag is set. The various bit positions are: 0 bit PwNoAlarm No alarm present 1 bit PwRAI Remote Alarm Indication 2 bit PwAIS Alarm Indication Signal
NUM hwTdmPsnAlarmVcIfIndex	1.3.6.1.4.1.2011.5.25.152.1.2.1.4	InterfaceIndex	read-only	Index of E1 or T1 interface.
hwTdmPsnMIBTraps	1.3.6.1.4.1.2011.5.25.152.2
NTF hwTdmPsnAlarmTrap	1.3.6.1.4.1.2011.5.25.152.2.1			A hwTdmPsnAlarmTrap trap is sent when the value of an instance hwTdmPsnAlarmPwStatus changes.
hwTdmPsnMIBConformance	1.3.6.1.4.1.2011.5.25.152.3
hwTdmPsnMIBCompliances	1.3.6.1.4.1.2011.5.25.152.3.1
hwTdmPsnMIBCompliance	1.3.6.1.4.1.2011.5.25.152.3.1.1			The compliance statement for TDM.
hwTdmPsnMIBGroups	1.3.6.1.4.1.2011.5.25.152.3.2
hwTdmPsnPerfCurrentGroup	1.3.6.1.4.1.2011.5.25.152.3.2.1			The hwTdmPsnPerfCurrentTable's group.
hwTdmPsnAlarmGroup	1.3.6.1.4.1.2011.5.25.152.3.2.2			The hwTdmPsnAlarmTable's group.
hwTdmPsnNotificationGroup	1.3.6.1.4.1.2011.5.25.152.3.2.3			The TdmPsn's SVC Notification group.

RFC description

Huawei vendor-private MIB for TDM (Time Division Multiplexing) over PSN (Packet Switched Network) management; handles circuit emulation and pseudo-wire provisioning.

Start monitoring Huawei transport/access equipment, TDM-over-PSN capable 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 HUAWEI-TDM-PSN-MIB