TIMETRA-TWAMP-MIB

All MIBs › TIMETRA-TWAMP-MIB

Organization: Alcatel-Lucent

Last Updated: 2011-02-01

Category: Nokia SR OS / Alcatel-Lucent 7750 SR, Testing and Diagnostics

Description: Manages Nokia/Alcatel-Lucent 7750 SR TWAMP test session configuration and measurement results.

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What Is TIMETRA-TWAMP-MIB?

This is a Nokia/Alcatel-Lucent (Timetra/SROS) MIB module for managing and monitoring TWAMP (Two-Way Active Measurement Protocol, RFC 5357) test sessions on 7750 SR and related Alcatel-Lucent SROS routers. It exposes TWAMP server configuration objects such as administrative state, inactivity timeout, and maximum connections/sessions, plus a table of allowed client-address prefixes with their own row status and last-changed timestamps, supporting active network performance measurement rather than passive counters. It is used to monitor the software-level operational status of the TWAMP measurement service, including whether the server is administratively enabled and how close current usage is to configured connection/session limits, a direct software-health and capacity indicator for the measurement feature. It explicitly implements and depends on the IETF TWAMP standard (RFC 5357). It is deployed on Alcatel-Lucent/Nokia 7750 SR service routers used for active latency/loss measurement between network endpoints, monitored by service providers verifying SLA compliance. Engineers can download the TIMETRA-TWAMP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in TIMETRA-TWAMP-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

Nokia/Alcatel-Lucent 7750 SR service router (SROS)

Monitoring Examples

An operator checks tmnxTwampSrvAdminState to confirm the TWAMP server is enabled, and compares current usage against tmnxTwampSrvMaxConnections and tmnxTwampSrvMaxSessions to see whether the router is near its measurement-session capacity. The tmnxTwampSrvPrefixTable/tmnxTwampSrvPrefixEntry rows, keyed by tmnxTwampSrvPrefixAddrType/tmnxTwampSrvPrefixAddr/tmnxTwampSrvPrefixLen, show which client address ranges are permitted to originate TWAMP sessions, with tmnxTwampSrvPrefixRowStatus and tmnxTwampSrvPrefixLastChg used to audit recent provisioning changes; tmnxTwampSrvInactTimeout governs how quickly idle sessions are torn down.

What Can Be Monitored

TWAMP server admin state
active connections/sessions vs. maximum
inactivity timeout
allowed client address prefixes
prefix provisioning changes

Imported Objects

From INET-ADDRESS-MIB

InetAddress
InetAddressPrefixLength
InetAddressType

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

RowStatus
TEXTUAL-CONVENTION
TimeStamp

From TIMETRA-GLOBAL-MIB

timetraSRMIBModules	OBJECT-IDENTITY
tmnxSRConfs	OBJECT-IDENTITY
tmnxSRNotifyPrefix	OBJECT-IDENTITY
tmnxSRObjs	OBJECT-IDENTITY

From TIMETRA-TC-MIB

TItemDescription
TmnxAdminState
TmnxOperState

How to Use in IPNetwork Monitor

Example using tmnxTwampSrvUpTime OID:

Select a Nokia/Alcatel-Lucent 7750 SR service router (SROS) (TWAMP server admin/session-capacity status) 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 tmnxTwampSrvUpTime into the Find box to locate it in the OID tree, then select it and click OK. The value of tmnxTwampSrvUpTime indicates the time elapsed, in seconds, since the most recent transition of tmnxTwampSrvOperState to 'inService(2)'. 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 value is unexpectedly low (e.g. under 10 minutes), since that indicates a recent, possibly unplanned, reboot or restart. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
timetraTwampMIBModule	1.3.6.1.4.1.6527.1.1.3.76			This document is the SNMP MIB module to manage and provision the Two Way Active Measurement Protocol (TWAMP, RFC5357) components of Alcatel-Lucent SROS. Copyright (c) 2010-2011 Alcatel-Lucent. All rights reserved. Reproduction of this document is authorized on the condition that the foregoing copyright notice is included. This SNMP MIB module (Specification) embodies Alcatel-Lucent's proprietary intellectual property. Alcatel-Lucent retains all title and ownership in the Specification, including any revisions. Alcatel-Lucent grants all interested parties a non-exclusive license to use and distribute an unmodified copy of this Specification in connection with management of Alcatel-Lucent products, and without fee, provided this copyright notice and license appear on all copies. This Specification is supplied 'as is', and Alcatel-Lucent makes no warranty, either express or implied, as to the use, operation, condition, or performance of the Specification.
tmnxTwampConformance	1.3.6.1.4.1.6527.3.1.1.76
tmnxTwampComplianceObjs	1.3.6.1.4.1.6527.3.1.1.76.1
tmnxTwampCompliance	1.3.6.1.4.1.6527.3.1.1.76.1.1			The compliance statement for the management of TWAMP for Release 9.0 on SROS series systems.
tmnxTwampGroupObjs	1.3.6.1.4.1.6527.3.1.1.76.2
tmnxTwampV9v0GroupObjs	1.3.6.1.4.1.6527.3.1.1.76.2.1
tmnxTwampSrvV9v0Group	1.3.6.1.4.1.6527.3.1.1.76.2.1.1			The group of objects supporting management of the TWAMP server on Alcatel-Lucent SROS Release 9.0.
tmnxTwampSrvNotifyV9v0Group	1.3.6.1.4.1.6527.3.1.1.76.2.1.2			The group of notifications supporting management of the TWAMP server on Alcatel-Lucent SROS Release 9.0.
tmnxTwampSrvNotifyObjsV9v0Group	1.3.6.1.4.1.6527.3.1.1.76.2.1.3			The group of accessible-for-notify objects supporting management of the TWAMP server on Alcatel-Lucent SROS Release 9.0.
tmnxTwampObjs	1.3.6.1.4.1.6527.3.1.2.76
tmnxTwampTableLastChangeObjs	1.3.6.1.4.1.6527.3.1.2.76.1
TIM tmnxTwampSrvPrefixTblLastChg	1.3.6.1.4.1.6527.3.1.2.76.1.1	TimeStamp	read-only	The value of tmnxTwampSrvPrefixTblLastChg indicates the time, since system startup, when tmnxTwampSrvPrefixTable last changed.
tmnxTwampConfigObjs	1.3.6.1.4.1.6527.3.1.2.76.2
tmnxTwampConfigScalarObjs	1.3.6.1.4.1.6527.3.1.2.76.2.1
TMN tmnxTwampSrvAdminState	1.3.6.1.4.1.6527.3.1.2.76.2.1.1	TmnxAdminState	read-write	The value of tmnxTwampSrvAdminState specifies if the TWAMP server is administratively 'inService(2)', or 'outOfService(3)'. 'noop(1)' is a write-only value which does not change the current setting.
U32 tmnxTwampSrvInactTimeout	1.3.6.1.4.1.6527.3.1.2.76.2.1.2	Unsigned32	read-write	The value of tmnxTwampSrvInactTimeout specifies the system-wide inactivity timeout for each TWAMP server control connection.
TMN tmnxTwampSrvMaxConnections	1.3.6.1.4.1.6527.3.1.2.76.2.1.3	TmnxTwampSrvConnectionCount	read-write	The value of tmnxTwampSrvMaxConnections specifies the system-wide maximum number of concurrent TWAMP server control connections.
TMN tmnxTwampSrvMaxSessions	1.3.6.1.4.1.6527.3.1.2.76.2.1.4	TmnxTwampSrvSessionCount	read-write	The value of tmnxTwampSrvMaxSessions specifies the system-wide maximum number of concurrent TWAMP server test sesssions.
tmnxTwampConfigTableObjs	1.3.6.1.4.1.6527.3.1.2.76.2.2
tmnxTwampSrvPrefixTable	1.3.6.1.4.1.6527.3.1.2.76.2.2.1		not-accessible	tmnxTwampSrvPrefixTable contains per-prefix TWAMP server configuration information.
tmnxTwampSrvPrefixEntry	1.3.6.1.4.1.6527.3.1.2.76.2.2.1.1		not-accessible	tmnxTwampSrvPrefixEntry contains the TWAMP server configuration information for the IP prefix specified by the index values. Rows in this table are created and destroyed using the tmnxTwampSrvPrefixRowStatus object.
IPt tmnxTwampSrvPrefixAddrType	1.3.6.1.4.1.6527.3.1.2.76.2.2.1.1.1	InetAddressType	not-accessible	The value of tmnxTwampSrvPrefixAddrType specifies the type of tmnxTwampSrvPrefixAddr. This is the first index for tmnxTwampSrvPrefixTable.
IP tmnxTwampSrvPrefixAddr	1.3.6.1.4.1.6527.3.1.2.76.2.2.1.1.2	InetAddress	not-accessible	The value of tmnxTwampSrvPrefixAddr specifies, in conjuction with tmnxTwampSrvPrefixAddrType and tmnxTwampSrvPrefixLen, a prefix to be matched against a TWAMP client address. This is the second index for tmnxTwampSrvPrefixTable.
ADR tmnxTwampSrvPrefixLen	1.3.6.1.4.1.6527.3.1.2.76.2.2.1.1.3	InetAddressPrefixLength	not-accessible	The value of tmnxTwampSrvPrefixLen specifies the number of bits to match when comparing a TWAMP client address in an incoming message to tmnxTwampSrvPrefixAddr. This is the third index for tmnxTwampSrvPrefixTable. Best-fit is used when matching a TWAMP client's IP address against the set of configured prefixes. For example, suppose the first row of this table has the prefix 138.120.0.0/16, and the second row has the prefix 138.120.214.0/24. The TWAMP client address 138.120.214.52 matches the second row.
ROW tmnxTwampSrvPrefixRowStatus	1.3.6.1.4.1.6527.3.1.2.76.2.2.1.1.4	RowStatus	read-create	The value of tmnxTwampSrvPrefixRowStatus specifies the status of the row for the TWAMP prefix identified by the index values. This object controls the creation and deletion of row entries in the tmnxTwampSrvPrefixTable.
TIM tmnxTwampSrvPrefixLastChg	1.3.6.1.4.1.6527.3.1.2.76.2.2.1.1.5	TimeStamp	read-only	The value of tmnxTwampSrvPrefixLastChg indicates the time, since system startup, that this row was created or modified.
TIT tmnxTwampSrvPrefixDescription	1.3.6.1.4.1.6527.3.1.2.76.2.2.1.1.6	TItemDescription	read-create	The value of tmnxTwampSrvPrefixDescription specifies the description for the TWAMP prefix identified by the index values..
TMN tmnxTwampSrvPrefixMaxConnections	1.3.6.1.4.1.6527.3.1.2.76.2.2.1.1.7	TmnxTwampSrvConnectionCount	read-create	The value of tmnxTwampSrvPrefixMaxConnections specifies the maximum number of concurrent TWAMP control connections allowed for the TWAMP prefix identified by the index values. In addition, the number of concurrent TWAMP control connections for this prefix is limited by the system maximum (tmnxTwampSrvMaxConnections).
TMN tmnxTwampSrvPrefixMaxSessions	1.3.6.1.4.1.6527.3.1.2.76.2.2.1.1.8	TmnxTwampSrvSessionCount	read-create	The value of tmnxTwampSrvPrefixMaxSessions specifies the maximum number of concurrent TWAMP test sessions allowed for the TWAMP prefix identified by the index values. In addition, the number of concurrent TWAMP test sessions for this prefix is limited by the system maximum (tmnxTwampSrvMaxSessions).
tmnxTwampStatisticsObjs	1.3.6.1.4.1.6527.3.1.2.76.3
tmnxTwampStatisticsScalarObjs	1.3.6.1.4.1.6527.3.1.2.76.3.1
TMN tmnxTwampSrvOperState	1.3.6.1.4.1.6527.3.1.2.76.3.1.1	TmnxOperState	read-only	The value of tmnxTwampSrvOperState indicates if the TWAMP server is operationally 'inService(2)', or 'outOfService(3)'.
C32 tmnxTwampSrvUpTimeEx	1.3.6.1.4.1.6527.3.1.2.76.3.1.2	Counter32	read-only	The value of tmnxTwampSrvUpTime indicates the time elapsed, in seconds, since the most recent transition of tmnxTwampSrvOperState to 'inService(2)'. If tmnxTwampSrvOperState is not 'inService(2)', zero is returned.
TMN tmnxTwampSrvConnectionCount	1.3.6.1.4.1.6527.3.1.2.76.3.1.3	TmnxTwampSrvConnectionCount	read-only	The value of tmnxTwampSrvConnectionCount indicates the number of control connections currently managed by the TWAMP server.
C32 tmnxTwampSrvConnectionsRejected	1.3.6.1.4.1.6527.3.1.2.76.3.1.4	Counter32	read-only	The value of tmnxTwampSrvConnectionsRejected indicates the total number of control connection requests which have been rejected by the TWAMP server. Example reject reasons: the server's limit on the number of active connections has been reached; the client's IP address does not match any of the prefixes configured on the TWAMP server.
TMN tmnxTwampSrvSessionCount	1.3.6.1.4.1.6527.3.1.2.76.3.1.5	TmnxTwampSrvSessionCount	read-only	The value of tmnxTwampSrvSessionCount indicates the number of currently in-progress TWAMP test sesssions.
C32 tmnxTwampSrvTestSessCompleted	1.3.6.1.4.1.6527.3.1.2.76.3.1.6	Counter32	read-only	The value of tmnxTwampSrvTestSessCompleted indicates the total number of test sessions completed by the TWAMP server.
C32 tmnxTwampSrvTestSessRejected	1.3.6.1.4.1.6527.3.1.2.76.3.1.7	Counter32	read-only	The value of tmnxTwampSrvTestSessRejected indicates the total number of test sessions rejected by the TWAMP server.
C32 tmnxTwampSrvTestSessAborted	1.3.6.1.4.1.6527.3.1.2.76.3.1.8	Counter32	read-only	The value of tmnxTwampSrvTestSessAborted indicates the total number of test sessions aborted by the TWAMP server.
C32 tmnxTwampSrvTestPacketsRx	1.3.6.1.4.1.6527.3.1.2.76.3.1.9	Counter32	read-only	The value of tmnxTwampSrvTestPacketsRx indicates the total number of TWAMP test packets received by the TWAMP server.
C32 tmnxTwampSrvTestPacketsTx	1.3.6.1.4.1.6527.3.1.2.76.3.1.10	Counter32	read-only	The value of tmnxTwampSrvTestPacketsTx indicates the total number of TWAMP test packets sent by the TWAMP server.
tmnxTwampStatisticsTableObjs	1.3.6.1.4.1.6527.3.1.2.76.3.2
tmnxTwampSrvPrefixStatsTable	1.3.6.1.4.1.6527.3.1.2.76.3.2.1		not-accessible	tmnxTwampSrvPrefixStatsTable contains per-prefix TWAMP server statistics.
tmnxTwampSrvPrefixStatsEntry	1.3.6.1.4.1.6527.3.1.2.76.3.2.1.1		not-accessible	tmnxTwampSrvPrefixStatsEntry contains the TWAMP server statistics for the IP prefix specified by the index values.
TMN tmnxTwampSrvPfxConnCount	1.3.6.1.4.1.6527.3.1.2.76.3.2.1.1.1	TmnxTwampSrvConnectionCount	read-only	The value of tmnxTwampSrvPfxConnCount indicates, for the prefix specified by the index values, the number of control connections currently managed by the TWAMP server.
C32 tmnxTwampSrvPfxConnsRejected	1.3.6.1.4.1.6527.3.1.2.76.3.2.1.1.2	Counter32	read-only	The value of tmnxTwampSrvPfxConnsRejected indicates, for the prefix specified by the index values, the number of control connection requests which have been rejected by the TWAMP server. An example reject reason: the prefix's limit on the number of active connections has been reached.
TMN tmnxTwampSrvPfxSessionCount	1.3.6.1.4.1.6527.3.1.2.76.3.2.1.1.3	TmnxTwampSrvSessionCount	read-only	The value of tmnxTwampSrvPfxSessionCount indicates, for the prefix specified by the index values, the number of currently in-progress TWAMP test sesssions.
C32 tmnxTwampSrvPfxTestSessCompleted	1.3.6.1.4.1.6527.3.1.2.76.3.2.1.1.4	Counter32	read-only	The value of tmnxTwampSrvPfxTestSessCompleted indicates, for the prefix specified by the index values, the number of test sessions completed by the TWAMP server.
C32 tmnxTwampSrvPfxTestSessRejected	1.3.6.1.4.1.6527.3.1.2.76.3.2.1.1.5	Counter32	read-only	The value of tmnxTwampSrvPfxTestSessRejected indicates, for the prefix specified by the index values, the number of test sessions rejected by the TWAMP server.
C32 tmnxTwampSrvPfxTestSessAbort	1.3.6.1.4.1.6527.3.1.2.76.3.2.1.1.6	Counter32	read-only	The value of tmnxTwampSrvPfxTestSessAbort indicates, for the prefix specified by the index values, the number of test sessions aborted by the TWAMP server.
C32 tmnxTwampSrvPfxTestPacketsRx	1.3.6.1.4.1.6527.3.1.2.76.3.2.1.1.7	Counter32	read-only	The value of tmnxTwampSrvPfxTestPacketsRx indicates, for the prefix specified by the index values, the number of TWAMP test packets received by the TWAMP server.
C32 tmnxTwampSrvPfxTestPacketsTx	1.3.6.1.4.1.6527.3.1.2.76.3.2.1.1.8	Counter32	read-only	The value of tmnxTwampSrvPfxTestPacketsTx indicates, for the prefix specified by the index values, the number of TWAMP test packets sent by the TWAMP server.
tmnxTwampSrvConnStatsTable	1.3.6.1.4.1.6527.3.1.2.76.3.2.2		not-accessible	tmnxTwampSrvConnStatsTable contains the statistics for each active control connection managed by the TWAMP server.
tmnxTwampSrvConnStatsEntry	1.3.6.1.4.1.6527.3.1.2.76.3.2.2.1		not-accessible	tmnxTwampSrvConnStatsEntry contains the statistics for the TWAMP control connection specified by the index values. A row is created by the system when a TWAMP control connection is established.
IPt tmnxTwampSrvConnClientAddrType	1.3.6.1.4.1.6527.3.1.2.76.3.2.2.1.1	InetAddressType	not-accessible	The value of tmnxTwampSrvConnClientAddrType specifies the type of tmnxTwampSrvConnClientAddr. This is the fourth index for tmnxTwampSrvConnStatsTable.
IP tmnxTwampSrvConnClientAddr	1.3.6.1.4.1.6527.3.1.2.76.3.2.2.1.2	InetAddress	not-accessible	The value of tmnxTwampSrvConnClientAddr specifies the TWAMP client's address. This is the fifth index for tmnxTwampSrvConnStatsTable.
U32 tmnxTwampSrvConnSeqNum	1.3.6.1.4.1.6527.3.1.2.76.3.2.2.1.3	Unsigned32	not-accessible	The value of tmnxTwampSrvConnSeqNum specifies this control connection's sequence number. This is the sixth index for tmnxTwampSrvConnStatsTable - it allows n>1 rows (i.e. n>1 connections) for one client.
INT tmnxTwampSrvConnState	1.3.6.1.4.1.6527.3.1.2.76.3.2.2.1.4	INTEGER	read-only	The value of tmnxTwampSrvConnState indicates the operational state of a control connection managed by the TWAMP server. Code points: settingUp(1) - the connection is being established ready(2) - the connection is ready to accept test sessions running(3) - the connection is running a test.
U32 tmnxTwampSrvConnIdleTime	1.3.6.1.4.1.6527.3.1.2.76.3.2.2.1.5	Unsigned32	read-only	The value of tmnxTwampSrvConnIdleTime specifies the elapsed time, in seconds, since a TWAMP message was received on this control connection. When this value exceeds tmnxTwampSrvInactTimeout, the connection will be torn down.
TMN tmnxTwampSrvConnSessionCount	1.3.6.1.4.1.6527.3.1.2.76.3.2.2.1.6	TmnxTwampSrvSessionCount	read-only	The value of tmnxTwampSrvConnSessionCount indicates, for the connection specified by the index values, the number of currently in-progress TWAMP test sesssions.
C32 tmnxTwampSrvConnTestSessComplete	1.3.6.1.4.1.6527.3.1.2.76.3.2.2.1.7	Counter32	read-only	The value of tmnxTwampSrvConnTestSessComplete indicates, for the connection specified by the index values, the number of test sessions completed by the TWAMP server.
C32 tmnxTwampSrvConnTestSessRejected	1.3.6.1.4.1.6527.3.1.2.76.3.2.2.1.8	Counter32	read-only	The value of tmnxTwampSrvConnTestSessRejected indicates, for the connection specified by the index values, the number of test sessions rejected by the TWAMP server.
C32 tmnxTwampSrvConnTestPacketsRx	1.3.6.1.4.1.6527.3.1.2.76.3.2.2.1.9	Counter32	read-only	The value of tmnxTwampSrvConnTestPacketsRx indicates, for the connection specified by the index values, the number of TWAMP test packets received by the TWAMP server.
C32 tmnxTwampSrvConnTestPacketsTx	1.3.6.1.4.1.6527.3.1.2.76.3.2.2.1.10	Counter32	read-only	The value of tmnxTwampSrvConnTestPacketsTx indicates, for the connection specified by the index values, the number of TWAMP test packets sent by the TWAMP server.
tmnxTwampNotificationObjs	1.3.6.1.4.1.6527.3.1.2.76.4
IPt tmnxTwampSrvNotifClientAddrType	1.3.6.1.4.1.6527.3.1.2.76.4.1	InetAddressType	accessible-for-notify	The value of tmnxTwampSrvNotifClientAddrType indicates the address type of tmnxTwampSrvNotifClientAddr.
IP tmnxTwampSrvNotifClientAddr	1.3.6.1.4.1.6527.3.1.2.76.4.2	InetAddress	accessible-for-notify	The value of tmnxTwampSrvNotifClientAddr indicates, along with tmnxTwampSrvNotifClientAddrType, the address of a TWAMP client which could not be connected to the TWAMP server.
tmnxTwampNotifyPrefix	1.3.6.1.4.1.6527.3.1.3.76
tmnxTwampNotifications	1.3.6.1.4.1.6527.3.1.3.76.0
NTF tmnxTwampSrvInactivityTimeout	1.3.6.1.4.1.6527.3.1.3.76.0.1			[CAUSE] The tmnxTwampSrvInactivityTimeout notification is generated when a TWAMP control connection was disconnected by the TWAMP server because the connection was inactive for a period exceeding the server's inactivity timeout (tmnxTwampSrvInactTimeout). [EFFECT] The TWAMP client cannot request test runs on the disconnected connection. [RECOVERY] Check the IP connectivity between this node and the TWAMP client.
NTF tmnxTwampSrvMaxConnsExceeded	1.3.6.1.4.1.6527.3.1.3.76.0.2			[CAUSE] The tmnxTwampSrvMaxConnsExceeded notification is generated when a TWAMP control connection could not be established by the TWAMP server because the system-level maximum number of concurrent TWAMP control connections (tmnxTwampSrvMaxConnections) has been reached. [EFFECT] The TWAMP client cannot request test runs on the rejected connection. [RECOVERY] Configure the system-level maximum number of concurrent TWAMP control connections to a larger value, or disconnect any TWAMP control connection.
NTF tmnxTwampSrvPfxMaxConnsExceeded	1.3.6.1.4.1.6527.3.1.3.76.0.3			[CAUSE] The tmnxTwampSrvPfxMaxConnsExceeded notification is generated when a TWAMP control connection could not be established by the TWAMP server because the maximum number of concurrent TWAMP control connections configured against the TWAMP client's prefix (tmnxTwampSrvPrefixMaxConnections) has been reached. [EFFECT] The TWAMP client cannot request test runs on the rejected connection. [RECOVERY] Configure the prefix's maximum number of concurrent TWAMP control connections to a larger value, or disconnect a TWAMP control connection which uses the prefix.
NTF tmnxTwampSrvMaxSessExceeded	1.3.6.1.4.1.6527.3.1.3.76.0.4			[CAUSE] The tmnxTwampSrvMaxSessExceeded notification is generated when a TWAMP session could not be established by the TWAMP server because the system-level maximum number of concurrent TWAMP sessions (tmnxTwampSrvMaxSessions) has been reached. [EFFECT] The TWAMP client cannot request test runs on the rejected session. [RECOVERY] Configure the system-level maximum number of concurrent TWAMP sessions to a larger value, or disconnect any TWAMP session.
NTF tmnxTwampSrvPfxMaxSessExceeded	1.3.6.1.4.1.6527.3.1.3.76.0.5			[CAUSE] The tmnxTwampSrvPfxMaxSessExceeded notification is generated when a TWAMP session could not be established by the TWAMP server because the maximum number of concurrent TWAMP sessions configured against the TWAMP client's prefix (tmnxTwampSrvPrefixMaxSessions) has been reached. [EFFECT] The TWAMP client cannot request test runs on the rejected session. [RECOVERY] Configure the prefix's maximum number of concurrent TWAMP sessions to a larger value, or disconnect a TWAMP session which uses the prefix.

RFC description

Manages TWAMP (Two-Way Active Measurement Protocol) for network performance monitoring on Alcatel-Lucent SROS.

Start monitoring Nokia/Alcatel-Lucent 7750 SR service router (SROS) (TWAMP server admin/session-capacity status) 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.

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