Nortel-MsCarrier-MscPassport-HdlcTransparentMIB: View SNMP OID List / Download MIB

This entry controls the addition and deletion of mscHtds components.

A single entry in the table represents a single mscHtds component.

This variable is used as the basis for SNMP naming of mscHtds components. These components can be added and deleted.

This variable provides the component's string name for use with the ASCII Console Interface

This variable represents the storage type value for the mscHtds tables.

This variable represents the index for the mscHtds tables.

This entry controls the addition and deletion of mscHtdsFramer components.

A single entry in the table represents a single mscHtdsFramer component.

This variable is used as the basis for SNMP naming of mscHtdsFramer components. These components cannot be added nor deleted.

This variable provides the component's string name for use with the ASCII Console Interface

This variable represents the storage type value for the mscHtdsFramer tables.

This variable represents the index for the mscHtdsFramer tables.

This group contains the base provisioning data for the Framer component. Application or hardware interface specific provisioning data is contained in other provisionable Framer groups.

An entry in the mscHtdsFramerProvTable.

This attribute contains a hardware component name. The attribute associates the application with a specific link. This defines the module processor on which Framer's parent component (as well as Framer itself) will run.

This group contains attributes defining the framing of data on the link interface.

An entry in the mscHtdsFramerLinkTable.

This attribute determines whether data bits are to be inverted (1 to 0 and 0 to 1) before transmission of frames to the interface. If the value of this attribute is On, the incoming data bits will also be inverted when frames are received from the link before being processed. This option is typically used in hdlc framing mode when inversion is used to guarantee 1's density. Note that aborts (in hdlc and interrupting modes) are corrupted when data is inverted. Enumeration: 'on': 16, 'off': 0.

This attribute determines whether the data being received has the potential to be non-octet aligned. If it is set to yes, then neither crc checking and generation or abort detection will be functional. Enumeration: 'yes': 1, 'no': 0.

This attribute defines the type of CRC used. The CRC value calculated is appended to the end of the frames transmitted to the link. The CRC value is removed from the end of frames received from the link and checked for correctness. NoCrc means that CRC is not used. Enumeration: 'crc32': 1, 'noCrc': 2, 'crc16': 0.

This attribute defines the number of flags that are inserted between frames sent to the link interface.

This attribute determines how modem status lead information on a V35 or V11 port is handled. When the value of the attribute is set to on, line signal changes are passed transparently through the network to the remote end of the connection, where they are passed out on that end's outgoing leads. When the value of the attribute is set to off, line signal changes are not transparently passed through the network. Both ends must be provisioned to support this function for line signal transport to work. It is highly recommended that line signal interpretation is set to 'don't care' on the associated vport component (ie. vport attributes readyLineState and dataTransferLineState). Enumeration: 'on': 1, 'off': 0.

This group contains the three OSI State attributes. The descriptions generically indicate what each state attribute implies about the component. Note that not all the values and state combinations described here are supported by every component which uses this group. For component-specific information and the valid state combinations, refer to NTP 241-7001-150, Passport Operations and Maintenance Guide.

An entry in the mscHtdsFramerStateTable.

This attribute indicates the OSI Administrative State of the component. The value locked indicates that the component is administratively prohibited from providing services for its users. A Lock or Lock - force command has been previously issued for this component. When the value is locked, the value of usageState must be idle. The value shuttingDown indicates that the component is administratively permitted to provide service to its existing users only. A Lock command was issued against the component and it is in the process of shutting down. The value unlocked indicates that the component is administratively permitted to provide services for its users. To enter this state, issue an Unlock command to this component. Enumeration: 'locked': 0, 'shuttingDown': 2, 'unlocked': 1.

This attribute indicates the OSI Operational State of the component. The value enabled indicates that the component is available for operation. Note that if adminState is locked, it would still not be providing service. The value disabled indicates that the component is not available for operation. For example, something is wrong with the component itself, or with another component on which this one depends. If the value is disabled, the usageState must be idle. Enumeration: 'disabled': 0, 'enabled': 1.

This attribute indicates the OSI Usage State of the component. The value idle indicates that the component is not currently in use. The value active indicates that the component is in use and has spare capacity to provide for additional users. The value busy indicates that the component is in use and has no spare operating capacity for additional users at this time. Enumeration: 'active': 1, 'idle': 0, 'busy': 2.

This group contains the operational statistics data for a Framer component.

An entry in the mscHtdsFramerStatsTable.

This attribute counts the number of frames transmitted to the link interface by Framer. This count wraps to zero after reaching its maximum value.

This attribute counts the number of frames received from the link interface by Framer. This count wraps to zero after reaching its maximum value.

The number of bytes received from the link interface by Framer.

This attribute counts the total number of aborts received. This count wraps to zero after reaching its maximum value.

This attribute counts the total number of frames with CRC errors. This count wraps to zero after reaching its maximum value.

This attribute counts the total number of frames with LRC errors. This count wraps to zero after reaching its maximum value.

This attribute counts the total number of frames that were non octet aligned. This count wraps to zero after reaching its maximum value.

This attribute counts the total number of frames received from the link for which overruns occurred. This count wraps to zero after reaching its maximum value.

This attribute counts the total number of frames transmitted to the link for which underruns occurred. This count wraps to zero after reaching its maximum value.

This attribute counts the total number of frames received which were too large. The frame was longer than 8 kbytes or it contained more than the 255 block hardware limit. This count wraps to zero after reaching its maximum value.

This group contains the link utilization operational data for a Framer component.

An entry in the mscHtdsFramerUtilTable.

This attribute is the utilization of the normal priority data sent to the link as a percentage of the available bandwidth allocated for the service on the link. The utilization is the average for the last minute.

This attribute is the utilization of the normal priority data received from the link as a percentage of the available bandwidth allocated for the service on the link. The utilization is the average for the last minute.

This entry controls the addition and deletion of mscHtdsPlc components.

A single entry in the table represents a single mscHtdsPlc component.

This variable is used as the basis for SNMP naming of mscHtdsPlc components. These components cannot be added nor deleted.

This variable provides the component's string name for use with the ASCII Console Interface

This variable represents the storage type value for the mscHtdsPlc tables.

This variable represents the index for the mscHtdsPlc tables.

This group contains all provisionable attributes for a permanent logical connection. Note that all of the attributes are valid and provisionable on both ends of a connection. However with the exception of remoteName, all operational attributes are derived from the originating end provisioning, which may be either end unless remoteName is not provisioned on one end.

An entry in the mscHtdsPlcProvTable.

This attribute is the PLC's remote end point's address in the format of a Passport component name. The syntax of a component is: 'em/node type/instance'. For an alternative representation of end point's addresses, see addressToCall and localAddress PLC attributes. When using Passport component name representation, end points are identified using a node name and a service name. As an example, the end point component for a third Htds service on node MoonBase is: 'EM/MoonBase HTDS/3'. If the remoteName is provisioned, it must match the name of the remote end or the connection will not be established even if the remote end is provisioned correctly. If no remoteName is provisioned, then this LC will accept connections from any other remote LC and it will not originate calls. Connections establish faster and are unique if both ends are provisioned with remoteName. RemoteName should be used when the remote end of the connection resides within the same topology region. If it resides in a different topology region, then addressToCall and localAddress PLC attributes should be used. When both remoteName and addressToCall are provisioned, addressToCall takes precedence. That is, connection will be established to the service specified by addressToCall. These strings are case insensitive, but the complete component name must be input.

This attribute gives the priority at which a path is established. Zero(0) is the highest priority and four(4) is the lowest. When PORS establishes a path through the network, it uses the setupPriority attribute to determine its potential for bumping established paths to acquire their bandwidth. The holdingPriority, a complementary attribute of this component, indicates the priority a path maintains once it is established. A new path can bump an existing path if the new path's setupPriority is higher (numerically less) than the existing path's holdingPriority.

This attribute gives the priority that a path holds once it is established. Zero(0) is the highest priority and four(4) is the lowest. A path's holdingPriority determines its likelihood of being bumped by a new path to acquire its bandwidth. The setupPriority, a complementary attribute, indicates the priority of a path at establishment time. A new path can bump an existing path if the new path's setupPriority is higher (numerically less) than the existing path's holdingPriority.

This attribute gives the bandwidth (in bits per second) reserved by a path on each of the trunks of its route. This attribute represents the bandwidth for traffic outgoing to the remote end point. This value should be chosen to achieve the amount of statistical bandwidth sharing that is desired by the network administration. This reservation is not enforced and is used to determine how many paths can be supported on a trunk. Both ends should be provisioned with the correct values allowing for the fact that Transmit at this end represents Receive at the remote end. Note that when the values do not correspond the originating end of the connection determines the value.

This attribute gives the bandwidth (in bits per second) reserved by a path on each of trunks of its route. This attribute represents the bandwidth for traffic incoming from the remote end point. This value should be chosen to achieve the amount of statistical bandwidth sharing that is desired by the network administration. This reservation is not enforced and is used to determine how many paths can be supported on a trunk. Both ends should be provisioned with the correct values allowing for the fact that Transmit at this end represents Receive at the remote end. Note that when the values do not correspond the originating end of the connection determines the value.

This attribute indicates the type of traffic transmitted over the path. There are eight(8) possible traffic types, and the path can transmit only one of them. The originating end of the connection determines the type. These are arbitrary designations for traffic type. The voice, data and video traffic types are defined, and five(5) other arbitrary traffic types can be defined by the network administration. This attribute is used in the route selection process to restrict the route to trunks that support this traffic type. The supportedTrafficType trunk attribute lists all the types of traffic allowed on the trunk. For example, if requiredTrafficType is specified as trafficType1 then only trunks that include trafficType1 in supportedTrafficType, will be candidates for this connection. Enumeration: 'trafficType5': 7, 'trafficType4': 6, 'trafficType1': 3, 'trafficType3': 5, 'trafficType2': 4, 'video': 2, 'voice': 0, 'data': 1.

This attribute lists up to eight(8) types of trunk that can be used on the route. The terrestrial and satellite trunk types have been defined, leaving six(6) remaining arbitrary types that can be defined by the network administration. The trunk's type is indicated in the trunkType attribute of the Trunk component. When selecting a route, PORS only chooses trunks whose trunkType are in the permittedTrunkTypes for the path. Description of bits: terrestrial(0) satellite(1) trunkType1(2) trunkType2(3) trunkType3(4) trunkType4(5) trunkType5(6) trunkType6(7)

This attribute indicates the required minimum level of security of the trunks on the route. Zero(0) represents the most secure and seven(7) represents the least secure. The trunk's security is indicated by the trunkSecurity attribute of the Trunk component, and has values identical in range and meaning to the requiredSecurity attribute. PORS ensures that any route selected does not contain a trunk whose trunkSecurity attribute is numerically greater than the requiredSecurity.

This attribute indicates the allowed customer defined parameter of the trunks on the route. Its value, a number from zero(0) to seven(7), is chosen by a network administration to have a meaning specific to their network, thus allowing them to customize the use of their trunks. A complementary trunk attribute, customerParameter, also has a value from zero(0) to seven(7). The route selection process does not consider trunks whose customerParameter is greater than the requiredCustomerParameter of the path.

This attribute indicates whether a route is selected on the basis of minimizing the cost or the delay. Each trunk has a cost and a delay metric associated with it. The cost or delay of a route is the sum of the cost or delay metrics of all the trunks on the route. The route selection algorithm uses this attribute as the minimization criteria. If more than one route is found while using this attribute as the minimization criteria, then the route with the smallest non- minimization metric is chosen amongst the equivalent routes. Enumeration: 'delay': 1, 'cost': 0.

This attribute indicates an upper bound on the cost metric of a route, which is the sum of the cost metrics of all trunks on the route. The cost metric is the trunkCost attribute of the Trunk component. This attribute is used to accept or reject a path after the route selection algorithm has been applied, regardless of the minimization criteria. It is possible that there may not be a route with an acceptable cost.

This attribute indicates an upper bound on the delay of a route, which is the sum of the delay of all trunks on the route. It should be provisioned with a reasonable maximum acceptable delay for the end to end one way delay of a 512 byte packet. Note that the delay for a trunk can be a provisioned (with override) or measured value on the trunk. PORs does not recommend using override for the delay on a trunk since this has little added value for PORs traffic. Remember, that the trunk measuredRoundTripDelay (ms) discovered through the Trunk staging protocols, divided by two and truncated, to provide the one way delay, is used to populate the topological database. The value includes emission, propagation, and queuing delays. A 512 byte data packet is used to perform the measurement. This value is updated periodically by Trunks and reflects the operating delay of the trunk. PORs uses this attribute to accept or reject a path after the route selection algorithm has been applied, regardless of the minimization criteria.

This attribute indicates the urgency with which packets on the path are emitted by the trunks on the route. EmissionPriority of Zero(0) indicates the highest emission priority, while two (2) indicates the lowest emission priority. Packets with a higher emissionPriority (or numerically less) are serviced and sent out before the packets of lower emissionPriority (or numerically higher).

This attribute indicates the importance of the packets on the path. One(1) is used for paths carrying the most important traffic, and three(3) is used for paths carrying the least important traffic. Packets with lower discardPriority(numerically higher) are discarded after packets with a higher discardPriority(numerically lower).

This attribute specifies if the path for this PLC is determined automatically or by static provisioning. The default (normal) is to automatically choose a route with Route Selection. Normal pathTypes require less provisioning and can dynamically handle path failures. The other pathTypes are both manual pathTypes where the operator must specify, through provisioning, a static route termed the manualPath. A manual pathType connection is nearly identical to a normal path type connection with the exception that the route is pre-provisioned. For a manual pathType, bandwidth reservations are respected along the path exactly as in a normal path. The last type, the forced pathType, is also a manual path but regardless of the bandwidth available the route is granted provided the trunks are operational and there are sufficient Logical Channels (LChs). The forced pathType could result in over committing the reserved bandwidth allowed on a trunk. A better way to achieve the effects of a forced pathType is to use a manual pathType with setupPriority = 0 and holdingPriority = 0. In this manner the path will reserve correct bandwidth and it will bump other paths if required while not being bumped itself. Enumeration: 'forced': 2, 'manual': 1, 'normal': 0.

This attribute is used to specify whether the application can tolerate momentary interruption of a path while a new path is selected. If disconnectConnection is chosen, the application is informed as soon as possible about a failure by disconnection. If the attribute is set to reRoutePath, the path may attempt an immediate reroute, provided the failure is a recoverable failure. If rerouting fails the application is informed of the failure. With this option set to reRoutePath the LCo may wait up to 30 seconds before informing the service of complete disconnection in order to allow both ends to attempt to reconnect. Note that if PLC components are different at both ends only the calling end is allowed to reconnect. All pathTypes respect this attribute. Also on a manualPath with both ends provisioned with independent paths (at least with respect to the failure) this option will have the desired effect that the path is rerouted without complete disconnection at both ends. Enumeration: 'reRoutePath': 1, 'disconnectConnection': 0.

This attribute controls when bumping occurs in the route selection process. A connection with higher (numerically less) setupPriority may bump a connection with lower (numerically higher) holdingPriority in order to acquire its bandwidth and be established. By default, bumping occurs only when it is necessary. That is, a connection will bump another connection only if there is no other way for the connection to be established. A connection may be set to always bump in order to find the best route it may have. Enumeration: 'bumpWhenNecessary': 0, 'bumpToObtainBestRoute': 1.

This attribute is used to specify whether this connection should attempt to optimize its path when requested by the routing PORS component. Every path is as optimal as it can be when it is established, but as network traffic patterns and configurations change this path may no longer be as optimal as it could be. The PORS connection manager on a module requests circuits to optimize at the optimization interval. Enumeration: 'disabled': 0, 'enabled': 1.

This attribute is the PLC's remote end point's address in the format of a NSAP address. As such it must consist of a string of hex digits although not all 40 digits must be specified. For an alternative representation of end point's addresses, see romoteName attribute. If the addressToCall is provisioned, it must match localAddress provisioned on the remote end or the connection will not be established. Connections establish faster and are unique if both ends are provisioned with addressToCall. AddressToCall must be used when the romote end of the connection resides in different topology region. If it resides in the same topology region, then romoteName may be used. When both remoteName and addressToCall are provisioned, addressToCall takes precedence. That is, connection will be established to the service specified by addressToCall.

This attribute is the PLC's end point address in the format of an NSAP address. As such it must consist of a string of hex digits although not all 40 digits must be specified. LocalAddress must share a prefix with MOD nodePrefix or one of MOD alternatePorsPrefixes for this node, otherwise PORS will not be able to route calls to this service. LocalAddress is used in conjunction with addressToCall. That is, the end responsible for originating calls must have addressToCall provisioned, while the end responsible for terminationg calls must have localAddress provisioned. In such a case, addressToCall on the originating end must match exactly the localAddress of the terminating end. Note that both ends may be originating and terminating at the same time. That is, both ends may have addressToCall and localAddress provisioned as long as addressToCall and localAddress on different ends are identical.

This attribute indicates an upper bound on the gateway cost metric of a route, which is the sum of the gateway cost metrics of all gateway links on the route. It has the same semantics as the maximumAcceptableCost except that gateway cost metrics are used instead of trunk cost metrics. Gateway cost metrics are provisioned under Trunk Address component of a gateway link specifying a gateway costs of reaching an address through the link.

This attribute is optional and specifies the sequence of trunks to be used as the route for the path, thus bypassing PORS' automatic route selection. If the path fails the validation, no other path can be selected1. This attribute should only be used in special cases since the route selection algorithm is able to find and maintain the best routes. A related path attribute, the pathType, determines if this route will be used as a manual or forced path type. As an example, the trunk component name for the third trunk on node MoonBase is 'EM/MoonBase Trk/3'. Note that only the first end of the trunk that the packet would encounter is provisioned. These strings are case insensitive but the complete component name must be input. Note 1: the trunk designation must be a 3-letter form, e.g., 'trk'. Note 2: only the outbound trunks component names are used to provision the manualPath. Note 3: It is recommended to have two independent routes specified for a manual path by specifying a different manualPath (non- symmetric) for each end. In this case, there is no way to select which route will be used (first up wins) but if one path is torn down due to a failure then the other manualPath may be used to reroute the path.

An entry in the mscHtdsPlcMpathTable.

This variable represents the mscHtdsPlcMpathTable specific index for the mscHtdsPlcMpathTable.

This variable represents an individual value for the mscHtdsPlcMpathTable.

This entry controls the addition and deletion of mscHtdsLCo components.

A single entry in the table represents a single mscHtdsLCo component.

This variable is used as the basis for SNMP naming of mscHtdsLCo components. These components cannot be added nor deleted.

This variable provides the component's string name for use with the ASCII Console Interface

This variable represents the storage type value for the mscHtdsLCo tables.

This variable represents the index for the mscHtdsLCo tables.

This group contains all operational attributes for the path oriented LCo.

An entry in the mscHtdsLCoPathDataTable.

This attribute reflects the current state of the connection. The pathDown state indicates a connection that has no remote end provisioned or the application has not yet signalled for a path. The selectingRoute state occurs when a request has been sent to route selector and it has not yet responded. The connectingState occurs while a path is being established. The pathUp state is the normal operational state of a path. The pathDownRetrying state indicates a path that attempted route selection but received no route and is now waiting to retry route selection again. Enumeration: 'pathUp': 3, 'pathDown': 0, 'pathDownRetrying': 4, 'connecting': 2, 'selectingRoute': 1.

If set and the current PLC remoteName is blank this remoteName will override the blank PLC remoteName. Usually you would set this attribute and then lock/unlock the service component which will result in this new overrideRemoteName being used as if it had been provisioned into the PLC remoteName. The advantage of this attribute is that the connection's remoteName can be changed immediately without having to 'activate prov' but the disadvantage is that the overrideRemoteName is not permanent and if the card or switch is reset the override will be lost.

This attribute identifies whether this is the calling or called end of the path. Enumeration: 'called': 1, 'calling': 0.

This attribute gives the route's total cost metric. It is calculated as the sum of the cost metric of all trunks in the path at the time the connection was established. The cost metric of a trunk is defined by the trunkCost attribute of the Trunk component. The costMetric for an LCo that is originated and terminated on the same module is 0.

This attribute gives the total delay of the route as the one way delay for a 512 byte packet. It is calculated as the sum of the delays of all trunks in the path stored in topology at the time the connection was established. The delay for an LCo that is originated and terminated on the same module is 0.

This attribute contains the time taken for a packet (cell) of 44 bytes to be transmitted to the remote LCo and return to this LCo. The number reported is given in milliseconds to the nearest millisecond. A value of one millisecond is reported if the time is less than 1 millisecond even though the delay may be less than 1 Millisecond when the LCo is originated and terminated on the same module.

This attribute gives the priority at which the current path is established. Zero is the highest priority and four is the lowest. The holdingPriority, a complementary attribute of this component, indicates the priority a path maintains once it is established.

This attribute gives the priority at which a path holds its current path once the path is established. Zero is the highest priority and four is the lowest. The setupPriority, a complementary attribute, indicates the priority of a path at establishment time.

This attribute gives the actual bandwidth (in bits per second) reserved by this path on each of the trunks of its route. This attribute represents the bandwidth for traffic outgoing to the remote end point. The originating end of the connection determines this value.

This attribute gives the actual bandwidth (in bits per second) reserved by this path on each of trunks of its route. This attribute represents the bandwidth for traffic incoming from the remote end point. The originating end of the connection determines this value

This operational attribute indicates the type of traffic transmitted over the path. There are eight possible traffic types, and the path can transmit only one of them. The originating end of the connection determines the type. These are arbitrary designations for traffic type. The voice, data and video traffic types are defined, and five other arbitrary traffic types can be defined by the network administration. This attribute is used in the route selection process to restrict the route to trunks that support this traffic type. The supportedTrafficType trunk attribute lists all the types of traffic allowed on the trunk. For example, if requiredTrafficType is specified as trafficType1 then only trunks that include trafficType1 in supportedTrafficType, will be candidates for this connection. Enumeration: 'trafficType5': 7, 'trafficType4': 6, 'trafficType1': 3, 'trafficType3': 5, 'trafficType2': 4, 'video': 2, 'voice': 0, 'data': 1.

This operational attribute lists up to eight types of trunk that can be used on the route. The originating end of the connection determines the types. The terrestrial and satellite trunk types have been defined, leaving six remaining arbitrary types that can be defined by the network administration. The trunk's type is indicated in the trunkType attribute of the Trunk component. When selecting a route, PORS only chooses trunks whose trunkType are in the permittedTrunkTypes for the path. Description of bits: terrestrial(0) satellite(1) trunkType1(2) trunkType2(3) trunkType3(4) trunkType4(5) trunkType5(6) trunkType6(7)

This attribute indicates the required minimum level of security of the trunks on the route. Zero represents the most secure and seven represents the least secure. The trunk's security is indicated by the trunkSecurity attribute of the Trunk component, and has values identical in range and meaning to the requiredSecurity attribute. PORS ensures that any route selected does not contain a trunk whose trunkSecurity attribute is numerically greater than the requiredSecurity.

This attribute indicates the allowed customer defined parameter of the trunks on the route.The originating end of the connection determines the customer defined parameter. Its value, a number from zero to seven, is chosen by a network administration to have a meaning specific to their network, thus allowing them to customize the use of their trunks. A complementary trunk attribute, customerParameter, also has a value from zero to seven. The route selection process does not consider trunks whose customerParameter is greater than the requiredCustomerParameter of the path.

This attribute indicates the urgency with which packets on the path are emitted by the trunks on the route. The originating end of the connection selects the emissionPriority. EmissionPriority of zero indicates the highest emission priority, while two indicates the lowest emission priority. Packets with a higher emissionPriority (or numerically less) are serviced and sent out before the packets of lower emissionPriority (or numerically higher).

This attribute indicates the importance of the packets on the path.The originating end of the connection sets discardPriority. One is used for paths carrying the most important traffic, and three is used for paths carrying the least important traffic. Packets with lower discardPriority(numerically lower) are discarded after packets with a higher discardPriority(numerically higher).

This attribute indicates whether the path for this PLC was determined automatically or by static provisioning. Normal pathTypes are selected automatically by Route Selector.The other pathTypes are both manual pathTypes where the operator must specify, through provisioning, a static route termed the manualPath. A manual pathType connection is nearly identical to a normal path type connection with the exception that the route is pre-provisioned. For a manual pathType, bandwidth reservations are respected along the path exactly as in a normal path. The last type, the forced pathType, is also a manual path but regardless of the bandwidth available the route is granted provided the trunks are operational and there are sufficient Logical Channels (LChs). The forced pathType could result in over committing the reserved bandwidth allowed on a trunk. A better way to achieve the effects of a forced pathType is to use a manual pathType with setupPriority = 0 and holdingPriority = 0. In this manner the path will reserve correct bandwidth and it will bump other paths if required while not being bumped itself. Enumeration: 'forced': 2, 'manual': 1, 'normal': 0.

This attribute is the count of the number of times the path chosen during route selection could not be instantiated. This count should be three or below if the network is performing adequately. A high value indicates that the route selection is often performed using an out-of-date view of available network bandwidth and/or topology. This attribute will only increase at the calling end of the connection. This attribute is reset each time a path reconnects and stops counting when it reaches its maximum value.

This attribute is the count of the number of times the path has successfully connected. It is set to zero the first time the path is up. If a path fails anytime after connecting this count will be incremented when the path is up again. Failed route requests do not count in this statistic. See retryCount above. This attribute stops counting at its maximum value.

This attribute is the route selection's reasonForNoRoute and provides a brief reason for which a route was not selected. The reasons are essentially self-explanatory. Perhaps two reasons for no route require some explanation. The reason unknownRemoteNodeName is issued when the remote node name is not in the topological database. The reason plcAttributesNotMet is issued when there is no network connectivity at a level specified by the PLC attributes. This reason is also issued when there is no physical connectivity between two end nodes. Enumeration: 'destinationNotSpecified': 2, 'attributesNotMet': 11, 'none': 0, 'attributeProfileProblem': 13, 'incorrectDestinationEndPoint': 5, 'sameNode': 8, 'unknownDestination': 7, 'routeCostTooMuch': 9, 'unknownSource': 6, 'manualPathIndexProblem': 14, 'unknownDestinationName': 3, 'destinationNameTooLong': 1, 'anError': 12, 'routesDelayTooLong': 10, 'incorrectDestination': 4.

This attribute reflects the last tear down reason for a connection (LCo). In many cases this displays the reason for a momentary service interruption. This attribute applies to the last path failure only. If a path is no longer up, this may give an indication to the reason that the path has failed. In many cases an alarm will also be generated with more specific information. The following is a brief description of the reasons: none - This path has no information for the teardown this is typical of a path provisioned with no remoteName that has not been up. normalShutDown - This path has gone down due to normal call termination. insufficientTxLcOrBandwidth - At present there is either no available bandwidth or logical channel numbers available on one or more of the trunks for this path in the transmit direction. insufficientRxLcOrBandwidth - At present there is either no available bandwidth or logical channel numbers available on one or more of the trunks for this path in the receive direction. trunkFailure- A trunk on the path has failed or has gone down due to a provisioning change of a critical attribute. trunkCardFailure- A trunk FP card has failed along the path. accessCardFailure- The FP on which the peer access service was running has failed. operatorForced- The path has terminated due to the operator locking a trunk along the path. lostLcnClash- The path has terminated because the PA's at both ends of an intermediate trunk have allocated the same LC to different calls. When this happens both calls must go down and then try to come up again a fraction of a second later (effectively ensuring that they will now be assigned different LC's). It is normal to get the odd clash especially when the PA's usedLC is approaching the PA's maxLC. networkCongestion - The path has failed due to control information being lost and not recoverable. trunkNotFound - Occurs on a manual path usually. Check for trunks not up or names provisioned incorrectly. farEndNotFound - The far end is not provisioned or is not up. Check remote Name. wrongModuleReached - This may occur on a manual path. Check provisioning for correct trunk and service names. For a normal path, the network Topology may be changing check remoteName. farEndBusy - The far end has been reached but it is busy. Check remoteName and remote end provisioning. callLoopedBack - This LCo is provisioned to call itself. Re- provision since this is invalid. unknownReason - The failure was not resolved. farEndNotReady - The remote end was reached but the connection was refused due to the remote end not being enabled. remoteNameMismatch - The remote end has alarmed and rejected this setup due to remoteName provisioning. serviceTypeMismatch - The remote Service Type does not match this service type. Check provisioning. reconnectFromFarEnd - The remote end re-established this connection. Check the remote end lastTearDownReason to determine the real reason. bumped - Another call bumped this path from a trunk to get bandwidth (or an LC) which it required to come up. This other path had a higher setupPriority than this path's holdingPriority hence it was allowed to steal the bandwidth (or LC) from this path. optimized - This call has been rerouted due to the optimization feature. The call is still active this just indicates why the path changed. trunkOrFarEndDidNotSupportMode - This call was unable to complete because a mode required by the service was not supported by one of the trunks the route went through or by the far end service it connected to. Currently the only mode that this applies to is the map/mux mode on TRUNK PA ATM component. Map mode was required by the application (CES/FrAtm etc.) but was not available on the TRUNK PA ATM component through which the call was routed or the far end CES/FrAtm component did not specify the same mode. Enumeration: 'insufficientRxLcOrBandwidth': 3, 'lostLcnClash': 7, 'accessCardFailure': 20, 'networkCongestion': 8, 'farEndBusy': 12, 'farEndNotReady': 15, 'callLoopedBack': 13, 'unknownReason': 14, 'trunkCardFailure': 5, 'insufficientTxLcOrBandwidth': 2, 'overrideRemoteName': 22, 'serviceTypeMismatch': 17, 'remoteNameMismatch': 16, 'wrongModuleReached': 11, 'trunkNotFound': 9, 'trunkOrFarEndDidNotSupportMode': 23, 'reconnectFromFarEnd': 18, 'farEndNotFound': 10, 'optimized': 21, 'operatorForced': 6, 'bumped': 19, 'none': 0, 'trunkFailure': 4, 'normalShutDown': 1.

This attribute displays whether the application is set to tolerate momentary interruption of a path while a new path is selected. If disconnectConnection is displayed, the application is informed as soon as possible about a failure by disconnection. If the attribute displays reRoutePath, the path may attempt an immediate reroute, provided the failure is a recoverable failure. If rerouting fails the application is informed of the failure. With this option set to reRoutePath the LCo may wait up to 30 seconds before informing the service of complete disconnection in order to allow both ends to attempt to reconnect. Note that if PLC components are different at both ends only the calling end is allowed to reconnect. All pathTypes respect this attribute. Also on a manualPath with both ends provisioned with independent paths (at least with respect to the failure) this option will have the desired effect that the path is rerouted without complete disconnection at both ends Enumeration: 'reRoutePath': 1, 'disconnectConnection': 0.

This attribute specifies when bumping will occur during route selection process. Bumping may occur when necessary or always. It will be necessary for a connection to bump if there is not enough resources for the connection to be established and these resources are occupied by a connection whose setupPriority is lower (numerically higher) than the connection's setupPriority. A connection may also always bump in order to obtain the best route. Enumeration: 'bumpWhenNecessary': 0, 'bumpToObtainBestRoute': 1.

This attribute is used to specify whether this connection should attempt to optimize its path when requested by the routing PORS component. Every path is as optimal as it can be when it is established, but as network traffic patterns and configurations change this path may no longer be as optimal as it could be. The PORS connection manager on a module requests circuits to optimize at the optimization interval. Enumeration: 'disabled': 0, 'enabled': 1.

This is the time stamp when the current path was established or reestablished.

This group contains the operational statistics attributes for the path oriented LCo.

An entry in the mscHtdsLCoStatsTable.

This attribute counts the number of packets transmitted to the network over this Logical Connection.

This attribute counts the number of bytes sent to the network over this Logical Connection.

This attribute counts the number of packets received from the remote LCo via the network.

This attribute counts the number of bytes received from the remote LCo via the network.

This attribute contains the trunk component names over which the path has been instantiated and the remote end point name terminating the path.

An entry in the mscHtdsLCoPathTable.

This variable represents both the value and the index for the mscHtdsLCoPathTable.

This group contains the attribute for a component's Customer Identifier (CID). Refer to the attribute description for a detailed explanation of CIDs.

An entry in the mscHtdsCidDataTable.

This attribute holds the Customer Identifier (CID). Every component has a CID. If a component has a cid attribute, the component's CID is the provisioned value of that attribute; otherwise the component inherits the CID of its parent. The top- level component has a CID of 0. Every operator session also has a CID, which is the CID provisioned for the operator's user ID. An operator will see only the stream data for components having a matching CID. Also, the operator will be allowed to issue commands for only those components which have a matching CID. An operator CID of 0 is used to identify the Network Manager (referred to as 'NetMan' in DPN). This CID matches the CID of any component. Values 1 to 8191 inclusive (equivalent to 'basic CIDs' in DPN) may be assigned to specific customers.

This group contains the provisionable attributes for the ifEntry.

An entry in the mscHtdsIfEntryTable.

The desired state of the interface. The up state indicates the interface is operational. The down state indicates the interface is not operational. The testing state indicates that no operational packets can be passed. Enumeration: 'down': 2, 'testing': 3, 'up': 1.

This is the index for the IfEntry. Its value is automatically initialized during the provisioning process.

This group includes the Operational Status attribute. This attribute defines the current operational state of this component.

An entry in the mscHtdsOperStatusTable.

The current state of the interface. The up state indicates the interface is operational and capable of forwarding packets. The down state indicates the interface is not operational, thus unable to forward packets. testing state indicates that no operational packets can be passed. Enumeration: 'down': 2, 'testing': 3, 'up': 1.

This group contains the three OSI State attributes and the six OSI Status attributes. The descriptions generically indicate what each attribute implies about the component. Note that not all the values and state combinations described here are supported by every component which uses this group. For component-specific information and the valid state combinations, refer to NTP 241- 7001-150, Passport Operations and Maintenance Guide.

An entry in the mscHtdsStateTable.

This attribute indicates the OSI Administrative State of the component. The value locked indicates that the component is administratively prohibited from providing services for its users. A Lock or Lock - force command has been previously issued for this component. When the value is locked, the value of usageState must be idle. The value shuttingDown indicates that the component is administratively permitted to provide service to its existing users only. A Lock command was issued against the component and it is in the process of shutting down. The value unlocked indicates that the component is administratively permitted to provide services for its users. To enter this state, issue an Unlock command to this component. The OSI Status attributes, if supported by the component, may provide more details, qualifying the state of the component. Enumeration: 'locked': 0, 'shuttingDown': 2, 'unlocked': 1.

This attribute indicates the OSI Operational State of the component. The value enabled indicates that the component is available for operation. Note that if adminState is locked, it would still not be providing service. The value disabled indicates that the component is not available for operation. For example, something is wrong with the component itself, or with another component on which this one depends. If the value is disabled, the usageState must be idle. The OSI Status attributes, if supported by the component, may provide more details, qualifying the state of the component. Enumeration: 'disabled': 0, 'enabled': 1.

This attribute indicates the OSI Usage State of the component. The value idle indicates that the component is not currently in use. The value active indicates that the component is in use and has spare capacity to provide for additional users. The value busy indicates that the component is in use and has no spare operating capacity for additional users at this time. The OSI Status attributes, if supported by the component, may provide more details, qualifying the state of the component. Enumeration: 'active': 1, 'idle': 0, 'busy': 2.

If supported by the component, this attribute indicates the OSI Availability status of the component. Note that, even though it is defined as a multi-valued set, at most one value is shown to the user. When no values are in the set, this indicates that either the attribute is not supported or that none of the status conditions described below are present. The value inTest indicates that the resource is undergoing a test procedure. If adminState is locked or shuttingDown, the normal users are precluded from using the resource and controlStatus is reservedForTest. Tests that do not exclude additional users can be present in any operational or administrative state but the reservedForTest condition should not be present. The value failed indicates that the component has an internal fault that prevents it from operating. The operationalState is disabled. The value dependency indicates that the component cannot operate because some other resource on which it depends is unavailable. The operationalState is disabled. The value powerOff indicates the resource requires power to be applied and it is not powered on. The operationalState is disabled. The value offLine indicates the resource requires a routine operation (either manual, automatic, or both) to be performed to place it on-line and make it available for use. The operationalState is disabled. The value offDuty indicates the resource is inactive in accordance with a predetermined time schedule. In the absence of other disabling conditions, the operationalState is enabled or disabled. The value degraded indicates the service provided by the component is degraded in some way, such as in speed or operating capacity. However, the resource remains available for service. The operationalState is enabled. The value notInstalled indicates the resource is not present. The operationalState is disabled. The value logFull is not used. Description of bits: inTest(0) failed(1) powerOff(2) offLine(3) offDuty(4) dependency(5) degraded(6) notInstalled(7) logFull(8)

If supported by the component, this attribute indicates the OSI Procedural status of the component. Note that, even though it is defined as a multi-valued set, at most one value is shown to the user. When no values are in the set, this indicates that either the attribute is not supported or that none of the status conditions described below are present. The value initializationRequired indicates (for a resource which doesn't initialize autonomously) that initialization is required before it can perform its normal functions, and this procedure has not been initiated. The operationalState is disabled. The value notInitialized indicates (for a resource which does initialize autonomously) that initialization is required before it can perform its normal functions, and this procedure has not been initiated. The operationalState may be enabled or disabled. The value initializing indicates that initialization has been initiated but is not yet complete. The operationalState may be enabled or disabled. The value reporting indicates the resource has completed some processing operation and is notifying the results. The operationalState is enabled. The value terminating indicates the component is in a termination phase. If the resource doesn't reinitialize autonomously, operationalState is disabled; otherwise it is enabled or disabled. Description of bits: initializationRequired(0) notInitialized(1) initializing(2) reporting(3) terminating(4)

If supported by the component, this attribute indicates the OSI Control status of the component. Note that, even though it is defined as a multi-valued set, at most one value is shown to the user. When no values are in the set, this indicates that either the attribute is not supported or that none of the status conditions described below are present. The value subjectToTest indicates the resource is available but tests may be conducted simultaneously at unpredictable times, which may cause it to exhibit unusual characteristics. The value partOfServicesLocked indicates that part of the service is restricted from users of a resource. The adminState is unlocked. The value reservedForTest indicates that the component is administratively unavailable because it is undergoing a test procedure. The adminState is locked. The value suspended indicates that the service has been administratively suspended. Description of bits: subjectToTest(0) partOfServicesLocked(1) reservedForTest(2) suspended(3)

If supported by the component, this attribute indicates the OSI Alarm status of the component. Note that, even though it is defined as a multi-valued set, at most one value is shown to the user. When no values are in the set, this indicates that either the attribute is not supported or that none of the status conditions described below are present. The value underRepair indicates the component is currently being repaired. The operationalState is enabled or disabled. The value critical indicates one or more critical alarms are outstanding against the component. Other, less severe, alarms may also be outstanding. The operationalState is enabled or disabled. The value major indicates one or more major alarms are outstanding against the component. Other, less severe, alarms may also be outstanding. The operationalState is enabled or disabled. The value minor indicates one or more minor alarms are outstanding against the component. Other, less severe, alarms may also be outstanding. The operationalState is enabled or disabled. The value alarmOutstanding generically indicates that an alarm of some severity is outstanding against the component. Description of bits: underRepair(0) critical(1) major(2) minor(3) alarmOutstanding(4)

If supported by the component, this attribute indicates the OSI Standby status of the component. The value notSet indicates that either the attribute is not supported or that none of the status conditions described below are present. Note that this is a non-standard value, used because the original specification indicated this attribute was set-valued and thus, did not provide a value to indicate that none of the other three are applicable. The value hotStandby indicates that the resource is not providing service but will be immediately able to take over the role of the resource to be backed up, without initialization activity, and containing the same information as the resource to be backed up. The value coldStandby indicates the resource is a backup for another resource but will not be immediately able to take over the role of the backed up resource and will require some initialization activity. The value providingService indicates that this component, as a backup resource, is currently backing up another resource. Enumeration: 'notSet': 15, 'coldStandby': 1, 'hotStandby': 0, 'providingService': 2.

This attribute indicates the OSI Unknown status of the component. The value false indicates that all of the other OSI State and Status attribute values can be considered accurate. The value true indicates that the actual state of the component is not known for sure. Enumeration: 'true': 1, 'false': 0.