PCE-DISC-STD-MIB

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Organization: Path Computation Element (PCE) Working Group

Last Updated: 2006-10-15

Category: MPLS/Traffic Engineering

Description: Tracks Path Computation Element (PCE) discovery performed through OSPF/IS-IS flooding, capturing advertised PCE capabilities and domain scope.

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What Is PCE-DISC-STD-MIB?

PCE-DISC-STD-MIB is a vendor-neutral IETF standards MIB for monitoring Path Computation Element (PCE) discovery, which occurs via OSPF or IS-IS flooding in TE-enabled networks. It exposes discovered-PCE information such as advertised capabilities and domain/scope rather than conventional device data. Its monitoring focus is on control-plane/software state: it lets an operator confirm which PCEs have been discovered network-wide and verify their advertised capabilities and scope are consistent, which is essential for centralized path-computation to work correctly, rather than reporting hardware health. It has an explicit dependency on the underlying routing protocols (OSPF-MIB/ISIS-MIB and their TE extensions), since discovery information is learned via their flooding mechanisms, and it complements PCE-MIB. It is deployed on routers acting as PCE clients in MPLS-TE/GMPLS backbone networks that use PCE-based path computation. Engineers can download the PCE-DISC-STD-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in PCE-DISC-STD-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

vendor-neutral, standards-based MIB, not tied to a specific manufacturer
MPLS-TE/GMPLS routers acting as PCE clients

Monitoring Examples

No specific object or table names were supplied for this module, so a concrete example cannot cite real identifiers here. Generally, a PCE discovery MIB of this kind would expose a table of discovered PCEs keyed by router or PCE address with columns for advertised capability and scope, letting an operator verify that a newly deployed PCE has been correctly discovered network-wide via OSPF/IS-IS flooding.

Imported Objects

From IANA-ADDRESS-FAMILY-NUMBERS-MIB

AddressFamilyNumbers

From IANA-RTPROTO-MIB

IANAipRouteProtocol

From IPV6-TC

Ipv6Address

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Gauge32
Integer32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32
experimental

From SNMPv2-TC

RowStatus
TEXTUAL-CONVENTION
TimeStamp
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
pceDiscStdMIB	1.3.6.1.3.10000			This MIB module defines a collection of objects for managing Path Computation Elements (PCEs) Discovery.
pceDiscNotifications	1.3.6.1.3.10000.0
pceDiscMIBObjects	1.3.6.1.3.10000.1
pceDiscoveryObjects	1.3.6.1.3.10000.1.1
INT pceDiscoveryAdminStatus	1.3.6.1.3.10000.1.1.1	INTEGER	read-write	Setting this object to disabled(2) disables the discovery of PCEs. Once disabled, The discovery must be explicitly enabled to restore discovery of PCEs. Setting this object to enabled(1) enables the discovery of PCEs.
C32 pceDiscoveryKnowPCEs	1.3.6.1.3.10000.1.1.2	Counter32	read-only	The number of PCEs the PCC is potentially in relation with. This includes PCE manually declared and active PCEs
C32 pceDiscoveryActivePCEs	1.3.6.1.3.10000.1.1.3	Counter32	read-only	The number of active PCEs. The detection of the activity a a PCE depends on the nature discovery mechanism. PCE discovered using PCED information received: The relation between the PCC and a PCE is active while the PCE discovery protocol maintains a communication between the PCC and this PCE. PCE Manually declared: The relation between the PCC and a PCE is active and the discovery mechanism is implementation specific;
pceDiscoveryTable	1.3.6.1.3.10000.1.1.4		not-accessible	Information describing the PCEs discovered.
pceDiscoveryEntry	1.3.6.1.3.10000.1.1.4.1		not-accessible	Information describing general information of each PCE discovered.
I32 pceDiscoveryIndex	1.3.6.1.3.10000.1.1.4.1.1	Integer32	not-accessible	This object identifies locally the PCE for which this entry contains information.
IAN pceDiscoveryMechanism	1.3.6.1.3.10000.1.1.4.1.2	IANAipRouteProtocol	read-only	This object identifies the type of discovery mechanism used to discover the PCE. The discovery mechanisms covered by PCE WG at the time of the specification are : other (1), --not specified local (2), -- local interface isIs (9), -- Dual IS-IS ospf (13), -- Open Shortest Path First bgp (14), -- Border Gateway Protocol It does not preclude the usage of another routing protocol numbered by this IANAipRouteProtocol
IP pceDiscoveryIPv4Address	1.3.6.1.3.10000.1.1.4.1.3	IpAddress	read-only	This object is the IP address to be used to reach the PCE. It corresponds to the PCED PCE-ADDRESS. . A value of 0.0.0.0 indicates the absence of this address.
ADR pceDiscoveryIPv6Address	1.3.6.1.3.10000.1.1.4.1.4	Ipv6Address	read-only	This object is the IPv6 address to be used to reach the PCE. It corresponds to the PCED PCE-ADDRESS. A value of ::0 indicates the absence of this address.
TIM pceDiscoveryTime	1.3.6.1.3.10000.1.1.4.1.5	TimeStamp	read-only	The value of sysUpTime at the time this entry was created. local entry: the value of sysUpTime at the time the PCC restarted.
TIM pceDiscoveryLastUpdated	1.3.6.1.3.10000.1.1.4.1.6	TimeStamp	read-only	The value of sysUpTime at the time this entry was last updated. Static entry: if the entry values keep unchanged since the re- initialization of the PCC then this object contains a zero value.
T/F pceDiscoveryCongestion	1.3.6.1.3.10000.1.1.4.1.7	TruthValue	read-only	This object indicates whether a PCE experiences a processing congestion state or not.
U32 pceDiscoveryCongestionDuration	1.3.6.1.3.10000.1.1.4.1.8	Unsigned32	read-only	This object specifies, in seconds, the congestion duration. When the value of pceDiscoveryCongestion is 'false' then this objet MUST be to '0'
pceDiscCapabilityObjects	1.3.6.1.3.10000.1.2
pceDiscCapPathScopeTable	1.3.6.1.3.10000.1.2.1		not-accessible	Information describing the capacity of the PCEs discovered.
pceDiscCapPathScopeEntry	1.3.6.1.3.10000.1.2.1.1		not-accessible	Information describing the capacity of each PCE discovered.
T/F pceDiscCapPathScopeIntraArea	1.3.6.1.3.10000.1.2.1.1.1	TruthValue	read-only	Indicates whether the PCE supports the L option of the PATH- SCOPE sub TLV: The value is 'true' if the PCE can compute intra-area path.
T/F pceDiscCapPathScopeInterArea	1.3.6.1.3.10000.1.2.1.1.2	TruthValue	read-only	Indicates whether the PCE supports the R option of the PATH- SCOPE sub TLV: The value is 'true' if the PCE can act as PCE for inter-area TE LSPs computation.
T/F pceDiscCapPathScopeDefInterArea	1.3.6.1.3.10000.1.2.1.1.3	TruthValue	read-only	Indicates whether the PCE supports the Rd option of the PATH- SCOPE sub TLV: The value is 'true' if the PCE can act as a default PCE for inter-area TE LSPs computation.
T/F pceDiscCapPathScopeInterAS	1.3.6.1.3.10000.1.2.1.1.4	TruthValue	read-only	Indicates whether the PCE supports the S option of the PATH- SCOPE sub TLV: The value is 'true' if the PCE can act as PCE for inter-AS TE LSPs computation.
T/F pceDiscCapPathScopeDefInterAS	1.3.6.1.3.10000.1.2.1.1.5	TruthValue	read-only	Indicates whether the PCE supports the Sd option of the PATH- SCOPE sub TLV: The value is 'true' if the PCE can act as a default PCE for inter-AS TE LSPs computation.
T/F pceDiscCapPathScopeInterLayer	1.3.6.1.3.10000.1.2.1.1.6	TruthValue	read-only	Indicates whether the PCE supports the Y option of the PATH- SCOPE sub TLV: The value is 'true' if the PCE can compute or take part into the computation of paths across layers.
I32 pceDiscCapPathScopePrefIntraArea	1.3.6.1.3.10000.1.2.1.1.7	Integer32	read-only	Indicates the level of preference of the option of computation 'L' compared to other computation options: A value of 7 reflects the highest preference. When the value of PceDiscCapCompIntraArea is 'false' then this objet MUST be to '0'.
I32 pceDiscCapPathScopePrefInterArea	1.3.6.1.3.10000.1.2.1.1.8	Integer32	read-only	Indicates the level of preference of the option of computation 'R' compared to other computation options: A value of 7 reflects the highest preference. When the value of PceDiscCapCompInterArea is 'false' then this objet MUST be to '0'.
I32 pceDiscCapPathScopePrefInterAS	1.3.6.1.3.10000.1.2.1.1.9	Integer32	read-only	Indicates the level of preference of the option of computation 'S' compared to other computation options: A value of 7 reflects the highest preference. When the value of PceDiscCapCompInterAS is 'false' then this objet MUST be to '0'.
I32 pceDiscCapPathScopePrefIntLayer	1.3.6.1.3.10000.1.2.1.1.10	Integer32	read-only	Indicates the level of preference of the option of computation 'Y' compared to other computation options: A value of 7 reflects the highest preference. When the value of PceDiscCapCompInterLayer is 'false' then this objet MUST be to '0'.
pceDiscCapDomainTable	1.3.6.1.3.10000.1.2.2		not-accessible	Information describing the set of domains where the PCE has topology visibility and can compute paths.
pceDiscCapDomainEntry	1.3.6.1.3.10000.1.2.2.1		not-accessible	Information describing the domains of each PCE discovered.
I32 pceDiscCapDomainIndex	1.3.6.1.3.10000.1.2.2.1.1	Integer32	not-accessible	This object identifies locally a domain for which the PCE identified by pceDiscoveryIndex has topology visibility and can compute paths.
ADR pceDiscCapDomainIDType	1.3.6.1.3.10000.1.2.2.1.2	AddressFamilyNumbers	read-only	This object identifies the type of the domainID of a PCE- DOMAIN SUB TLV. Acceptable types are : ipV4(1) and ipV6(2) for an OSPF area ID; nsap(3) for and ISIS area ID; asNumber(18) for an BGP AS number
PCE pceDiscCapDomainID	1.3.6.1.3.10000.1.2.2.1.3	PceRoutingDomainID	read-only	The ID (area,AS) of the routing domain for which this entry contains information.
pceDiscCapDestDomainTable	1.3.6.1.3.10000.1.2.3		not-accessible	Information describing the set of destination domains toward which a PCE can compute path.
pceDiscCapDestDomainEntry	1.3.6.1.3.10000.1.2.3.1		not-accessible	Information describing the destination domains of each PCE.
I32 pceDiscCapDestDomainIndex	1.3.6.1.3.10000.1.2.3.1.1	Integer32	not-accessible	This object identifies locally a destination domain toward which a PCE identified by pceDiscoveryIndex can compute path.
ADR pceDiscCapDestDomainIDType	1.3.6.1.3.10000.1.2.3.1.2	AddressFamilyNumbers	read-only	This object identifies the type of the routing domain. Acceptable types are : ipV4(1) and ipV6(2) for an OSPF area ID; nsap(3) for and ISIS area ID; asNumber(18) for an BGP AS number
PCE pceDiscCapDestDomainID	1.3.6.1.3.10000.1.2.3.1.3	PceRoutingDomainID	read-only	The ID (area,AS) of the routing domain for which this entry contains information.
pceDiscComputationOptionsObjects	1.3.6.1.3.10000.1.3
pceDiscComputationOptionsTable	1.3.6.1.3.10000.1.3.1		not-accessible	Information describing options supported by each PCE.
pceDiscComputationOptionsEntry	1.3.6.1.3.10000.1.3.1.1		not-accessible	Information describing the activity of the discovery mechanism of a PCE discovered.
INT pceDiscCompOptionsRpriority	1.3.6.1.3.10000.1.3.1.1.1	INTEGER	read-only	The PCE identified by pceDiscoveryIndex supports for Request prioritization if the value of this object is supported(1).
INT pceDiscCompOptionsMmessages	1.3.6.1.3.10000.1.3.1.1.2	INTEGER	read-only	If the value of this object is supported(1), then the PCE identified by pceDiscoveryIndex supports for multiple messages within the same request message.
pceDiscActivityObjects	1.3.6.1.3.10000.1.4
pceDiscActivityTable	1.3.6.1.3.10000.1.4.1		not-accessible	Information describing for each PCE the activity of the discovery mechanism.
pceDiscActivityEntry	1.3.6.1.3.10000.1.4.1.1		not-accessible	Information describing the activity of the discovery mechanism of a PCE discovered.
I32 pceDiscActivityTlvsRecv	1.3.6.1.3.10000.1.4.1.1.1	Integer32	not-accessible	This object counts the number of TLV received since the discovery of the PCE.
I32 pceDiscActivityErroredTlvsRecv	1.3.6.1.3.10000.1.4.1.1.2	Integer32	not-accessible	This object counts the number of Errored TVL received since the discovery of the PCE.
pceDiscConformance	1.3.6.1.3.10000.2
pceDiscGroups	1.3.6.1.3.10000.2.1
pceDiscCompliances	1.3.6.1.3.10000.2.2
pceDiscGeneralPceInformation	1.3.6.1.3.10000.2.2.1			The compliance statement for SNMP entities that implement only general information monitoring as proposed in the 2nd S. of the section 6.1 of [RFC4674].
pceDiscDetailledPceInformation	1.3.6.1.3.10000.2.2.2			The compliance statement for SNMP entities that implement detailled monitoring as proposed in the 3rd S. of the section 6.1 of [RFC4674].

RFC description

Monitors Path Computation Element (PCE) discovery via OSPF/IS-IS flooding, tracking advertised PCE capabilities and domain scope.

Start monitoring vendor-neutral, standards-based MIB (Path Computation Element discovery) 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 PCE-DISC-STD-MIB

What Is PCE-DISC-STD-MIB?

Supported Devices

Monitoring Examples

This MIB depends on

Related MIBs

RFC description