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19-MPLS-LSR-STD-MIB
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19-MPLS-LSR-STD-MIB 182.35 KB

MPLS-LSR-STD-MIB

About this MIB

A label switching router (LSR) is a router that performs MPLS forwarding. Based on the traditional routing table, LSRs establish label switching paths through a label distribution protocol to perform fast label switching.

MPLS-LSR-STD-MIB is a standard MIB based on RFC 3813.

MIB file name

rfc3813-mpls-lsr-std.mib

Root object

iso(1).org(3).dod(6).internet(1).mgmt(2).mib-2(1).transmission(10).mplsStdMIB(166)

Scalar objects

mplsInSegmentIndexNext (1.3.6.1.2.1.10.166.2.1.3)

Object (OID)

Access

Syntax

Value range

Description

Implementation

mplsInSegmentIndexNext (1.3.6.1.2.1.10.166.2.1.3)

read-only

Octet string

Octet string (0..65535)

Next available index value for LSR incoming labels.

As per the MIB.

 

mplsOutSegmentIndexNext (1.3.6.1.2.1.10.166.2.1.6)

Object (OID)

Access

Syntax

Value range

Description

Implementation

mplsOutSegmentIndexNext (1.3.6.1.2.1.10.166.2.1.6)

read-only

Octet string

Octet string (0..65535)

Next available index value for LSR outgoing labels.

As per the MIB.

 

mplsXCIndexNext (1.3.6.1.2.1.10.166.2.1.9)

Object (OID)

Access

Syntax

Value range

Description

Implementation

mplsXCIndexNext (1.3.6.1.2.1.10.166.2.1.9)

read-only

Octet string

Octet string (0..65535)

Next available index value for cross-connect tables.

As per the MIB.

 

mplsMaxLabelStackDepth (1.3.6.1.2.1.10.166.2.1.11)

Object (OID)

Access

Syntax

Value range

Description

Implementation

mplsMaxLabelStackDepth (1.3.6.1.2.1.10.166.2.1.11)

read-only

Unsigned32

Unsigned32

(0..2147483647)

Maximum allowed label stack depth.

As per the MIB.

 

mplsXCNotificationsEnable (1.3.6.1.2.1.10.166.2.1.15)

Object (OID)

Access

Syntax

Value range

Description

Implementation

mplsXCNotificationsEnable (1.3.6.1.2.1.10.166.2.1.15)

read-write

TruthValue

true(1), false(2)

Whether the notification feature is enabled.

Supports read and write operations.

Default: false(2).

 

Tabular objects

mplsInterfaceTable

About this table

This table contains MPLS capability information about interfaces.

Support for operations

CreateNot supported

Edit/ModifyNot supported

DeleteNot supported

ReadSupported

Columns

The table index is mplsInterfaceIndex.

Object (OID)

Access

Syntax

Value range

Description

Implementation

mplsInterfaceIndex (1.3.6.1.2.1.10.166.2.1.1.1.1)

not-accessible

Interger32

Interger32

(0..2147483647)

Interface index.

0 represents the per-platform label space.

mplsInterfaceLabelMinIn (1.3.6.1.2.1.10.166.2.1.1.1.2)

read-only

Unsigned32

Unsigned32

(0.. 4294967295)

Minimum incoming label of the interface.

Default: 16.

mplsInterfaceLabelMaxIn (1.3.6.1.2.1.10.166.2.1.1.1.3)

read-only

Unsigned32

Unsigned32

(0.. 4294967295)

Maximum incoming label of the interface.

The actually supported value is 1048575.

The default value varies by device models.

mplsInterfaceLabelMinOut (1.3.6.1.2.1.10.166.2.1.1.1.4)

read-only

Unsigned32

Unsigned32

(0.. 4294967295)

Minimum outgoing label of the interface.

Default: 0.

mplsInterfaceLabelMaxOut (1.3.6.1.2.1.10.166.2.1.1.1.5)

read-only

Unsigned32

Unsigned32

(0.. 4294967295)

Maximum outgoing label of the interface.

The actually supported value is 1048575.

Default: 1048575.

mplsInterfaceTotalBandwidth (1.3.6.1.2.1.10.166.2.1.1.1.6)

read-only

Unsigned32

Unsigned32

(0 | 1.. 4294967295)

Total amount of usable bandwidth on this interface in Kbps.

Applies only to TE.

mplsInterfaceAvailableBandwidth (1.3.6.1.2.1.10.166.2.1.1.1.7)

read-only

Unsigned32

Unsigned32

(0 | 1.. 4294967295)

Total amount of available bandwidth on this interface in Kbps.

Applies only to TE.

mplsInterfaceLabelParticipationType (1.3.6.1.2.1.10.166.2.1.1.1.8)

read-only

BITS

perPlatform(0), perInterface(1)

Label space type.

Supports only perPlatform.

 

mplsInterfacePerfTable

About this table

This table contains MPLS performance information about interfaces.

Support for operations

CreateNot supported

Edit/ModifyNot supported

DeleteNot supported

ReadSupported

Columns

This table does not contain indexes.

Object (OID)

Access

Syntax

Value range

Description

Implementation

mplsInterfacePerfInLabelsInUse (1.3.6.1.2.1.10.166.2.1.2.1.1)

read-only

Gauge32

Gauge32

(0..4294967295)

Number of used incoming labels on the interface.

Supports only the read operation.

mplsInterfacePerfInLabelLookupFailures (1.3.6.1.2.1.10.166.2.1.2.1.2)

read-only

Counter32

Counter32

(0..4294967295)

Number of labeled packets that have been received on this interface but were discarded because there was no matching cross-connect entry.

Supports only the read operation.

mplsInterfacePerfOutLabelsInUse (1.3.6.1.2.1.10.166.2.1.2.1.3)

read-only

Gauge32

Gauge32 (0..4294967295)

Number of top-most labels in the outgoing label stacks that are in use on this interface.

Supports only the read operation.

mplsInterfacePerfOutFragmentedPkts (1.3.6.1.2.1.10.166.2.1.2.1.4)

read-only

Counter32

Counter32 (0..4294967295)

Number of outgoing packets that required fragmentation before transmission on this interface.

Supports only the read operation.

 

mplsInSegmentTable

About this table

This table contains incoming label configuration information.

Support for operations

CreateTo create an incoming label, the mplsInSegmentLabel and mplsInSegmentRowStatus objects must be configured together. To create a static CRLSP, set mplsInSegmentTrafficParamPtr to 1.3.6.1.2.1.10.166.3.2.6.1.2.0.

Edit/ModifyAdding and deletion must be performed on a row basis. Editing is not allowed.

DeleteTo delete an incoming label used by a cross-connect, first delete the cross-connect.

ReadSupported

Columns

The table index is mplsInSegmentIndex.

Object (OID)

Access

Syntax

Value range

Description

Implementation

mplsInSegmentIndex (1.3.6.1.2.1.10.166.2.1.4.1.1)

not-accessible

Octet string

Octet string

(1..24)

Incoming label index.

0x00 is invalid.

mplsInSegmentInterface (1.3.6.1.2.1.10.166.2.1.4.1.2)

read-create

Integer32

Integer32

(0..2147483647)

Interface bound to the incoming label.

Supports only the read operation.

mplsInSegmentLabel  (1.3.6.1.2.1.10.166.2.1.4.1.3)

read-create

Unsigned32

Unsigned32

(0.. 4294967295)

Incoming label.

Supports read and write operations.

mplsInSegmentLabelPtr (1.3.6.1.2.1.10.166.2.1.4.1.4)

read-create

RowPointer

RowPointer

Incoming label extension pointer.

If the incoming label cannot be represented fully within the mplsInSegmentLabel object, this object points to an extended table.

Supports only the read operation.

The default value is 0.0, which indicates that this object does not point to any extended tables.

mplsInSegmentNPop (1.3.6.1.2.1.10.166.2.1.4.1.5)

read-create

Integer32

Integer32

(1..2147483647)

Number of labels to pop from the incoming packet.

Supports only the read operation.

Default: 1.

mplsInSegmentAddrFamily (1.3.6.1.2.1.10.166.2.1.4.1.6)

read-create

Integer

other(0),

ipV4(1),

ipV6(2),

nsap(3),

hdlc(4),

bbn1822(5),

all802(6),

e163(7),

e164(8),

f69(9),

x121(10),

ipx(11),

appleTalk(12),

decnetIV(13),

banyanVines(14),

e164withNsap(15),

dns(16),

distinguishedName(17),

asNumber(18),

xtpOverIpv4(19),

xtpOverIpv6(20),

xtpNativeModeXTP(21),

fibreChannelWWPN(22),

fibreChannelWWNN(23),

gwid(24),

reserved(65535)

Address family.

Supports only the read operation.

Supports only IPv4(1) and IPv6(2).

Default: nonvolatile(3).

mplsInSegmentXCIndex (1.3.6.1.2.1.10.166.2.1.4.1.7)

read-only

Octet string

Octet string

(1..24)

Cross-connect index.

0x00 indicates that no corresponding entry exists in the cross-connect table.

mplsInSegmentOwner (1.3.6.1.2.1.10.166.2.1.4.1.8)

read-only

Integer

unknown(1),

other(2),

snmp(3),

ldp(4),

crldp(5),

rsvpTe(6),

policyAgent(7)

Owner of the incoming label.

Supports only the read operation.

mplsInSegmentTrafficParamPtr (1.3.6.1.2.1.10.166.2.1.4.1.9)

read-create

RowPointer

RowPointer

Pointer to the traffic parameter.

The default value is 0.0, which indicates that the incoming label does not point to any table. Valid value represents static CRLSP.

mplsInSegmentRowStatus (1.3.6.1.2.1.10.166.2.1.4.1.10)

read-create

RowStatus

active(1),

notInService(2),

notReady(3),

createAndGo(4),

createAndWait(5),

destroy(6)

Row status.

Supports only active(1), createAndGo(4), and destroy(6).

This object returns active(1).

mplsInSegmentStorageType (1.3.6.1.2.1.10.166.2.1.4.1.11)

read-create

StorageType

other(1),

volatile(2),

nonVolatile(3),

permanent(4),

readOnly(5)

Storage type.

Supports only the read operation.

 

mplsInSegmentPerfTable

About this table

This table contains LDP entity information.

Support for operations

CreateNot supported

Edit/ModifyNot supported

DeleteNot supported

ReadSupported

Columns

The table indexes are mplsLdpEntityLdpId and mplsLdpEntityIndex.

Object (OID)

Access

Syntax

Value range

Description

Implementation

mplsInSegmentPerfOctets (1.3.6.1.2.1.10.166.2.1.5.1.1)

read-only

Counter32

Counter32

(0..4294967295)

Total number of bytes received on this incoming label.

As per the MIB.

mplsInSegmentPerfPackets (1.3.6.1.2.1.10.166.2.1.5.1.2)

read-only

Counter32

Counter32

(0..4294967295)

Total number of packets received on this incoming label.

As per the MIB.

mplsInSegmentPerfErrors (1.3.6.1.2.1.10.166.2.1.5.1.3)

read-only

Counter32

Counter32

(0..4294967295)

Number of error packets received on this incoming label.

As per the MIB.

mplsInSegmentPerfDiscards (1.3.6.1.2.1.10.166.2.1.5.1.4)

read-only

Counter32

Counter32

(0..4294967295)

Number of packets received on this incoming label but were discarded.

As per the MIB.

mplsInSegmentPerfHCOctets (1.3.6.1.2.1.10.166.2.1.5.1.5)

read-only

Counter64

Counter64

(0..18446744073709551615)

Total number of bytes received on this incoming label.

As per the MIB.

mplsInSegmentPerfDiscontinuityTime (1.3.6.1.2.1.10.166.2.1.5.1.6)

read-only

TimeStamp

Standard MIB values.

System time when any one or more of this label's Counter32 or Counter64 suffered a discontinuity most recently.

As per the MIB.

 

mplsOutSegmentTable

About this table

This table contains outgoing label configuration information.

Support for operations

CreateTo create an outgoing label, the mplsOutSegmentInterface, mplsOutSegmentLabel, and mplsOutSegmentRowStatus objects must be configured together.

For the next hop mode, mplsOutSegmentLabel, mplsOutSegmentNextHopAddr, and mplsOutSegmentRowStatus must be configured.

To create a static CRLSP, set mplsOutSegmentTrafficParamPtr to the combination of the OID of mplsTunnelResourceMaxRateand the value of mplsOutSegmentIndex. For example, if the value of mplsOutSegmentIndex is 2048, set mplsOutSegmentTrafficParamPtr to 1.3.6.1.2.1.10.166.3.2.6.1.2.2048.

Edit/ModifyAdding and deletion must be performed on a row basis. Editing is not allowed.

DeleteTo delete an outgoing label used by a cross-connect, first delete the cross-connect.

ReadSupported

Columns

The table index is mplsOutSegmentIndex.

Object (OID)

Access

Syntax

Value range

Description

Implementation

mplsOutSegmentIndex (1.3.6.1.2.1.10.166.2.1.7.1.1)

not-accessible

Octet string

Octet string

(1..24)

Outgoing label index.

0x00 is invalid.

mplsOutSegmentInterface (1.3.6.1.2.1.10.166.2.1.7.1.2)

read-create

Integer32

Integer32 (0..2147483647)

Interface bound to the outgoing label.

Supports read and write operations.

mplsOutSegmentPushTopLabel (1.3.6.1.2.1.10.166.2.1.7.1.3)

read-create

TruthValue

true(1),
false(2)

Whether or not a top label is pushed onto the outgoing packet's label stack.

Supports only the read operation.

mplsOutSegmentTopLabel (1.3.6.1.2.1.10.166.2.1.7.1.4)

read-create

Unsigned32

Unsigned32

(0..4294967295)

Top-most label.

Supports read and write operations.

This object is valid when the value of mplsOutSegmentPushTopLabel is true.

mplsOutSegmentTopLabelPtr (1.3.6.1.2.1.10.166.2.1.7.1.5)

read-create

RowPointer

RowPointer

If the label for this segment cannot be represented fully within the mplsOutSegmentLabel object, this object must point to the first accessible column of a conceptual row in an external table containing the label.

Supports only the read operation.

The default value is 0.0, which indicates that the outgoing label does not point to any extended table.

mplsOutSegmentNextHopAddrType (1.3.6.1.2.1.10.166.2.1.7.1.6)

read-create

Integer:unknown(0),ipv4(1),ipv6(2)

unknown(0),
ipv4(1),
ipv6(2),
ipv4z(3),
ipv6z(4),
dns(16)

Next hop address type.

Supports only the read operation.

mplsOutSegmentNextHopAddr (1.3.6.1.2.1.10.166.2.1.7.1.7)

read-create

Octet string

Octet string

(0..255)

Next hop address.

Supports read and write operations.

mplsOutSegmentXCIndex (1.3.6.1.2.1.10.166.2.1.7.1.8)

read-only

Octet string

Octet string

(1..24)

Cross-connect index.

0x00 indicates that no corresponding entry exists in the cross-connect table.

mplsOutSegmentOwner (1.3.6.1.2.1.10.166.2.1.7.1.9)

read-only

Integer

unknown(1),
other(2),
snmp(3),
ldp(4),
crldp(5),
rsvpTe(6),
policyAgent(7)

Owner of the outgoing label.

As per the MIB.

mplsOutSegmentTrafficParamPtr (1.3.6.1.2.1.10.166.2.1.7.1.10)

read-create

RowPointer

RowPointer

Traffic parameter pointer.

Supports only the read operation.

The default value is 0.0, which indicates that the outgoing label does not point to any table. The valid value represents static CRLSP and points to mplsTunnelResourceTable

mplsOutSegmentRowStatus (1.3.6.1.2.1.10.166.2.1.7.1.11)

read-create

RowStatus

active(1),
notInService(2),
notReady(3),
createAndGo(4),
createAndWait(5),
destroy(6)

Row status.

Supports only active(1), createAndGo(4), and destroy(6).

This object returns active(1).

mplsOutSegmentStorageType (1.3.6.1.2.1.10.166.2.1.7.1.12)

read-create

StorageType

other(1),
volatile(2),
nonVolatile(3),
permanent(4),
readOnly(5)

Storage type.

Supports only the read operation.

 

mplsOutSegmentPerfTable

About this table

This table contains outgoing label performance table information.

Support for operations

CreateNot supported

Edit/ModifyNot supported

DeleteNot supported

ReadSupported

Columns

The table indexes are mplsLdpEntityLdpId and mplsLdpEntityIndex.

Object (OID)

Access

Syntax

Value range

Description

Implementation

mplsOutSegmentPerfOctets (1.3.6.1.2.1.10.166.2.1.8.1.1)

read-only

Counter32

Counter32

 (0..4294967295)

Total number of bytes sent on this outgoing label.

As per the MIB.

mplsOutSegmentPerfPackets (1.3.6.1.2.1.10.166.2.1.8.1.2)

read-only

Counter32

Counter32

(0..4294967295)

Total number of packets sent on this outgoing label.

As per the MIB.

mplsOutSegmentPerfErrors (1.3.6.1.2.1.10.166.2.1.8.1.3)

read-only

Counter32

Counter32

 (0..4294967295)

Number of packets failed to be sent because of outgoing label error.

As per the MIB.

mplsOutSegmentPerfDiscards (1.3.6.1.2.1.10.166.2.1.8.1.4)

read-only

Counter32

Counter32

 (0..4294967295)

Number of packets sent on this outgoing label but were discarded.

As per the MIB.

mplsOutSegmentPerfHCOctets (1.3.6.1.2.1.10.166.2.1.8.1.5)

read-only

Counter64

Counter64

(0..18446744073709551615)

Total number of bytes sent on this outgoing label.

As per the MIB.

mplsOutSegmentPerfDiscontinuityTime (1.3.6.1.2.1.10.166.2.1.8.1.6)

read-only

TimeStamp

Standard MIB values.

Value of sysUpTime on the most recent occasion at which any one or more of this outgoing label's Counter32 or Counter64 suffered a discontinuity.

As per the MIB.

 

mplsXCTable

About this table

This table contains cross-connect table information.

Support for operations

CreateTo create a static CRLSP, first create an mplsTunnelResourceTable object. The object index is the same as the value of mplsXCOutSegmentIndex.

To create an ingress LSP or transit LSP, mplsXCIndex must be consistent with mplsXCOutSegmentIndex.

Edit/ModifySupported

DeleteSupported

ReadSupported

Columns

The table indexes are mplsXCIndex, mplsXCInSegmentIndex, and mplsXCOutSegmentIndex.

Object (OID)

Access

Syntax

Value range

Description

Implementation

mplsXCIndex (1.3.6.1.2.1.10.166.2.1.10.1.1)

not-accessible

Octet string

Octet string

(1..24)

Cross-connect index.

0x00 is invalid.

mplsXCInSegmentIndex (1.3.6.1.2.1.10.166.2.1.10.1.2)

not-accessible

Octet string

Octet string

(1..24)

Incoming label index.

0x00 indicates that no corresponding incoming label exists and the LSR is an ingress LSR.

mplsXCOutSegmentIndex (1.3.6.1.2.1.10.166.2.1.10.1.3)

not-accessible

Octet string

Octet string

(1..24)

Outgoing label index.

0x00 indicates that no corresponding outgoing label exists and the LSR is an egress LSR.

mplsXCLspId (1.3.6.1.2.1.10.166.2.1.10.1.4)

read-create

Octet string

Octet string

(2 | 6)

LSP ID.

Supports only the read operation.

mplsXCOwner (1.3.6.1.2.1.10.166.2.1.10.1.6)

read-only

Integer

unknown(1),
other(2),
snmp(3),
ldp(4),
crldp(5),
rsvpTe(6),
policyAgent(7)

Owner.

As per the MIB.

mplsXCRowStatus (1.3.6.1.2.1.10.166.2.1.10.1.7)

read-create

RowStatus

active(1),
notInService(2),
notReady(3),
createAndGo(4),
createAndWait(5),
destroy(6)

Row status.

Supports only active(1), createAndGo(4), and destroy(6).

This object returns active(1).

mplsXCStorageType (1.3.6.1.2.1.10.166.2.1.10.1.8)

read-create

StorageType

other(1),
volatile(2),
nonVolatile(3),
permanent(4),
readOnly(5)

Storage type.

Supports only the read operation.

mplsXCAdminStatus (1.3.6.1.2.1.10.166.2.1.10.1.9)

read-create

Integer:

up(1),
down(2),
testing(3)

Administrative state.

Supports only the read operation.

mplsXCOperStatus (1.3.6.1.2.1.10.166.2.1.10.1.10)

read-only

Integer

up(1),down(2),testing(3),unknown(4),dormant(5),notPresent(6),lowerLayerDown(7)

Operational state.

As per the MIB.

 

mplsInSegmentMapTable

About this table

This table contains incoming label mapping table information.

Support for operations

CreateNot supported

Edit/ModifyNot supported

DeleteNot supported

ReadSupported

Columns

The table indexes are mplsInSegmentMapInterface, mplsInSegmentMapLabel, and mplsInSegmentMapLabelPtrIndex.

Object (OID)

Access

Syntax

Value range

Description

Implementation

mplsInSegmentMapInterface (1.3.6.1.2.1.10.166.2.1.14.1.1)

not-accessible

Integer32

Integer32

(0..2147483647)

Ingress interface.

As per the MIB.

mplsInSegmentMapLabel (1.3.6.1.2.1.10.166.2.1.14.1.2)

not-accessible

Unsigned32

Unsigned32

(0..4294967295)

Incoming label.

As per the MIB.

mplsInSegmentMapLabelPtrIndex (1.3.6.1.2.1.10.166.2.1.14.1.3)

not-accessible

RowPointer

RowPointer

Incoming label extension pointer.

If the incoming label cannot be represented fully within the mplsInSegmentMapLabel object, this object points to an extended table.

0.0 indicates that this object does not point any extended tables.

mplsInSegmentMapIndex (1.3.6.1.2.1.10.166.2.1.14.1.4)

read-only

Octet string

Octet string

(1..24)

Incoming label index.

As per the MIB.

 

Notifications

mplsXCUp

Basic information

OID

Event

Type

Severity

Recovery notification

Default status

1.3.6.1.2.1.10.166.2.0.1

mplsXCup

Informational

Major

N/A (N/A)

ON

 

Notification triggers

This notification is generated when the MPLSXC state (mplsXCOperStatus) of a tunnel (such as LDP tunnel or MPLS TE tunnel) changes to UP.

System impact

No negative impact on services.

Status control

ON

CLI: Use the snmp-agent trap enable te command.

OFF

CLI: Use the undo snmp-agent trap enable te command.

Object

OID (object name)

Description

Index

Type

Value range

1.3.6.1.2.1.10.166.2.1.10.1.9 (mplsXCAdminStatus)

Operational status of the label.

mplsXCIndex

mplsXCInSegmentIndex

mplsXCOutSegmentIndex

INTEGER

up(1) , down(2) , testing(3)

1.3.6.1.2.1.10.166.2.1.10.1.10 (mplsXCOperStatus)

Actual operational status of the cross-connect.

mplsXCIndex

mplsXCInSegmentIndex

mplsXCOutSegmentIndex

INTEGER

up(1) , down(2) ,  testing(3) , unknown(4) , dormant(5) , notPresent(6) , lowerLayerDown(7)

 

Recommended action

No action is required.

mplsXCDown

Basic information

OID

Event

Type

Severity

Recovery notification

Default status

1.3.6.1.2.1.10.166.2.0.2

A cross-connect enters down state.

Error

Major

1.3.6.1.2.1.10.166.2.0.1 (mplsXCUp)

ON

 

Notification triggers

This notification is generated when the MPLSXC state (mplsXCOperStatus) of a tunnel (such as LDP tunnel or MPLS TE tunnel) changes to down.

Possible causes:

MPLS is disabled on the interfaces that the tunnel passes through.

A protocol fault occurs on the tunnel. For example, LDP is disabled globally or on the interfaces that the tunnel passes through.

A fault occurs on the path that the tunnel passes through.

Dependent routes of the tunnel have been withdrawn.

The tunnel is switched to a new path and the new path has problem 1 or 2.

System impact

Service traffic carried on the tunnel will be interrupted.

Status control

ON

CLI: Use the snmp-agent trap enable te command.

OFF

CLI: Use the undo snmp-agent trap enable te command.

Object

OID (object name)

Description

Index

Type

Value range

1.3.6.1.2.1.10.166.2.1.10.1.9 (mplsXCAdminStatus)

Operational status of the label.

mplsXCIndex

mplsXCInSegmentIndex

mplsXCOutSegmentIndex

INTEGER

up(1) , down(2) , testing(3)

1.3.6.1.2.1.10.166.2.1.10.1.10 (mplsXCOperStatus)

Actual operational status of the cross-connect.

mplsXCIndex

mplsXCInSegmentIndex

mplsXCOutSegmentIndex

INTEGER

up(1) , down(2) ,  testing(3) , unknown(4) , dormant(5) , notPresent(6) , lowerLayerDown(7)

 

Recommended action

To resolve this issue, perform the following tasks using the protocol, tunnel destination address, outgoing interface/next hop and outgoing label information in the mplsXCDown notification message.

1.Check routes: Execute the display ip routing-table command or the display ipv6 routing-tablecommand to view whether the route corresponding to the tunnel destination address exists.

  - If the route does not exist, configure a proper routing protocol to generate a route to the tunnel destination address. Check whether an mplsXCUp notification is generated. If yes, the issue is resolved. If no, go to step 2.

  - If the route exists, go to step 2.

2.According to the outgoing interface/next hop information, execute the display mpls interface command to identify whether the outgoing interface is enabled with MPLS.

  - If the interface is not enabled with MPLS, execute the mpls enable command on the interface. Check whether an mplsXCUp notification is generated. If yes, the issue is resolved. If no, go to step 3.

  - If the interface is enabled with MPLS, go to step 3.

3.According to the tunnel protocol information, check the protocol capabilities on the interface. Take an LDP tunnel as an example. Execute the display mpls ldp interface command to check whether LDP is enabled on the outgoing interface.

  - If LDP is not enabled, execute the mpls ldp command in system view to enable LDP globally and the mpls ldp enable command in interface view to enable LDP on the interface. Check whether an mplsXCUp notification is generated. If yes, the issue is resolved. If no, go to step 4.

  - If LDP is enabled globally and on the outgoing interface, go to step 4.

4.According to the route in step 1, find the next hop. Execute step 1 through step 3 on the next hop device. Repeat this step to troubleshoot all the nodes that the tunnel passes until the issue is resolved.

5.If the issue persists, contact H3C Support.

 

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