MPLS-CEM-MIB
This MIB contains managed object definitions for Circuit Emulation over MPLS as in: Malis, A., Vogelsang, S., and
Martini, L. 'SONET/SDH Circuit Emulation Service Over MPLS (CEM) encapsulation', Internet Draft <draft-malis-sonet- ces-mpls-02.txt>, February 2001. This MIB is dependant on the MIBs as defined by T. Nadeau, C. Srinivasan, and A. Viswanathan <draft-ietf-mpls-lsr-mib-07.txt> and <draft-ietf-mpls-te-mib-05.txt>
Main OID:
mplsCemMIB.1.3.6.1.3.9999
102
Objects
Active
Status
6
Dependencies
Imported Objects
Objects
102 total| Object Name |
|---|
mplsCemMIBThis MIB contains managed object definitions for Circuit
Emulation over MPLS as in: Malis, A., Vogelsang, S., and
Martini, L. 'SONET/SDH Circuit Emulation Service Over MPLS
(CEM) encapsulation', Internet Draft <draft-malis-sonet-
ces-mpls-02.txt>, February 2001. This MIB is dependant on
the MIBs as defined by T. Nadeau, C. Srinivasan, and A.
Viswanathan <draft-ietf-mpls-lsr-mib-07.txt> and
<draft-ietf-mpls-te-mib-05.txt> MODULE-IDENTITY .1.3.6.1.3.9999 |
mplsCemNotifications OBJECT IDENTIFIER .1.3.6.1.3.9999.0 |
mplsCemNotifyPrefix OBJECT IDENTIFIER .1.3.6.1.3.9999.0.0 |
mplsCemVcUpThis notification is generated when a
mplsCemVcOperStatus object for one of the configured
CEM VC entries is about to leave the down state and
transition into some other state (but not into the
notPresent state). This other state is indicated by
the included value of mplsCemVcOperStatus. NOTIFICATION-TYPE .1.3.6.1.3.9999.0.0.1 |
mplsCemVcDownThis notification is generated when a
mplsCemVcOperStatus object for one of the configured
CEM VC entries is about to enter the down state and
transition into some other state (but not from the
notPresent state). This other state is indicated by
the included value of mplsCemVcOperStatus. NOTIFICATION-TYPE .1.3.6.1.3.9999.0.0.2 |
mplsCemVcApsFromThis notification is generated when the CEM VC APS
mechanism has initiated a switch from the specified
Index/Instance to find a 'good' CEM VC within the same
group. To reduce the number of Traps, it is recommended
to only generate mplsCemVcApsFrom when first initiating
attempt to find a good CEM VC instance. That is, do not
generate Traps if the APS mechanism is continuing to
switch looking for an CEM VC group member that is good. NOTIFICATION-TYPE .1.3.6.1.3.9999.0.0.3 |
mplsCemVcApsToThis notification is generated when the CEM VC APS
mechanism has switched to and settled on a CEM VC Index
and Instance that is 'good' (whether from a bad VC or
when reverting). NOTIFICATION-TYPE .1.3.6.1.3.9999.0.0.4 |
mplsCemObjects OBJECT IDENTIFIER .1.3.6.1.3.9999.1 |
mplsCemVcIndexNextThis object contains an appropriate value to be used
for mplsCemVcIndex when creating entries in the
mplsCemVcTable. The value 0 indicates that no
unassigned entries are available. To obtain the
value of mplsCemVcIndex for a new entry in the
mplsCemVcTable, the manager issues a management
protocol retrieval operation to obtain the current
value of mplsCemVcIndex. After each retrieval
operation, the agent should modify the value to
reflect the next unassigned index. After a manager
retrieves a value the agent will determine through
its local policy when this index value will be made
available for reuse.ro Unsigned32 .1.3.6.1.3.9999.1.1 |
mplsCemVcTableThis table specifies information for connecting
SONET paths and MPLS Tunnels. SEQUENCE OF MplsCemVcEntry .1.3.6.1.3.9999.1.2 |
mplsCemVcEntryA row in this table represents a connection for CEM. It
is indexed by :
- The mplsCemVcIndex. Uniquely identifying a singular
CEM connection or a group. If a group, individual CEM
connections are identified by the Instance.
- The mplsCemVcInstance. MplsCemVcEntry .1.3.6.1.3.9999.1.2.1 |
mplsCemVcIndexPrimary index for the conceptual row identifying
a group of CEM VCs.ro Unsigned32 .1.3.6.1.3.9999.1.2.1.1 |
mplsCemVcInstanceUniquely identifies an instance of a CEM VC. It is
useful to identify multiple instances for the purpose of
backup VCs.ro Unsigned32 .1.3.6.1.3.9999.1.2.1.2 |
mplsCemVcSonetPathIfIndexThis is a unique index within the ifTable. It represents
the interface index for the SONET path. A value of zero
indicates an ifIndex that has yet to be configured or
has since disappeared.ro InterfaceIndexOrZero (IF-MIB) .1.3.6.1.3.9999.1.2.1.3 |
mplsCemVcLabelThe incoming and outgoing label for this VC. This
value is placed in the Label field of the outgoing MPLS
shim header.ro MplsLabel (MPLS-LSR-MIB) .1.3.6.1.3.9999.1.2.1.4 |
mplsCemVcPriorityUsed when resources on a tunnel or backup tunnel are
overbooked. The agent (connection admission control) can
sort CEM VC entries that share an overbooked tunnel.
Lower mplsCemVcPriority values have higher priority.
VCs dropped will be set 'dormant' (as indicated in
mplsCemVcOperStatus).rw Unsigned32 .1.3.6.1.3.9999.1.2.1.5 |
mplsCemVcNameThe canonical name assigned to the CEM VC. This
name can be used to refer to the CEM VC on the
LSRs console port.rw DisplayString (SNMPv2-TC) .1.3.6.1.3.9999.1.2.1.6 |
mplsCemVcDescrA textual string containing information about the
CEM VC. If there is no description this object
contains a zero length string.rw DisplayString (SNMPv2-TC) .1.3.6.1.3.9999.1.2.1.7 |
mplsCemVcCreateTimeSystem time when theis CEM VC was created.rw TimeStamp (SNMPv2-TC) .1.3.6.1.3.9999.1.2.1.8 |
mplsCemVcUpTimeNumber of consecutive ticks this CEM VC has been 'up'
as observed in mplsCemVcOperStatus.ro TimeTicks (SNMPv2-SMI) .1.3.6.1.3.9999.1.2.1.9 |
mplsCemVcInTunnelIndexPart of set of indexes for inbound tunnelrw MplsTunnelIndex .1.3.6.1.3.9999.1.2.1.10 |
mplsCemVcInTunnelInstancePart of set of indexes for inbound tunnelrw MplsTunnelInstanceIndex .1.3.6.1.3.9999.1.2.1.11 |
mplsCemVcInTunnelIngLSRPart of set of indexes for inbound tunnelrw MplsLsrId .1.3.6.1.3.9999.1.2.1.12 |
mplsCemVcInTunnelLclLSRPart of set of indexes for inbound tunnelrw MplsLsrId .1.3.6.1.3.9999.1.2.1.13 |
mplsCemVcOutTunnelIndexPart of set of indexes for outbound tunnelrw MplsTunnelIndex .1.3.6.1.3.9999.1.2.1.14 |
mplsCemVcOutTunnelInstancePart of set of indexes for outbound tunnelrw MplsTunnelInstanceIndex .1.3.6.1.3.9999.1.2.1.15 |
mplsCemVcOutTunnelLclLSRPart of set of indexes for outbound tunnelrw MplsLsrId .1.3.6.1.3.9999.1.2.1.16 |
mplsCemVcOutTunnelEgrLSRPart of set of indexes for outbound tunnelrw MplsLsrId .1.3.6.1.3.9999.1.2.1.17 |
mplsCemVcPktLengthThis is the packet or payload length for this CEM
VC. It is fixed and applies to inbound and
outbound packets carrying user payload. Note: DBA
packets have their own length and are not effected
by this.rw Unsigned32 .1.3.6.1.3.9999.1.2.1.18 |
mplsCemVcExpBitsThis value is placed in the EXP bit field of the
outbound MPLS shim header (with the VC Label). These
EXP bits convey to the LSR the PHB to be applied to
these packets.rw Unsigned32 .1.3.6.1.3.9999.1.2.1.19 |
mplsCemVcPktResequenceReports if implementation provides packet re-sequencing.
With this, as inbound packets are queued in the jitter
buffer, out of order packets are re-sequenced. The
maximum sequence number differential (order correction
can occur within) is dependant on the depth of the
jitter buffer. See mplsCemVcJtrBfrDepth.ro TruthValue (SNMPv2-TC) .1.3.6.1.3.9999.1.2.1.20 |
mplsCemVcEnableDBAAny bits set here MUST enable the DBA (dynamic bandwidth
allocation) feature for the specified condition. Setting
allOnesOnAis will cause CEM packet payload suppression
when AIS is detected on the associated SONET path.
Similarly, allZerosOnUnequipped will cause payload
suppression when the SONET path is un-equipped. During
these conditions, CEM packets will continue to be sent,
but with indicators set in the CEM header instructing the
remote to play all ones or zeros onto its SONET path.
Note: some implementations may not support this feature.rw Bits .1.3.6.1.3.9999.1.2.1.21 |
mplsCemVcJtrBfrDepthThis setting configures the number of packet buffers
reserved for this CEM VC. (This object would not apply
in implementations that support CEM VC groups, but
cannot process inbound packets on CEM VCs that are
currently in standby.) This object essentially sets
the maximum amount of time allowed between CEM packets
before the jitter buffer empties. This variable should
be set based on the SONET path width (speed) and the
amount of delay variation expected to be introduced by
the network. Like bandwidth, jitter buffers are likely
to be a limited resource to be managed.rw Unsigned32 .1.3.6.1.3.9999.1.2.1.22 |
mplsCemVcErrorActionThese are the actions to take when inbound packets are
missing due to gap in sequence numbers (uncorrectable via
available re-sequencing), jitter buffer underruns, or
packets with bad CEM headers. These patterns are sent
(played) on the SONET path. These settings are used for
immediate errors and (unless the mplsCemVcDownAction is
'none') are not in effect once the CEM VC is 'down'.rw Enumeration .1.3.6.1.3.9999.1.2.1.23 |
mplsCemVcDownActionThese are the actions to take once the CEM VC has been
declared 'down' (as observed in mplsCemVcOperStatus).
These patterns are sent (played) on the SONET path.
See Integration Timers for events causing CEM VC 'down'.
If 'errorAction' is selected, then the mplsCemVcErrorAction
settings stay in effect even after the CEM VC is 'down'.rw Enumeration .1.3.6.1.3.9999.1.2.1.24 |
mplsCemVcIntegrateToDown1See comment above - units are microseconds.rw Unsigned32 .1.3.6.1.3.9999.1.2.1.25 |
mplsCemVcIntegrateToDown2See comment above - units are microseconds.rw Unsigned32 .1.3.6.1.3.9999.1.2.1.26 |
mplsCemVcIntegrateToUp1See comment above - units are microseconds.rw Unsigned32 .1.3.6.1.3.9999.1.2.1.27 |
mplsCemVcIntegrateToUp2See comment above - units are microseconds.rw Unsigned32 .1.3.6.1.3.9999.1.2.1.28 |
mplsCemVcApsEnableEnables this CEM VC (as part of a group) to be used for
APS. A CEM VC group is created when a unique CEM VC index
(in mplsCemVcTable) has multiple instances. Setting
mplsCemVcApsEnable to 'false' may be useful when a CEM VC
is suspect, being debugged, or not fully configured.
Note: some implementations may not support APS.rw TruthValue (SNMPv2-TC) .1.3.6.1.3.9999.1.2.1.29 |
mplsCemVcApsCriteriaBits set here represent defects and modes for switching
the SONET path from the active CEM VC to another within
this VC's group. Defects include: CEM errors (jitter
buffer errors, missing packets, bad CEM headers).
Separating these CEM defects into individually selectable
bits, or adding other types of defect indications (e.g.
OAM status) is for future study.
Modes:
The 'cemErrorStbyOK' mode setting is useful in APS network
configurations where CEM traffic is not present on standby
inbound VCs. Therefore they are expected to have CEM
errors, but are still to be considered as viable switch-
over candidates. cemErrorStbyOK essentially masks CEM
errors when this CEM VC is in standby.
'revertive' mode is useful for non-preferred CEM VCs where
you may want to switch back to a preferred VC that has no
defects while the currently active VC also has no defects
(see mplsCemVcApsRevertTimer). 'revertive' should NOT be
used when standby VCs have no defect indications available.
If 'revertive' is not set, then manual reversion is possible
by simply setting the active CEM VC's admin status 'down',
then 'up'. Preferred should NOT have 'revertive' set.
'hunt' mode is useful when standby VCs offer no defect
indications (see mplsCemVcApsHoldOffTimer). 'hunt' should
not be used when standby VCs have available defect
indications. Hunting assumes standby VCs are good, if not
the down timers will determine it's bad, and hunting
continues.
'hunt' and 'revertive' are mutually exclusive.rw Bits .1.3.6.1.3.9999.1.2.1.30 |
mplsCemVcDefectsCurrent state of these CEM VC defects. The cemError
indicator is a summary of any error associated with
processing inbound CEM packets. Separately displaying
CEM errors types (buffer errors, missing packets, and
header errors) are for future study. Also other bits
here may be defined here to show results of error trend
analysis. These bits MUST be aligned with
mplsCemVcApsCriteria bits so mplsCemVcApsCriteria can
be used as a mask.
Note: other defect indications (e.g. from OAM) are for
future study.ro Bits .1.3.6.1.3.9999.1.2.1.31 |
mplsCemVcApsHoldoffTimerUsed to hold-off an APS switch after the CEM VC has been
determined 'down'. The purpose is to allow potential
recovery schemes within lower communications layers a
chance to recover.
Also useful in 'hunt' mode to hold off switching to the
next CEM VC (slows oscillation when all VCs are down).rw Unsigned32 .1.3.6.1.3.9999.1.2.1.32 |
mplsCemVcApsRevertTimerIf this CEM VC is active and 'up', then this timer is
used in conjunction with 'revertive' (if set above).
The reversion would be delayed for this time.rw Unsigned32 .1.3.6.1.3.9999.1.2.1.33 |
mplsCemVcApsStatusIf part of a CEM VC group, this indicates if the
CEM VC has been selected (via APS algorithm/protocol)
to connect the associated Tunnel to the SONET path.
If not part of a group, then always 'active'.ro Enumeration .1.3.6.1.3.9999.1.2.1.34 |
mplsCemVcLdpVcIdLengthFor use by LDP signalingrw Unsigned32 .1.3.6.1.3.9999.1.2.1.35 |
mplsCemVcLdpGroupIdFor use by LDP signalingrw Unsigned32 .1.3.6.1.3.9999.1.2.1.36 |
mplsCemVcLdpOptParam1For use by LDP signalingrw Unsigned32 .1.3.6.1.3.9999.1.2.1.37 |
mplsCemVcLdpOptParam2For use by LDP signalingrw Unsigned32 .1.3.6.1.3.9999.1.2.1.38 |
mplsCemVcTrapEnableIf this object is true, generation of mplsCemVcUp
and mplsCemVcDown traps aare enabled for this CEM VC,
otherwise these traps are not emitted.rw TruthValue (SNMPv2-TC) .1.3.6.1.3.9999.1.2.1.39 |
mplsCemVcAdminStatusThe desired operational status of this CEM VC.rw Enumeration .1.3.6.1.3.9999.1.2.1.40 |
mplsCemVcOperStatusIndicates the actual operational status of this CEM VC.ro Enumeration .1.3.6.1.3.9999.1.2.1.41 |
mplsCemVcRowStatusFor creating, modifying, and deleting this row.rw RowStatus (SNMPv2-TC) .1.3.6.1.3.9999.1.2.1.42 |
mplsCemVcStorageTypeThis variable indicates the storage type for this
object.rw StorageType (SNMPv2-TC) .1.3.6.1.3.9999.1.2.1.43 |
mplsCemVcPerfTableThis table provides per CEM VC performance information.
Note: outbound errors are not being considered. It is
assumed (at this time) that CEM packets will be forwarded
as they are generated. i.e., it is assumed that there
are no local outbound packet congestion issues. HC (high
capacity) counters are needed for packet counts due to
the high speeds expected with CEM. A SONET path of width
48 can rollover a non-HC counter in a few minutes. SEQUENCE OF MplsCemVcPerfEntry .1.3.6.1.3.9999.1.3 |
mplsCemVcPerfEntryAn entry in this table is created by the agent for every
mplsCemVcEntry. It is an extension to mplsCemVcEntry. MplsCemVcPerfEntry .1.3.6.1.3.9999.1.3.1 |
mplsCemVcPerfTotalInPacketsHCNumber of inbound packets received.ro Counter64 .1.3.6.1.3.9999.1.3.1.1 |
mplsCemVcPerfTotalOutPacketsHCNumber of outbound packets sent.ro Counter64 .1.3.6.1.3.9999.1.3.1.2 |
mplsCemVcPerfDbaInPacketsHCNumber of DBA packets received.ro Counter64 .1.3.6.1.3.9999.1.3.1.3 |
mplsCemVcPerfDbaOutPacketsHCNumber of DBA packets sent.ro Counter64 .1.3.6.1.3.9999.1.3.1.4 |
mplsCemVcPerfInNegPtrAdjustHCNumber of negative pointer adjustments made on the
SONET path based on CEM pointer adjustments received.ro Counter64 .1.3.6.1.3.9999.1.3.1.5 |
mplsCemVcPerfInPosPtrAdjustHCNumber of postive pointer adjustments made on the
SONET path based on CEM pointer adjustments received.ro Counter64 .1.3.6.1.3.9999.1.3.1.6 |
mplsCemVcPerfOutNegPtrAdjustHCNumber of negative pointer adjustments seen on the
SONET path and encoded onto sent CEM packets.ro Counter64 .1.3.6.1.3.9999.1.3.1.7 |
mplsCemVcPerfOutPosPtrAdjustHCNumber of positive pointer adjustments seen on the
SONET path and encoded onto sent CEM packets.ro Counter64 .1.3.6.1.3.9999.1.3.1.8 |
mplsCemVcPerfCrctHdrErrorsNumber of correctable CEM header errors detected on
inbound CEM packets.ro Counter32 .1.3.6.1.3.9999.1.3.1.9 |
mplsCemVcPerfUncrctHdrErrorsNumber of uncorrectable CEM header errors detected on
inbound CEM packets.ro Counter32 .1.3.6.1.3.9999.1.3.1.10 |
mplsCemVcPerfMissingPktsNumber of missing packets (as detected via CEM header
sequence number gaps).ro Counter32 .1.3.6.1.3.9999.1.3.1.11 |
mplsCemVcPerfPktsOoseqNumber of packets detected out of sequence (via CEM
header sequence numbers), but were able to be re-sequenced.
That is, the differential in sequence numbers was less
than the jitter buffer depth. Note: some implementations
may not support this feature (see mplsCemVcPktResequence).
Any packets so far out of sequence that a re-sequencer
can not correct for would be counted as missing packet.ro Counter32 .1.3.6.1.3.9999.1.3.1.12 |
mplsCemVcPerfJtrBfrUnderrunsNumber of times the jitter buffer transitioned to empty.ro Counter32 .1.3.6.1.3.9999.1.3.1.13 |
mplsCemVcPerfJtrBfrOverrunsNumber of packets received while jitter buffer is full.ro Counter32 .1.3.6.1.3.9999.1.3.1.14 |
mplsCemVcPerfDiscontinuityTimeThe value of sysUpTime on the most recent occasion at
which any one or more of this segment's Counter32 or
Counter64 suffered a discontinuity. If no such
discontinuities have occurred since the last re-
initialization of the local management subsystem, then
this object contains a zero value.ro TimeStamp (SNMPv2-TC) .1.3.6.1.3.9999.1.3.1.15 |
mplsCemMappingTableThis table maps an inbound Tunnel/VcLabel to a CEM VC. SEQUENCE OF MplsCemMappingEntry .1.3.6.1.3.9999.1.4 |
mplsCemMappingEntryA row in this table represents the inbound connection
between a Tunnel/VcLabel and CEM VC/instance. It is
indexed by the same 4 indexes that index the inbound
Tunnel, then adds the VC Label as a 5th index. The Tunnel
referenced here is in the mplsTunnelTable.
- The mplsCemMappingInTunnelIndex uniquely identifies a
singular Tunnel or a group. If a group, individual
Tunnels are identified by the Instance.
- The mplsCemMappingInTunnelInstance.
- ID (normally an IP address) for the ingress LSR,
mplsCemMappingInTunnelIngressLSR.
- ID (normally an IP address) of the Local (egress) LSR,
mplsCemMappingInTunnelLocalLSR,
- and the VC Label, mplsCemMappingVcLabel. MplsCemMappingEntry .1.3.6.1.3.9999.1.4.1 |
mplsCemMappingInTunnelIndexPrimary index for the conceptual row identifying
a group of Tunnel/VcLabel to CEM VC mappings.ro MplsTunnelIndex .1.3.6.1.3.9999.1.4.1.1 |
mplsCemMappingInTunnelInstanceUniquely identifies an instance of a mappingro MplsTunnelInstanceIndex .1.3.6.1.3.9999.1.4.1.2 |
mplsCemMappingInTunnelIngressLSRUniquely identifies an ingress LSRro MplsLsrId .1.3.6.1.3.9999.1.4.1.3 |
mplsCemMappingInTunnelLocalLSRUniquely identifies the local LSRro MplsLsrId .1.3.6.1.3.9999.1.4.1.4 |
mplsCemMappingVcLabelIdentifies a unique label on this tunnelro MplsLabel (MPLS-LSR-MIB) .1.3.6.1.3.9999.1.4.1.5 |
mplsCemMappingVcIndexIndex for entry (or group of entries, in the case of backup
VCs) in the mplsCemVcTable. This value can also be thought
of as the Circuit ID.rw Integer32 .1.3.6.1.3.9999.1.4.1.6 |
mplsCemMappingVcInstanceIdentifies a unique member within a CEM VC group.
(This could of course be a group of one.)rw Integer32 .1.3.6.1.3.9999.1.4.1.7 |
mplsCemMappingRowStatusFor creating, modifying, and deleting this row.rw RowStatus (SNMPv2-TC) .1.3.6.1.3.9999.1.4.1.8 |
mplsCemMappingStorageTypeThis variable indicates the storage type for this
object.rw StorageType (SNMPv2-TC) .1.3.6.1.3.9999.1.4.1.9 |
mplsCemTunnelExtTableThis table is an extension to the mplsTunnelTable. This
table exists to configure parameters useful for CEM APS. SEQUENCE OF MplsCemTunnelExtEntry .1.3.6.1.3.9999.1.5 |
mplsCemTunnelExtEntryA row in this table represents a Tunnel used for CEM VCs.
The Tunnel referenced here is in the mplsTunnelTable.
It is indexed by the same 4 indexes of the inbound Tunnel:
- The mplsCemTunnelExtIndex uniquely identifies a
singular Tunnel or a group. If a group, individual
Tunnels are identified by the Instance.
- The mplsCemTunnelExtInstance.
- ID (normally an IP address) for the ingress LSR,
mplsCemTunnelExtIngressLSR.
- ID (normally an IP address) of the Local (egress) LSR,
mplsCemTunnelExtLocalLSR. In the mplsTunnelTable, this
index would be referred to as the Egress LSR ID. Since
CEM is always at a tunnel termination, the egress LSR
is always the local (edge) LSR.
The local agent creates an entry here for every entry
created in the mplsCemMappingTable. MplsCemTunnelExtEntry .1.3.6.1.3.9999.1.5.1 |
mplsCemTunnelExtApsEnableEnables this Tunnel (as part of a group) to be used for
APS. Remember a Tunnel group is created when a unique
Tunnel index (in mplsTunnelTable) has multiple instances.
Tunnel disabling may be useful when a Tunnel is suspect,
being debugged, or not fully configured.
Note: some implementations may not support APS.rw TruthValue (SNMPv2-TC) .1.3.6.1.3.9999.1.5.1.1 |
mplsCemTunnelExtApsCriteriaBits set here represent defects and modes for switching
all VCs within this Tunnel to another Tunnel that has no
APS defects. Currently, only CEM defects are available.
Separating and individually selecting CEM defects (buffer
errors, header errors, etc.) is for future study. Also,
for future study: determining a Tunnel's state of
usefulness via other indications (such as OAM).
If 'cemVcCriteria' is set, mplsCemTunnelExtApsViaCemVc
is used to index the CEM VC for which defects are
included. The purpose of this is in situations when
CEM VCs can generate better defects than Tunnels (for
example: buffer errors).
Revertive and Hunt modes:
'revertive' is useful for non-primary Tunnels where you
may want to switch back to a primary Tunnel that has no
defects while the currently active also has no defects
(see mplsCemTunnelExtApsRevertTimer). 'revertive' should
NOT be used when standby Tunnels have no available defect
indications. If 'revertive' is not set, then manual
reversion is possible by simply setting the active
Tunnel's admin status 'down', then 'up'.
'hunt' is useful when standby Tunnels offer no defect
indications (see mplsCemTunnelExtApsHoldOffTimer).
'hunt' should not be used when standby Tunnels have
available defect indications. Hunting assumes standby
Tunnels are good, if not the down timers will determine
it's bad, and hunting continues.
'hunt' and 'revertive' are mutually exclusive.
Note: criteria defect bits here MUST align with
mplsCemTunnelExtDefects so it can be used as a mask.rw Bits .1.3.6.1.3.9999.1.5.1.6 |
mplsCemTunnelExtDefectsCurrent state of Tunnel defect indications. Other bits
here may be defined here to show results of error trend
analysis. Note: These bits MUST be aligned with
mplsCemTunnelExtApsCriteria bits so
mplsCemTunnelExtApsCriteria can be used as a mask.
Note: other defect indications (e.g. from OAM) are for
future study.ro Bits .1.3.6.1.3.9999.1.5.1.7 |
mplsCemTunnelExtApsHoldoffTimerPrimarily used to hold-off an APS switch after the Tunnel
has been determined 'down'. The purpose is to allow
potential recovery schemes within lower communications
layers a chance to recover.
Also useful in 'hunt' mode to hold off switching to the
next Tunnel (slows oscillation when all Tunnels are down).rw Unsigned32 .1.3.6.1.3.9999.1.5.1.8 |
mplsCemTunnelExtApsRevertTimerIf this Tunnel is active and 'up', then this timer
is used in conjunction with 'revertive' (if set above).
The reversion would be delayed for this time.rw Unsigned32 .1.3.6.1.3.9999.1.5.1.9 |
mplsCemTunnelExtApsViaCemVcIndexIndex of the CEM VC from which APS defect criteria are
included with this Tunnel's APS criteria.rw Unsigned32 .1.3.6.1.3.9999.1.5.1.10 |
mplsCemTunnelExtApsViaCemVcInstanceInstance of the CEM VC from which APS defect criteria
are included with this Tunnel's APS criteria.rw Unsigned32 .1.3.6.1.3.9999.1.5.1.11 |
mplsCemTunnelExtStorageTypeThis variable indicates the storage type for this object.rw StorageType (SNMPv2-TC) .1.3.6.1.3.9999.1.5.1.12 |
mplsCemTunnelExtPerfTableThis table is an extension to the mplsTunnelTable. It
provides per Tunnel performance information. SEQUENCE OF MplsCemTunnelExtPerfEntry .1.3.6.1.3.9999.1.6 |
mplsCemTunnelExtPerfEntryAn entry in this table is created by the agent for every
mplsCemTunnelExtEntry. It is an extension to
mplsCemTunnelExtEntry. MplsCemTunnelExtPerfEntry .1.3.6.1.3.9999.1.6.1 |
mplsCemTunnelExtPerfFailedLabelLookupsNumber of packets with unexpected labels received. This
count is based on inbound VC labels seen that are not
configured for this Tunnel.ro Counter32 .1.3.6.1.3.9999.1.6.1.1 |
mplsCemTunnelExtPerfLastFailedLookupContains label from the packet that last failed a label
lookup on this Tunnel.ro MplsLabel (MPLS-LSR-MIB) .1.3.6.1.3.9999.1.6.1.2 |
mplsCemSonetPathExtTableThis table associates a SONET path with a CEM VC
(or CEM VC group) and provides the starting time-slot
of the SONET path. It as assumed that the transmit
and receive sides of the SONET path have the same
starting time-slots. It is also assumed that STSn
paths have contiguous time-slots. SEQUENCE OF MplsCemSonetPathExtEntry .1.3.6.1.3.9999.1.7 |
mplsCemSonetPathExtEntryThis table is indexed by the SONET path ifIndex. An
entry to this table is created by the agent when an
entry is created in the mplsCemVcTable. MplsCemSonetPathExtEntry .1.3.6.1.3.9999.1.7.1 |
mplsCemSonetPathExtVcIndexIndex to entry in the mplsCemVcTable.rw Unsigned32 .1.3.6.1.3.9999.1.7.1.1 |
mplsCemSonetPathExtTimeSlotStarting time-slot for this SONET path within the
SONET line and section. For OC-48, this value could
range from 1 to 48. The SONET path width must be taken
into consideration here, for example, in an OC-48 an
STS-3c could not start at time-slot 47.rw Unsigned32 .1.3.6.1.3.9999.1.7.1.2 |
mplsCemSonetPathExtStorageTypeThis variable indicates the storage type for this
object.rw StorageType (SNMPv2-TC) .1.3.6.1.3.9999.1.7.1.3 |
mplsCemTrapEnableIf this object is true, then it enables the
generation of mplsCemVcUp and mplsCemVcDown
traps, otherwise these traps are not emitted.
These traps are also individually enabled
for each CEM VC.rw TruthValue (SNMPv2-TC) .1.3.6.1.3.9999.1.8 |