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CISCO-CDL-MIB.mib
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-- *****************************************************************
-- CISCO-CDL-MIB.my: Cisco Converged Data Link MIB file
--
-- May 2002, Sameer Merchant, Mickey Spiegel and Sonal Maheshwari
--
-- Copyright (c) 2002, 2003 by cisco Systems, Inc.
-- All rights reserved.
--
-- *****************************************************************
CISCO-CDL-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE,
NOTIFICATION-TYPE, Counter32,
Counter64, Unsigned32 FROM SNMPv2-SMI
TEXTUAL-CONVENTION,
TimeStamp, TruthValue FROM SNMPv2-TC
MODULE-COMPLIANCE, OBJECT-GROUP,
NOTIFICATION-GROUP FROM SNMPv2-CONF
ciscoExperiment FROM CISCO-SMI
ifIndex FROM IF-MIB;
ciscoCdlMIB MODULE-IDENTITY
LAST-UPDATED "200210020000Z" -- 10/02/2002
ORGANIZATION "Cisco Systems, Inc."
CONTACT-INFO "Cisco Systems
Customer Service
Postal: 170 W Tasman Drive
San Jose, CA 95134
Tel: +1 800 553-NETS
E-mail: [email protected]"
DESCRIPTION
"This MIB module defines objects to manage Converged Data Link
(CDL).
CDL provides OAM&P (Operation, Administration, Maintenance and
Provisioning) in Ethernet packet-based optical networks without
a SONET/SDH layer.
The CDL functionality can be divided into the following
categories:
APS/Defect Indications:
The CDL frame carries defect indication bits and provides
signalling mechanism support for automatic protection
switching.
Message Channel:
The message channel is used to carry control (e.g. routing,
signalling) and management traffic.
Packet-by-packet multiplexing of multiple data flows:
CDL uses one or two octets to identify the elementary
packet stream that this packet belongs to. This allows
more than one elementary packet stream to share the
bandwidth on a CDL enabled interface.
This MIB defines objects to manage Defect Indications and the
Packet-by-packet Multiplexing feature.
The CDL Message channel is modeled as a separate interface and
should be controlled using the IF-MIB and other MIBs for
managing IP. This MIB does not provide a mechanism to manage
the CDL message channel.
APS configuration and monitoring can be done using the
CISCO-APS-MIB and CISCO-APS-EXT-MIB.
"
REVISION "200210020000Z" -- 10/02/2002
DESCRIPTION
"Second version of this MIB module.
The following new counters have been added -
coCdlFromCdlNetEthernetCRC
coCdlFromCdlNetEthernetCRCOvrflw
coCdlFromCdlNetHCEthernetCRC
"
REVISION "200205300000Z" -- 05/30/2002
DESCRIPTION
"Initial version of this MIB module."
::= { ciscoExperiment 88 }
coCdlMIBNotifications OBJECT IDENTIFIER ::= { ciscoCdlMIB 0 }
coCdlMIBObjects OBJECT IDENTIFIER ::= { ciscoCdlMIB 1 }
coCdlMIBConformance OBJECT IDENTIFIER ::= { ciscoCdlMIB 3 }
-- Textual Conventions
CoCdlAggDefectIndStatus ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"This reflects the status of the aggregate defect indication
bits, i.e., those defect indication bits defined to reflect the
protection hop and aggregate path status in the CDL OAM field.
The status of the end-to-end backward defect indication bit
(BDI-E) is not included, since this status may vary for each
elementary packet stream present at a CDL enabled interface.
(MSB) (LSB)
7 6 5 4 3 2 1 0
+----------------------+
| |
+----------------------+
| | |
| | +-- FDI-H hop-by-hop forward defect
| | indication
| +----- BDI-H hop-by-hop backward defect
| indication
+-------- FDI-E end-to-end (aggregate path)
forward defect indication
A bit value of '1' indicates the presence of a defect.
A bit value of '0' indicates the absence of a defect.
"
SYNTAX BITS {
hopByHopForwardDefect(0),
hopByHopBackwardDefect(1),
endToEndAggPathForwardDefect(2)
}
CoCdlFlowDefectIndStatus ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"This reflects the status of the CDL flow defect indications.
The end-to-end path forward defect indication is implicit,
i.e. it is not signalled using a bit. An end-to-end path forward
defect is inferred when no CDL Ethernet or Idle packets with a
given CDL flow identifier value are received over a
pre-determined length of time.
The end-to-end path backward defect indication is signalled
using one of the CDL Defect Indication bits in the CDL OAM
field.
(MSB) (LSB)
7 6 5 4 3 2 1 0
+----------------------+
| |
+----------------------+
| |
| +-- implicit end-to-end path forward
| defect indication
+----- BDI-E end-to-end path backward
defect indication
A bit value of '1' indicates the presence of a defect.
A bit value of '0' indicates the absence of a defect.
"
SYNTAX BITS {
endToEndPathImplicitFwdDefect(0),
endToEndPathBackwardDefect(1)
}
CoCdlNodeBehavior ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A network element can take on one of three roles for each CDL
enabled interface:
endOfHop
endOfAggPath
cdlRegenerator
endOfHop: Indicates that this network element acts as a CDL
Hop Terminating Network Element but not as a CDL Aggregate
Path Terminating Network Element, at this interface. A CDL
Hop Terminating Network Element is a network element that
terminates (generates in one direction and consumes in
another direction) OAM information associated with a Hop
at an interface.
A network element will be designated a Hop Terminating
Network Element at an interface only if it meets one of the
following conditions:
(1) It is an Aggregate Path Terminating Network Element,
(2) It carries out Hop-by-hop Automatic Protection
Switching (APS), or
(3) It has been configured to be a Hop Terminating Network
Element. This may be desirable at administrative
boundaries between networks, for example, in order to
limit the span of the hop-by-hop backward defect
indication to the interface between the two networks.
endOfAggPath: Indicates that this network element acts as a
CDL Aggregate Path Terminating Network Element that
terminates (generates in one direction and consumes in
another direction) OAM information associated with an
Aggregate Path (as well as OAM information associated with
a Hop), at this interface.
A network element will be designated an Aggregate Path
Terminating network element at an interface only if it:
(1) applies/removes the CDL Ethernet encapsulation, or
(2) demultiplexes the arriving aggregate packet stream
into elementary packet streams, and multiplexes two
or more elementary packet streams into the departing
packet stream.
cdlRegenerator:
A CDL Regenerator transmits a regenerated input packet
stream. It monitors integrity of the CDL header and
generates CDL alarms (FDI-H) if the incoming packet stream
fails. It also terminates the CDL Message Channel.
"
SYNTAX INTEGER {
endOfAggPath(1),
endOfHop(2),
cdlRegenerator(3)
}
CoCdlFlowIdentifier ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A CDL Flow Identifier value that is used to differentiate
one elementary packet stream from other elementary packet
streams carried on a CDL enabled interface. This value is
carried in the CDL header of packets belonging to
this elementary packet stream.
"
SYNTAX Unsigned32 (0..65535)
-- MIB Object Definitions
coCdlBaseGroup OBJECT IDENTIFIER ::= { coCdlMIBObjects 1 }
coCdlFlowTermGroup OBJECT IDENTIFIER ::= { coCdlMIBObjects 2 }
-- CDL Capable Interface Table
coCdlIntfTable OBJECT-TYPE
SYNTAX SEQUENCE OF CoCdlIntfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table provides objects to configure and monitor CDL on an
Ethernet interface.
"
::= { coCdlBaseGroup 1 }
coCdlIntfEntry OBJECT-TYPE
SYNTAX CoCdlIntfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the CDL Interface Table, providing objects to
configure and monitor CDL on an Ethernet interface.
An entry exists for each CDL capable Ethernet interface.
"
INDEX { ifIndex }
::= { coCdlIntfTable 1 }
CoCdlIntfEntry ::=
SEQUENCE {
coCdlAdminStatus TruthValue,
coCdlForceEndOfHop TruthValue,
coCdlNodeBehavior CoCdlNodeBehavior,
coCdlRxAggDefectIndCurrStatus CoCdlAggDefectIndStatus,
coCdlRxAggDefectIndLastChange TimeStamp,
coCdlTxAggDefectIndCurrStatus CoCdlAggDefectIndStatus,
coCdlTxAggDefectIndLastChange TimeStamp,
coCdlTransmitMaxFlowIdentifier CoCdlFlowIdentifier,
coCdlReceiveMaxFlowIdentifier CoCdlFlowIdentifier,
coCdlRxHeaderCRCError Counter32,
coCdlRxHeaderCRCErrorOverflow Counter32,
coCdlHCRxHeaderCRCError Counter64,
coCdlRxInvalidFlowID Counter32,
coCdlRxInvalidFlowIDOverflow Counter32,
coCdlHCRxInvalidFlowID Counter64,
coCdlRxNonCdlPackets Counter32,
coCdlRxNonCdlPacketsOverflow Counter32,
coCdlHCRxNonCdlPackets Counter64
}
coCdlAdminStatus OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Enables/disables CDL on this interface.
When this object is set to 'true', CDL is enabled on
this interface. When this object is set to 'false',
CDL is disabled on this interface.
When CDL is enabled, the following actions are taken:
1) When a non-CDL packet is progressed to this interface for
transmission, the Ethernet packet is modified to carry the
CDL header. Similarly, when a received packet is progressed
from this interface to a non-CDL interface, the CDL header
is removed from the Ethernet packet.
2) Processing of CDL defect indications is activated.
3) The CDL Message Channel used to carry control (e.g. routing,
signalling) and management traffic is activated. The SNMP
agent creates an interface that represents the CDL Message
Channel. The interface representing the CDL Message Channel
is shown as a higher layer interface, with ifType
'propPointToPointSerial', residing above this CDL enabled
interface in the ifStackTable in the IF-MIB.
4) The CDL APS Channel is activated, if supported and APS is
configured for this interface.
5) Transport of multiple data flows (i.e. packet-by-packet
multiplexing) is activated, if this capability is supported
on this interface.
When CDL is disabled, only traditional (non-CDL) Ethernet
packets are transported, all packets on this interface are
treated as one Ethernet data flow, and the interface
representing the CDL message channel is deleted.
"
::= { coCdlIntfEntry 1 }
coCdlForceEndOfHop OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"When set to 'true', this object forces CDL Hop Terminating
behavior at this interface. A CDL Hop Terminating Network
Element terminates (generates in one direction and consumes in
another direction) hop-by-hop CDL Defect Indications at an
interface.
When this object is set to 'false', this network element may
still act as a CDL Hop Terminating Network Element at this
interface, if either
1) Automatic Protection Switching (APS) has been configured for
this interface, or
2) this network element is an Aggregate Path Terminating
Network Element at this interface.
It is recommended to force CDL Hop Terminating behavior at
administrative boundaries. This ensures that the hop-by-hop
CDL Defect Indications (FDI-H and BDI-H) between two
administrative domains reflect only errors that occur between
the domains, even if APS is not configured for this interface.
"
DEFVAL { false }
::= { coCdlIntfEntry 2 }
coCdlNodeBehavior OBJECT-TYPE
SYNTAX CoCdlNodeBehavior
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates the current CDL defect indication
behavior of this network element, at this interface. A network
element can take on one of three roles at a CDL enabled
interface: Aggregate Path Terminating Network Element
(endOfAggPath), Hop Terminating Network Element (endOfHop), or
CDL Regenerator.
"
::= { coCdlIntfEntry 3 }
coCdlRxAggDefectIndCurrStatus OBJECT-TYPE
SYNTAX CoCdlAggDefectIndStatus
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the current status of the CDL Defect
Indication bits received on this interface.
"
::= { coCdlIntfEntry 4 }
coCdlRxAggDefectIndLastChange OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the value of sysUpTime at the last time
there was a change in the value of
coCdlRxAggDefectIndCurrStatus.
"
::= { coCdlIntfEntry 5 }
coCdlTxAggDefectIndCurrStatus OBJECT-TYPE
SYNTAX CoCdlAggDefectIndStatus
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the current status of the CDL Defect
Indication bits transmitted on this interface.
"
::= { coCdlIntfEntry 6 }
coCdlTxAggDefectIndLastChange OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the value of sysUpTime at the last time
there was a change in the value of
coCdlTxAggDefectIndCurrStatus.
"
::= { coCdlIntfEntry 7 }
coCdlTransmitMaxFlowIdentifier OBJECT-TYPE
SYNTAX CoCdlFlowIdentifier
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A CDL enabled interface can aggregate packet streams
(called elementary packet streams) from multiple interfaces.
CDL uses one or two octets to identify the elementary packet
stream that this packet belongs to (called the flow identifier).
This object identifies the maximum value that can be assigned
to the CDL flow identifier for a packet transmitted on this
interface.
"
::= { coCdlIntfEntry 8 }
coCdlReceiveMaxFlowIdentifier OBJECT-TYPE
SYNTAX CoCdlFlowIdentifier
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A CDL enabled interface can aggregate packet streams
(called elementary packet streams) from multiple interfaces.
CDL uses one or two octets to identify the elementary packet
stream that this packet belongs to (called the flow identifier).
This object identifies the maximum value that can be assigned
to the CDL flow identifier for a packet received on this
interface.
"
::= { coCdlIntfEntry 9 }
coCdlRxHeaderCRCError OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of CDL frames received with CDL Header CRC errors.
This object represents the lower word value of the counter
associated with the number of CDL header CRC errors
encountered in the receive direction.
NOTE: The object coCdlRxHeaderCRCErrorOverflow contains the
higher 32 bits of this counter value. SNMP v2c or v3 managers
can use the coCdlHCRxHeaderCRCError object directly which is a
64 bit counter.
"
::= { coCdlIntfEntry 10 }
coCdlRxHeaderCRCErrorOverflow OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the higher word value of the counter
associated with the number of CDL Header CRC errors
encountered in the receive direction.
NOTE: The object coCdlRxHecError contains the lower 32 bits of
this counter value. If the error count is greater than
4,294,967,295, the higher word value will be stored in this
object. SNMP v2c or v3 managers can use the
coCdlHCRxHeaderCRCError object directly which is a 64 bit
counter.
"
::= { coCdlIntfEntry 11 }
coCdlHCRxHeaderCRCError OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of CDL frames received with CDL Header CRC errors.
This is a High Capacity (64 bit) version of the
coCdlRxHeaderCRCError counter.
"
::= { coCdlIntfEntry 12 }
coCdlRxInvalidFlowID OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the number of CDL Flow Identifier lookup
errors in the receive direction. When a CDL interface
multiplexes/demultiplexes more than one elementary packet
stream, it uses the flow identifier in the CDL header. This
error counter is incremented when a flow identifier value
received on this interface does not map to any of the
elementary packet streams demultiplexed by this interface.
This object represents the lower word value of the counter
associated with the number of CDL Flow Identifier lookup errors
encountered in the receive direction.
NOTE: The object coCdlRxInvalidFlowIDOverflow contains the
higher 32 bits of this counter value. SNMP v2c or v3 managers
can use the coCdlHCRxInvalidFlowID object directly which is a
64 bit counter.
"
::= { coCdlIntfEntry 13 }
coCdlRxInvalidFlowIDOverflow OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the higher word value of the counter
associated with the number of CDL Flow Identifier lookup errors
encountered in the receive direction.
NOTE: The object coCdlRxInvalidFlowID contains the lower 32
bits of this counter value. If the error count is greater than
4,294,967,295, the higher word value will be stored in this
object. SNMP v2c or v3 managers can use the
coCdlHCRxInvalidFlowID object directly which is a 64 bit
counter.
"
::= { coCdlIntfEntry 14 }
coCdlHCRxInvalidFlowID OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the number of CDL Flow Identifier lookup
errors in the receive direction. When a CDL interface
multiplexes/demultiplexes more than one elementary packet
stream, it uses the flow identifier in the CDL header. This
error counter is incremented when a flow identifier value
received on this interface does not map to any of the
elementary packet streams demultiplexed by this interface.
This is a High Capacity (64 bit) version of the
coCdlRxInvalidFlowID counter.
"
::= { coCdlIntfEntry 15 }
coCdlRxNonCdlPackets OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the number of packets received without
a CDL header on this interface. This counter is
incremented only when CDL is enabled on this interface.
This object represents the lower word value of the counter
associated with the number of packets received without a CDL
header on this interface.
NOTE: The object coCdlRxNonCdlPacketsOverflow contains the
higher 32 bits of this counter value. SNMP v2c or v3 managers
can use the coCdlHCRxNonCdlPackets object directly which is a
64 bit counter.
"
::= { coCdlIntfEntry 16 }
coCdlRxNonCdlPacketsOverflow OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the higher word value of the counter
associated with the number of packets received without a CDL
header on this interface.
NOTE: The object coCdlRxNonCdlPackets contains the lower 32
bits of this counter value. If the error count is greater than
4,294,967,295, the higher word value will be stored in this
object. SNMP v2c or v3 managers can use the
coCdlHCRxNonCdlPackets object directly which is a 64 bit
counter.
"
::= { coCdlIntfEntry 17 }
coCdlHCRxNonCdlPackets OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the number of packets received without
a CDL header on this interface. This counter is
incremented only when CDL is enabled on this interface.
This is a High Capacity (64 bit) version of the
coCdlRxNonCdlPackets counter.
"
::= { coCdlIntfEntry 18 }
-- CDL Defect Indication Control Objects
coCdlDefectIndNotifyEnable OBJECT-TYPE
SYNTAX INTEGER {
disabled(1),
enabledAtTerminatingInterfaces(2),
enabledAtAllInterfaces(3)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object indicates whether a change in the received CDL
Defect Indications, including the implicit end-to-end path
defect indication as well as the CDL defect indication bits in
the CDL OAM field, causes a notification to be generated.
disabled: Received CDL aggregate defect indication bit changes
do not cause coCdlRxAggDefectIndChange notifications to be
generated, and CDL flow defect indication changes from the
CDL network at path terminating interfaces do not cause
coCdlFromCdlNetFlowDIChange notifications to be generated.
enabledAtTerminatingInterfaces: A coCdlRxAggDefectIndChange
notification is generated whenever
- the received hop-by-hop forward defect indication (FDI-H)
or the received hop-by-hop backward defect indication bit
(BDI-H) changes at a hop terminating interface, or
- the received end-to-end (aggregate path) defect
indication bit (FDI-E) changes at an aggregate path
terminating interface.
A coCdlFromCdlNetFlowDIChange notification is generated
whenever a CDL flow defect indication, i.e. implicit
end-to-end path forward defect indication or end-to-end
path backward defect indication bit, from the CDL network
changes at a path terminating interface.
enabledAtAllInterfaces: a coCdlRxAggDefectIndChange
notification is generated whenever a received CDL aggregate
defect indication bit changes on any interface, and a
coCdlFromCdlNetFlowDIChange notification is generated
whenever a CDL flow defect indication, i.e. implicit
end-to-end path forward defect indication or end-to-end
path backward defect indication bit, from the CDL network
changes at a path terminating interface.
To minimize the probability of prematurely reacting to
momentary signal variations, a soak time may be incorporated
into the notification in the following manner. A notification
is generated after a defect is first detected, when the defect
persists for a period of time that exceeds the set soak
interval specified by coCdlDefectIndSetSoakInterval. A
notification is generated after a defect stops being detected,
when the defect does not appear over a period of time that
exceeds the clear soak interval specified by
coCdlDefectIndClearSoakInterval.
When changes in CDL defect indications are received for
multiple interfaces within a short time span, notifications
should be deferred so that each notification is generated at
least one coCdlDINotifyThrottleInterval after the previous
notification.
"
DEFVAL { disabled }
::= { coCdlBaseGroup 2 }
coCdlDefectIndSetSoakInterval OBJECT-TYPE
SYNTAX Unsigned32 (100..60000)
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"To minimize the probability of prematurely reacting to
momentary signal variations, a soak time may be incorporated
into the defect indications. The indication is set when the
defect persists for a period of time that exceeds the set soak
interval.
"
DEFVAL { 2500 }
::= { coCdlBaseGroup 3 }
coCdlDefectIndClearSoakInterval OBJECT-TYPE
SYNTAX Unsigned32 (100..60000)
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"To minimize the probability of prematurely reacting to
momentary signal variations, a soak time may be incorporated
into the defect indications. The indication is cleared when no
defect occurs over a period of time that exceeds the clear soak
interval.
"
DEFVAL { 10000 }
::= { coCdlBaseGroup 4 }
coCdlDINotifyThrottleInterval OBJECT-TYPE
SYNTAX Unsigned32 (100..60000)
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The minimum time interval between generation of successive
CDL defect indication 'notification-events' by this agent. A
'notification-event' is the transmission of a single trap or
inform PDU to a list of notification destinations.
If more than one change occurs within a short time span, for
for example if hop-by-hop forward defect indications are
received for multiple interfaces, then notification-events
for these changes should be deferred by the agent so that each
notification-event occurs at least one throttle interval after
the previous notification-event. At the end of each throttle
interval, one notification-event should be generated if the
current defect indication state on any interface is different
from the last state indicated in a notification-event. In such
a case, another throttle interval is started immediately.
"
DEFVAL { 1000 }
::= { coCdlBaseGroup 5 }
-- Flow Termination Objects
coCdlFlowTermTable OBJECT-TYPE
SYNTAX SEQUENCE OF CoCdlFlowTermEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains objects used to manage logical or physical
interfaces representing elementary packet streams at the point
where the CDL path defect indications are terminated.
Typically, this is a point where the CDL Ethernet encapsulation
is applied and removed. This can also be a point between a part
of the CDL network that supports packet-by-packet multiplexing,
and a part of the CDL network that does not support
packet-by-packet multiplexing.
Several elementary packet streams (from multiple logical or
physical path terminating interfaces) may be multiplexed into
an aggregate packet stream before being transmitted out of this
network element, towards the rest of the CDL network.
(1) +---------------+
------>|\ | Aggregate CDL packet stream
: | +----------\ |
------>|-------------==|======> towards CDL network
: | +----------/ | (A)
------>|/ |
(N) +---------------+
In the figure above, interface 'A' aggregates the elementary
packet streams from interfaces '1' through 'N'. A row in this
table exists for each path terminating interface carrying an
elementary packet stream. In the figure above, these interfaces
are labeled '1' through 'N'.
The relationship between the aggregating interface 'A' and an
interface carrying an elementary packet stream is not specified
in this table. It could be derived from the ifstackTable, or
from a cross connect MIB supported by the platform, or from any
other means suitable to the platform.
"
::= { coCdlFlowTermGroup 1 }
coCdlFlowTermEntry OBJECT-TYPE
SYNTAX CoCdlFlowTermEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry that contains objects used to manage a logical or
physical interface representing a single elementary packet
stream at the point where the CDL path defect indications are
terminated. Typically, this is a point where the CDL Ethernet
encapsulation is applied and removed. This can also be a point
between a part of the CDL network that supports
packet-by-packet multiplexing, and a part of the CDL network
that does not support packet-by-packet multiplexing.
This interface may have ifType value other than
'ethernetCsmacd', if traffic from a non-Ethernet protocol is
received on this interface and then encapsulated (or otherwise
interworked) in Ethernet and then CDL, before being progressed
into the CDL network.
"
INDEX { ifIndex }
::= { coCdlFlowTermTable 1 }
CoCdlFlowTermEntry ::=
SEQUENCE {
coCdlFromCdlNetFlowIdentifier CoCdlFlowIdentifier,
coCdlToCdlNetFlowIdentifier CoCdlFlowIdentifier,
coCdlFromCdlNetFlowDICurrStatus CoCdlFlowDefectIndStatus,
coCdlFromCdlNetFlowDILastChange TimeStamp,
coCdlToCdlNetFlowDICurrStatus CoCdlFlowDefectIndStatus,
coCdlToCdlNetFlowDILastChange TimeStamp,
coCdlFromCdlNetEthernetCRC Counter32,
coCdlFromCdlNetEthernetCRCOvrflw Counter32,
coCdlFromCdlNetHCEthernetCRC Counter64
}
coCdlFromCdlNetFlowIdentifier OBJECT-TYPE
SYNTAX CoCdlFlowIdentifier
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the flow identifier value received from
the CDL network that identifies this elementary packet stream
at this interface.
Note that if CDL is not enabled on this interface, this
represents the flow identifier value passed to this interface
from the cross connect fabric. If the cross connect fabric
does not map the flow identifier value for this elementary
packet stream, this is the value passed from the CDL
aggregation interface on the other side of the cross connect.
"
::= { coCdlFlowTermEntry 1 }
coCdlToCdlNetFlowIdentifier OBJECT-TYPE
SYNTAX CoCdlFlowIdentifier
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object specifies the flow identifier value set in CDL
packets in this elementary packet stream that are progressed
from this interface towards the CDL network.
Note that if CDL is not enabled on this interface, this
represents the flow identifier value passed to the fabric
that cross connects this packet stream onto a CDL aggregation
interface.
"
::= { coCdlFlowTermEntry 2 }
coCdlFromCdlNetFlowDICurrStatus OBJECT-TYPE
SYNTAX CoCdlFlowDefectIndStatus
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the current status of the CDL flow defect
indications received from the CDL network, at this interface.
Note that the end-to-end path forward defect indication is
implicit, i.e. it is not signalled using a bit. An end-to-end
path forward defect is inferred when no CDL Ethernet or Idle
packets are received with the flow identifier value specified
by coCdlFromCdlNetFlowIdentifier, over a pre-determined length
of time.
"
::= { coCdlFlowTermEntry 3 }
coCdlFromCdlNetFlowDILastChange OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the value of sysUpTime at the last time
there was a change in the value of
coCdlFromCdlNetFlowDICurrStatus.
"
::= { coCdlFlowTermEntry 4 }
coCdlToCdlNetFlowDICurrStatus OBJECT-TYPE
SYNTAX CoCdlFlowDefectIndStatus
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the current status of the CDL flow defect
indications progressed towards the CDL network from this
interface.
Note that the end-to-end path forward defect indication is
implicit, i.e. it is not signalled using a bit. An end-to-end
path forward defect is indicated by stopping transmission of
CDL Ethernet and Idle packets with the flow identifier value
specified by coCdlToCdlNetFlowIdentifier.
"
::= { coCdlFlowTermEntry 5 }
coCdlToCdlNetFlowDILastChange OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the value of sysUpTime at the last time
there was a change in the value of
coCdlToCdlNetFlowDICurrStatus.
"
::= { coCdlFlowTermEntry 6 }
coCdlFromCdlNetEthernetCRC OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the lower word value of the counter
that provides a count of Ethernet packets with CRC
errors, for an elementary packet stream, at the point where
the CDL header is removed. When Ethernet is used as an
encapsulation for transport of non-Ethernet protocols, this
is the number of Ethernet CRC errors, before the Ethernet
encapsulation is removed and the resulting traffic for the
underlying protocol is transmitted out this interface.
NOTE: The object coCdlFromCdlNetEthernetCRCOvrflw contains the
higher 32 bits of this counter value. SNMP v2c or v3 managers
can use the coCdlFromCdlNetHCEthernetCRC object directly which
is a 64 bit counter.
"
::= { coCdlFlowTermEntry 7 }
coCdlFromCdlNetEthernetCRCOvrflw OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object represents the higher word value of the counter
that provides a count of Ethernet packets with CRC
errors, for an elementary packet stream, at the point where
the CDL header is removed. When Ethernet is used as an
encapsulation for transport of non-Ethernet protocols, this
is the number of Ethernet CRC errors, before the Ethernet
encapsulation is removed and the resulting traffic for the
underlying protocol is transmitted out this interface.
NOTE: The object coCdlFromCdlNetEthernetCRC contains the
lower 32 bits of this counter value. SNMP v2c or v3 managers
can use the coCdlFromCdlNetHCEthernetCRC object directly which
is a 64 bit counter.
"
::= { coCdlFlowTermEntry 8 }
coCdlFromCdlNetHCEthernetCRC OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object provides a count of Ethernet packets with CRC
errors, for an elementary packet stream, at the point where
the CDL header is removed. When Ethernet is used as an
encapsulation for transport of non-Ethernet protocols, this
is the number of Ethernet CRC errors, before the Ethernet
encapsulation is removed and the resulting traffic for the
underlying protocol is transmitted out this interface.
This is a High Capacity (64 bit) version of the
coCdlFromCdlNetEthernetCRC counter.
"
::= { coCdlFlowTermEntry 9 }
-- CDL Notifications
coCdlRxAggDefectIndChange NOTIFICATION-TYPE
OBJECTS { coCdlRxAggDefectIndCurrStatus,
coCdlRxAggDefectIndLastChange
}
STATUS current
DESCRIPTION
"This notification is sent when the value of the hop-by-hop
forward defect indication (FDI-H), hop-by-hop backward defect
indication (BDI-H), or end-to-end (aggregate path) forward
defect indication (FDI-E) bit received on an interface changes.
To minimize the probability of prematurely reacting to
momentary signal variations, a soak time may be incorporated
into the notification in the following manner. A notification
is generated after a defect is first detected, when the defect
persists for a period of time that exceeds the set soak
interval specified by coCdlDefectIndSetSoakInterval. A
notification is generated after a defect stops being detected,
when the defect does not appear over a period of time that
exceeds the clear soak interval specified by
coCdlDefectIndClearSoakInterval.
When changes in CDL defect indications are received for
multiple interfaces within a short time span, notifications
should be deferred so that each notification is generated at
least one coCdlDINotifyThrottleInterval after the previous
notification.
"
::= { coCdlMIBNotifications 1 }
coCdlFromCdlNetFlowDIChange NOTIFICATION-TYPE
OBJECTS { coCdlFromCdlNetFlowDICurrStatus,
coCdlFromCdlNetFlowDILastChange
}
STATUS current
DESCRIPTION
"This notification is sent when the value of the received
end-to-end path forward defect indication or the received
end-to-end path backward defect indication changes.
Note that the end-to-end path forward defect indication is
implicit, i.e. it is not signalled using a bit. An end-to-end
path forward defect is inferred when no CDL Ethernet or Idle
packets are received over a pre-determined length of time.
To minimize the probability of prematurely reacting to
momentary signal variations, a soak time may be incorporated
into the notification in the following manner. A notification
is generated after a defect is first detected, when the defect