ENTERASYS-CN-MIB-EXT-MIB

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Organization: Enterasys Networks, Inc

Last Updated: 2012-07-20

Category: Vendor: Enterasys/Cabletron

Description: Enterasys Networks proprietary extension to the IEEE 802.1Qau Congestion Notification MIB for hardware queue profile management.

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What Is ENTERASYS-CN-MIB-EXT-MIB?

ENTERASYS-CN-MIB-EXT-MIB is a proprietary Enterasys Networks extension to the standard IEEE8021-CN-MIB (802.1Qau Congestion Notification), adding configuration objects for hardware queue profiles used to implement congestion notification on platforms that cannot directly configure individual congestion-point queues. It exposes queue-profile-type and queue-profile-instance tables describing the hardware's queue-profile capabilities and current assignments. Its monitoring relevance is limited to hardware queueing configuration status: an administrator can check how many queue profile entries a given hardware component supports and which profile is currently assigned, which relates to switch fabric/ASIC configuration rather than general system health. It explicitly depends on and extends the standard IEEE8021-CN-MIB, adding vendor-specific queue-profile abstractions the standard model lacks. It is deployed on Enterasys/Extreme Networks data-center switches implementing 802.1Qau congestion notification (part of Data Center Bridging) for lossless Ethernet fabrics, where ENTERASYS-CN-MIB-EXT-MIB SNMP monitoring verifies the hardware queue-profile assignments backing that congestion-notification configuration.

IPNetwork Monitor allows you to monitor SNMP objects defined in ENTERASYS-CN-MIB-EXT-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

Enterasys/Extreme Networks data-center Ethernet switch

Monitoring Examples

An administrator would inspect etsysCnMibExtQpTypeTable/etsysCnMibExtQpTypeEntry to see etsysCnMibExtQptMaxQpEntries and etsysCnMibExtQptSupport for a given queue-profile type, confirming the hardware supports the number of profiles the DCB configuration requires. etsysCnMibExtQpTable/etsysCnMibExtQpEntry, indexed by etsysCnMibExtQpComponentId and etsysCnMibExtQpIndex, would then be checked to verify the correct queue profile is applied to a given congestion-point component after a configuration change. This is a hardware queue-configuration MIB rather than a live congestion-event/counter feed.

What Can Be Monitored

queue profile type capabilities
max queue-profile entries supported
assigned queue profile per component
congestion-point queue configuration

Imported Objects

From ENTERASYS-MIB-NAMES

etsysModules

OBJECT-IDENTITY

From IEEE8021-CN-MIB

ieee8021CnCpEntry	OBJECT-TYPE
ieee8021CnGlobalEntry	OBJECT-TYPE

From IEEE8021-TC-MIB

IEEE8021PbbComponentIdentifier

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

RowStatus

OIDs

OID symbolic	OID numeric	Type	Access	Description
etsysCnMibExtMIB	1.3.6.1.4.1.5624.1.2.95			This MIB module defines a portion of the SNMP MIB under the Enterasys Networks enterprise OID pertaining to proprietary extensions to the IEEE8021-CN-MIB. This MIB was designed to be used for configuration of CN queue profiles. The standard IEEE8021-CN-MIB provides a congestion point object to manage parameters that are specific to a congestion notification queue, however many platforms do not support direct configuration of queues in the hardware. Some hardware support for CN provides the ability to configure a set of profiles which are then mapped to hardware queues. The number of profiles supported is hardware specific. A queue profile provides the same set of parameters that are provided in a congestion point managed object. Each congestion point is then provided a queue profile index which maps the congestion point object to a profile.
etsysCnMibExtObjects	1.3.6.1.4.1.5624.1.2.95.1
etsysCnMibExtSysBranch	1.3.6.1.4.1.5624.1.2.95.1.1
etsysCnMibExtQpTypeTable	1.3.6.1.4.1.5624.1.2.95.1.1.1		not-accessible	A table of CN queue profile types.
etsysCnMibExtQpTypeEntry	1.3.6.1.4.1.5624.1.2.95.1.1.1.1		not-accessible	An entry in the CN queue profile type table.
U32 etsysCnMibExtQptIdentifier	1.3.6.1.4.1.5624.1.2.95.1.1.1.1.1	Unsigned32	not-accessible	The CN queue profile type within the system to which the information in this entry applies.
STR etsysCnMibExtQptDesc	1.3.6.1.4.1.5624.1.2.95.1.1.1.1.2	SnmpAdminString	read-only	A textual description of the CN queue profile type for this entry.
U32 etsysCnMibExtQptMaxQpEntries	1.3.6.1.4.1.5624.1.2.95.1.1.1.1.3	Unsigned32	read-only	The maximum number of CN queue profile entries allowed for this profile type.
BIT etsysCnMibExtQptSupport	1.3.6.1.4.1.5624.1.2.95.1.1.1.1.4	Bits	read-only	This object represents the CN queue profile parameters that are supported by queue profile entries of the queue profile type defined by this entry.
U32 etsysCnMibExtMaxCompActivePriVals	1.3.6.1.4.1.5624.1.2.95.1.1.2	Unsigned32	read-only	The maximum number of active ieee8021CnCompntPriTable entries allowed per component in the system. An entry is active if the ieee8021CnComPriRowStatus is active.
etsysCnMibExtCompBranch	1.3.6.1.4.1.5624.1.2.95.1.2
etsysCnMibExtQpTable	1.3.6.1.4.1.5624.1.2.95.1.2.1		not-accessible	A table of CN queue configuration profiles.
etsysCnMibExtQpEntry	1.3.6.1.4.1.5624.1.2.95.1.2.1.1		not-accessible	An entry in the CN profile table.
OID etsysCnMibExtQpComponentId	1.3.6.1.4.1.5624.1.2.95.1.2.1.1.1	IEEE8021PbbComponentIdentifier	not-accessible	The bridge component within the system to which the information in this etsysCnMibExtQpEntry applies. If the system is not a Bridge, or if only one component is present in the Bridge, then this variable (index) MUST be equal to 1.
U32 etsysCnMibExtQpTypeId	1.3.6.1.4.1.5624.1.2.95.1.2.1.1.2	Unsigned32	not-accessible	This object represents the CN queue profile type to which this entry applies.
U32 etsysCnMibExtQpIndex	1.3.6.1.4.1.5624.1.2.95.1.2.1.1.3	Unsigned32	not-accessible	This object represents the CN queue profile to which this entry applies.
U32 etsysCnMibExtQpSizeSetPoint	1.3.6.1.4.1.5624.1.2.95.1.2.1.1.4	Unsigned32	read-create	This object is the set point for the queues managed by this profile entry. Congestion Notification Messages are transmitted to the sources of frames queued in this CP's queue in order to keep the total number of octets stored in the queue at this set point.
I32 etsysCnMibExtQpFeedbackWeight	1.3.6.1.4.1.5624.1.2.95.1.2.1.1.5	Integer32	read-create	This object controls the weight (cpW) change in queue length in the calculation of cpFb when the Congestion Point is generating a Congestion Notification Message. The weight cpW is equal to two to the power of this object. Thus, if this object contains a -1, cpW = 1/2.
U32 etsysCnMibExtQpMinSampleBase	1.3.6.1.4.1.5624.1.2.95.1.2.1.1.6	Unsigned32	read-create	This object determines the minimum number of octets to enqueue in the Congestion Point's queue between transmissions of Congestion Notification Messages.
U32 etsysCnMibExtQpMinHeaderOctets	1.3.6.1.4.1.5624.1.2.95.1.2.1.1.7	Unsigned32	read-create	Specifies the minimum number of octets to be returned in a Congestion Notification Message from the mac_service_data_unit of the data frame that triggered transmission of the CNM. If the mac_service_data_unit has fewer octets than the value of this object, then all of the mac_service_data_unit is returned in the CNM.
ROW etsysCnMibExtQpRowStatus	1.3.6.1.4.1.5624.1.2.95.1.2.1.1.8	RowStatus	read-create	This object indicates the status of an entry, and is used to create/delete entries.
etsysCnMibExtCpTable	1.3.6.1.4.1.5624.1.2.95.1.2.2		not-accessible	A table of CN congestion point objects.
etsysCnMibExtCpEntry	1.3.6.1.4.1.5624.1.2.95.1.2.2.1		not-accessible	An entry in the CN congestion point table.
U32 etsysCnMibExtCpQpTypeId	1.3.6.1.4.1.5624.1.2.95.1.2.2.1.1	Unsigned32	read-only	This object represents the CN queue profile type to which this entry applies.
U32 etsysCnMibExtCpQpIndex	1.3.6.1.4.1.5624.1.2.95.1.2.2.1.2	Unsigned32	read-write	This object represents the CN queue profile to which this entry applies.
etsysCnMibExtGlobalTable	1.3.6.1.4.1.5624.1.2.95.1.2.3		not-accessible	A table of CN global configuration and status objects.
etsysCnMibExtGlobalEntry	1.3.6.1.4.1.5624.1.2.95.1.2.3.1		not-accessible	An entry in the CN global table.
U32 etsysCnMibExtGlobalActivePriVals	1.3.6.1.4.1.5624.1.2.95.1.2.3.1.1	Unsigned32	read-only	The number of active ieee8021CnCompntPriTable entries for this component in the system. An entry is active if the ieee8021CnComPriRowStatus is active.
etsysCnMibExtConformance	1.3.6.1.4.1.5624.1.2.95.2
etsysCnMibExtGroups	1.3.6.1.4.1.5624.1.2.95.2.1
etsysCnMibExtQpTypeGroup	1.3.6.1.4.1.5624.1.2.95.2.1.1			The collection of objects to provide information about congestion notification queue profile types that are supported in a system.
etsysCnMibExtSysGroup	1.3.6.1.4.1.5624.1.2.95.2.1.2			A collection of objects to provide information about extended capabilities of a system which supports congestion notification.
etsysCnMibExtGlobalGroup	1.3.6.1.4.1.5624.1.2.95.2.1.3			A collection of objects to provide information about extended capabilities of a component in a system which supports congestion notification.
etsysCnMibExtQpGroup	1.3.6.1.4.1.5624.1.2.95.2.1.4			A collection of objects providing the ability to configure a CN queue profile which can be assigned to a CN profile.
etsysCnMibExtCpGroup	1.3.6.1.4.1.5624.1.2.95.2.1.5			A collection of objects providing the ability to map a CN congestion point object to a CN queue profile object.
etsysCnMibExtCompliances	1.3.6.1.4.1.5624.1.2.95.2.2
etsysCnMibExtCompliance	1.3.6.1.4.1.5624.1.2.95.2.2.1			The compliance statement for devices that support etsysCnMibExtMIB.

RFC description

Enterasys Congestion Notification (CN) extension MIB for queue profile management.

Start monitoring Enterasys Networks switch (legacy, later Extreme Networks) (802.1Qau congestion notification queue profiles) 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 ENTERASYS-CN-MIB-EXT-MIB

What Is ENTERASYS-CN-MIB-EXT-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description