CISCO-WWNMGR-MIB

All MIBs › CISCO-WWNMGR-MIB

Organization: Cisco Systems Inc.

Last Updated: 2006-02-06

Category: Fibre Channel and Storage, Vendor: Cisco Devices

Description: Manages Cisco World Wide Name (WWN) allocation and assignment for Fibre Channel SAN devices.

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What Is CISCO-WWNMGR-MIB?

CISCO-WWNMGR-MIB is a Cisco Systems Inc. proprietary MIB configuring WWN (World Wide Name, the Fibre Channel analog of a MAC address, per ANSI FC-FS Rev 1.4) allocation for devices connected to a Fibre Channel switch. Its objects cover a secondary base MAC address and range, Type-1 and Type-Other max/available/reserved WWN counts, a per-VSAN WWN table (WWN, storage type, row status), and WWN-shortage/available notifications for both Type-1 and Type-Other pools. As a configuration/status MIB it lets an administrator confirm WWN pool exhaustion and per-VSAN WWN assignment on a Cisco Fibre Channel switch. It is deployed on Cisco Systems Fibre Channel/MDS SAN switches (WWN management). Engineers can download the CISCO-WWNMGR-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-WWNMGR-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

Cisco Systems Fibre Channel/MDS SAN switches (WWN management)

Monitoring Examples

An administrator receives wwnmType1WwnShortageNotify to catch an exhausted WWN pool on a Cisco Fibre Channel switch.

What Can Be Monitored

WWN pool exhaustion and per-VSAN WWN assignment

Imported Objects

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From CISCO-ST-TC

FcNameId

From CISCO-VSAN-MIB

vsanIndex

OBJECT-TYPE

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Gauge32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

MacAddress
RowStatus
StorageType

How to Use in IPNetwork Monitor

Example using wwnmType1AvailableWwns OID:

Select a Cisco Fibre Channel/MDS SAN switch (WWN management) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type wwnmType1AvailableWwns into the Find box to locate it in the OID tree, then select it and click OK. It reports the number of NAA Type 1 WWNs that are currently available for assignment to internal entities. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Gauge32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
ciscoWwnmgrMIB	1.3.6.1.4.1.9.9.286			The World Wide Name (WWN) in the fibre channel networking technology is equivalent to the MAC address in Ethernet. There are six different types of WWNs defined in ANSI Standard for Fibre Channel Framing and Signalling (FC-FS) Spec Rev 1.4. This mib provides the mechanism to configure and report WWNs for the fibre channel devices connected to a fibre channel switch. GLOSSARY : NAA Network Address Authority (NAA) address formats for WWN. OUI Organization Unique Identifier. VSAN Virtual Storage Area Network, similar to a VLAN.
ciscoWwnmMIBObjects	1.3.6.1.4.1.9.9.286.1
wwnmConfigurationGroup	1.3.6.1.4.1.9.9.286.1.1
MAC wwnmSecondaryBaseMacAddress	1.3.6.1.4.1.9.9.286.1.1.1	MacAddress	read-write	The first MAC address used for generating World Wide Names (WWNs) when the default range of WWNs generated from supervisor MAC address are exhausted.
U32 wwnmSecondaryMacAddressRange	1.3.6.1.4.1.9.9.286.1.1.2	Unsigned32	read-write	The number of secondary MAC Addresses starting from and including the wwnmSecondayBaseMacAddress.
U32 wwnmType1MaxWwns	1.3.6.1.4.1.9.9.286.1.1.3	Unsigned32	read-only	Maximum number of NAA Type 1 WWNs that are available for assignment to internal entities.
G32 wwnmType1AvailableWwnsEx	1.3.6.1.4.1.9.9.286.1.1.4	Gauge32	read-only	Number of NAA Type 1 WWNs that are currently available for assignment to internal entities.
U32 wwnmTypeOtherMaxWwns	1.3.6.1.4.1.9.9.286.1.1.5	Unsigned32	read-only	Maximum number of total WWNs of types NAA Type 2 and Type 5 WWNs available for assignment to internal entities.
G32 wwnmTypeOtherAvailableWwns	1.3.6.1.4.1.9.9.286.1.1.6	Gauge32	read-only	Sum of number of NAA Type 2 and Type 5 WWNs currently available for assignment to the internal entities.
U32 wwnmType1ReservedWwns	1.3.6.1.4.1.9.9.286.1.1.7	Unsigned32	read-only	Number of NAA Type 1 WWNs that are reserved for internal purposes.
U32 wwnmTypeOtherReservedWwns	1.3.6.1.4.1.9.9.286.1.1.8	Unsigned32	read-only	Number of total WWNs of types NAA Type 2 and Type 5 WWNs reserved for internal purposes.
wwnmVsanWwnTable	1.3.6.1.4.1.9.9.286.1.1.9		not-accessible	This table provides an option to configure user specified WWN for the VSANs. To enable the fibre channel switch to interoperate with other vendor switches on a VSAN, user needs to configure a WWN (based on the other vendor switch OUI) for the corresponding VSAN. To create a new entry in this table for a VSAN, a corresponding entry for that VSAN should exists in the vsanTable. Also, the value of the corresponding instance of vsanAdminState should be in 'suspended' state and the VSAN should interoperate in mode 4 (represented by vsanInterOperValue '4'). An entry from this table can be removed by any one of the following ways, a. Setting the corresponding instance wwnmVsanWwnRowStatus value to 'destroy'. b. Deleting the corresponding VSAN from vsanTable. c. Changing the corresponding VSAN configuration from interoperate mode 4 (represented by vsanInterOperValue '4') to any other value.
wwnmVsanWwnEntry	1.3.6.1.4.1.9.9.286.1.1.9.1		not-accessible	An entry (conceptual row) in this table. Each entry of this table represents the WWN configuration set for a VSAN.
FCN wwnmVsanWwn	1.3.6.1.4.1.9.9.286.1.1.9.1.1	FcNameId	read-create	The user configurable WWN for a VSAN. For row creation, it is mandatory to set the value of this object to a valid value.
STO wwnmVsanWwnStorageType	1.3.6.1.4.1.9.9.286.1.1.9.1.2	StorageType	read-only	The storage type for this conceptual row. Conceptual rows having the value 'permanent' need not allow write-access to any columnar objects in the row.
ROW wwnmVsanWwnRowStatus	1.3.6.1.4.1.9.9.286.1.1.9.1.3	RowStatus	read-create	The status of this conceptual row. The value of this object cannot be 'active' unless the value of the corresponding instance of 'wwnmVsanWwn' is set to a valid value.
wwnmNotificationGroup	1.3.6.1.4.1.9.9.286.1.2
wwnmNotification	1.3.6.1.4.1.9.9.286.1.2.1
wwnmNotificationPrefix	1.3.6.1.4.1.9.9.286.1.2.1.0
NTF wwnmType1WwnShortageNotify	1.3.6.1.4.1.9.9.286.1.2.1.0.1			A WWN shortage notification is generated whenever the number of available Type 1 WWNs 'wwnmType1AvailableWwns' reduces to either 20% or 10% or 0% of the maximum number of Type 1 WWNs 'wwnmType1MaxWwns'. After a shortage event is generated for a threshhold (say 20%), another such event will not be generated until after an availability event (see wwnmType1WwnAvailableNotify) is generated for the same threshold.
NTF wwnmType1WwnAvailableNotify	1.3.6.1.4.1.9.9.286.1.2.1.0.2			An availability notification is generated whenever the number of available Type 1 WWNs (wwnmType1AvailableWwns) increases to either 25% or 15% or 5% of the maximum number of Type 1 WWNs (wwnmType1MaxWwns) after a wwnmType1WwnShortageNotify notification has been generated for either 20% or 10% or 5% respectively.
NTF wwnmTypeOtherWwnShortageNotify	1.3.6.1.4.1.9.9.286.1.2.1.0.3			A WWN shortage notification is generated whenever the number of available Type Other WWNs 'wwnmTypeOtherAvailableWwns' reduces to either 20% or 10% or 0% of the maximum number of Type Other WWNs 'wwnmTypeOtherMaxWwns'. After a shortage event is generated for a threshhold (say 20%), another such event will not be generated until after an availability event (see wwnmType1WwnAvailableNotify) is generated for the same threshold.
NTF wwnmTypeOtherWwnAvailableNotify	1.3.6.1.4.1.9.9.286.1.2.1.0.4			An availability notification is generated whenever the number of available Type Other WWNs (wwnmTypeOtherAvailableWwns) increases to either 25% or 15% or 5% of the maximum number of Type Other WWNs (wwnmTypeOtherMaxWwns) after a wwnmTypeOtherWwnShortageNotify notification has been generated for either 20% or 10% or 5% respectively.
ciscoWwnmMIBConformance	1.3.6.1.4.1.9.9.286.2
ciscoWwnmMIBCompliances	1.3.6.1.4.1.9.9.286.2.1
ciscoWwnmMIBCompliance	1.3.6.1.4.1.9.9.286.2.1.1			The compliance statement for entities which implement the CISCO-WWNMGR-MIB.
ciscoWwnmMIBCompliance1	1.3.6.1.4.1.9.9.286.2.1.2			The compliance statement for entities which implement the CISCO-WWNMGR-MIB.
ciscoWwnmMIBGroups	1.3.6.1.4.1.9.9.286.2.2
cwmWwnmConfigurationGroup	1.3.6.1.4.1.9.9.286.2.2.6			A collection of objects for WWN Manager.
cwmWwnmNotificationGroup	1.3.6.1.4.1.9.9.286.2.2.8			A collection of notifications for the WWN assignment.
cwmWwnmVsanWwnGroup	1.3.6.1.4.1.9.9.286.2.2.9			A collection of objects to represent the configured WWN for the VSANs.

RFC description

Manages World Wide Names (WWN) for Fibre Channel devices on Cisco storage switches across VSANs.

Start monitoring Cisco Fibre Channel/MDS SAN switches (WWN management) 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 CISCO-WWNMGR-MIB