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Understanding MIBs

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Understanding MIBs The MIB is a database of information monitored and managed on a device, in this case an HP StorageWorks switch. The MIB structure can be represented by a tree hierarchy. The root splits into three main branches: International Organization for Standardization (ISO), Consultative Committee for International Telegraph and Telephone (CCITT), and joint ISO/CCITT. These branches have short text strings and integers (OIDs) to identify them. Text strings describe object names, while integers allow software to create compact, encoded representations of the names. Each MIB variable is assigned an object identifier (OID). The OID is the sequence of numeric labels on the nodes along a path from the root to the object. For example, as shown in Figure 4, the HP SW.MIB OID is: 1.3.6.1.4.1.1588 The corresponding name is: iso.org.dod.internet.private.enterprise.bsci The other branches are part of the standard MIBs. The portions relevant to configuring SNMP on an HP StorageWorks switch are referenced in the remainder of this manual. iso (1) org (3) dod (6) internet (1) HP SW MIB 1.3.6.1.4.1.1588 directory (1) mgmt (2) mib-2 (1) system (1) interface (2) sysDescr (1) sysObjectID (2) experimental (3) private (4) fibreChannel (42) enterprise (1) fcFe (1) bcsi (1588) fcFabric (2) Figure 4 HP MIB tree location Use a MIB browser to access the MIB variables; all MIB browsers perform queries and load MIBs. Since different vendors vary the information in their private enterprise MIBs, it is necessary to verify their information. The Fibre Channel MIB standards dictate that certain information be included in all MIBs; it is the vendor's responsibility to follow the standards. The standards are: • FibreAlliance (FA) MIB: HP supports version 3.0. • Fabric Element (FE) MIB: accepted by the Internet Engineering Task Force (IETF). HP supports FE_RCF2837.mib under the MIB-II branch in Fabric OS 4.x, 3.2.0, and 3.1.x and the experimental version, FE_EXP.mib, in Fabric OS 2.6.x and 3.0.x. This latest version of the FE MIB references the FRAMEWORK.MIB and, based on the MIB browser, it is necessary to load this MIB before the FE.MIB. See "Loading HP MIBs" on page 32 for more information. 30 Understanding HP SNMP

Section	Page
Contents	3
Intended audience	25
Related documentation	25
HP StorageWorks Fabric OS 5.x master glossary	25
Document conventions and symbols	26
Table 1 Document conventions	26
HP technical support	26
HP-authorized reseller	27
Helpful web sites	27
Understanding HP SNMP	29
Understanding SNMP basics	29
Figure 1 SNMP structure	29
Figure 2 SNMP query	29
Figure 3 SNMP trap	29
Understanding MIBs	30
Figure 4 HP MIB tree location	30
Understanding SNMP traps	31
FA traps	31
HA traps	31
SW traps	32
Object instances	32
Loading HP MIBs	32
Before loading MIBs	32
Table 2 Fabric OS supported SNMP versions	32
MIB loading order	33
Figure 5 HP SNMP MIB dependencies and advised installation order	33
HP MIB files	33
Fabric OS commands for configuring SNMP	34
Table 3 Commands for configuring SNMP	34
Firmware upgrades and enabled traps	34
MIB-II (RFC1213-MIB)	35
MIB II overview	35
MIB-II object hierarchy	35
Figure 6 MIB overall hierarchy	35
Figure 7 System hierarchy	35
Figure 8 Interfaces hierarchy	36
Figure 9 AT hierarchy	36
Figure 10 IP hierarchy	37
Figure 11 ICMP hierarchy	38
Figure 12 TCP hierarchy	38
Figure 13 UDP hierarchy	39
Figure 14 EGP hierarchy	39
Figure 15 SNMP hierarchy	40
Textual conventions	40
Table 4 MIB-II text conventions	40
Objects and types imported	40
System group	41
sysDescr	41
sysObjectID	41
sysUpTime	41
sysContact	41
sysName	41
sysLocation	41
sysServices	42
Interfaces group	42
ifNumber	42
Interfaces table	42
ifTable	42
ifEntry	42
ifIndex	43
ifDescr	43
ifType	43
ifMtu	43
ifSpeed	44
ifPhysAddress	44
ifAdminStatus	44
ifOperStatus	44
ifLastChange	44
ifInOctets	44
ifInUcastPkts	45
ifInNUcastPkts	45
ifInDiscards	45
ifInErrors	45
ifInUnknownProtos	45
ifOutOctets	45
ifOutUcastPkts	45
ifOutNUcastPkts	45
ifOutDiscards	46
ifOutErrors	46
ifOutQLen	46
ifSpecific	46
Address translation group	46
Address translation table	46
atTable	46
atEntry	47
atIfIndex	47
atPhysAddress	47
atNetAddress	47
IP group	47
ipForwarding	47
ipDefaultTTL	47
ipInReceives	47
ipInHdrErrors	47
ipInAddrErrors	48
ipForwDatagrams	48
ipInUnknownProtos	48
ipInDiscards	48
ipInDelivers	48
ipOutRequests	48
ipOutDiscards	48
ipOutNoRoutes	49
ipReasmTimeout	49
ipReasmReqds	49
ipReasmOKs	49
ipReasmFails	49
ipFragOKs	49
ipFragFails	49
ipFragCreates	50
IP address table	50
ipAddrTable	50
ipAddrEntry	50
ipAdEntAddr	50
ipAdEntIfIndex	50
ipAdEntNetMask	50
ipAdEntBcastAddr	50
ipAdEntReasmMaxSize	50
IP routing table	51
ipRouteTable	51
ipRouteEntry	51
ipRouteDest	51
ipRouteIfIndex	51
ipRouteMetric1	51
ipRouteMetric2	51
ipRouteMetric3	51
ipRouteMetric4	52
ipRouteNextHop	52
ipRouteType	52
ipRouteProto	52
ipRouteAge	52
ipRouteMask	53
ipRouteMetric5	53
ipRouteInfo	53
IP address translation table	53
ipNetToMediaTable	53
ipNetToMediaEntry	53
ipNetToMediaIfIndex	54
ipNetToMediaPhysAddress	54
ipNetToMediaNetAddress	54
ipNetToMediaType	54
Additional IP objects	54
ipRoutingDiscards	54
ICMP group	54
icmpInMsgs	54
icmpInErrors	54
icmpInDestUnreachs	54
icmpInTimeExcds	55
icmpInParmProbs	55
icmpInSrcQuenchs	55
icmpInRedirects	55
icmpInEchos	55
icmpInEchoReps	55
icmpInTimestamps	55
icmpInTimestampReps	55
icmpInAddrMasks	55
icmpInAddrMaskReps	55
icmpOutMsgs	56
icmpOutErrors	56
icmpOutDestUnreachs	56
icmpOutTimeExcds	56
icmpOutParmProbs	56
icmpOutSrcQuenchs	56
icmpOutRedirects	56
icmpOutEchos	56
icmpOutEchoReps	56
icmpOutTimestamps	57
icmpOutTimestampReps	57
icmpOutAddrMasks	57
icmpOutAddrMaskReps	57
TCP group	57
tcpRtoAlgorithm	57
tcpRtoMin	57
tcpRtoMax	57
tcpMaxConn	58
tcpActiveOpens	58
tcpPassiveOpens	58
tcpAttemptFails	58
tcpEstabResets	58
tcpCurrEstab	58
tcpInSegs	58
tcpOutSegs	58
tcpRetransSegs	58
TCP connection table	59
tcpConnTable	59
tcpConnEntry	59
tcpConnState	59
tcpConnLocalAddress	59
tcpConnLocalPort	60
tcpConnRemAddress	60
tcpConnRemPort	60
Additional TCP objects	60
tcpInErrs	60
tcpOutRsts	60
UDP group	60
udpInDatagrams	60
udpNoPorts	60
udpInErrors	60
udpOutDatagrams	60
UDP listener table	61
udpTable	61
udpEntry	61
udpLocalAddress	61
udpLocalPort	61
EGP group	61
Transmission group	61
SNMP group	62
snmpInPkts	62
snmpOutPkts	62
snmpInBadVersions	62
snmpInBadCommunityNames	62
snmpInBadCommunityUses	62
snmpInASNParseErrs	62
snmpInTooBigs	62
snmpInNoSuchNames	63
snmpInBadValues	63
snmpInReadOnlys	63
snmpInGenErrs	63
snmpInTotalReqVars	63
snmpInTotalSetVars	63
snmpInGetRequests	63
snmpInGetNexts	64
snmpInSetRequests	64
snmpInGetResponses	64
snmpInTraps	64
snmpOutTooBigs	64
snmpOutNoSuchNames	64
snmpOutBadValues	64
snmpOutGenErrs	64
snmpOutGetRequests	65
snmpOutGetNexts	65
snmpOutSetRequests	65
snmpOutGetResponses	65
snmpOutTraps	65
snmpEnableAuthenTraps	65
FE MIB objects	67
FE MIB overview	67
Table 5 FE MIBs and supported Fabric OS versions	67
FIBRE-CHANNEL-FE-MIB (MIB-II branch)	67
FIBRE-CHANNEL-FE-MIB organization	68
Figure 16 fcFeMIB hierarchy	68
Figure 17 fcFeConfig hierarchy	68
Figure 18 fcFeStatus Hierarchy	69
Figure 19 fcFeError hierarchy	69
Figure 20 fcFeAccounting hierarchy	70
Figure 21 fcFeCapabilities hierarchy	70
Definitions for FIBRE-CHANNEL-FE-MIB	70
Table 6 FIBRE-CHANNEL-FE-MIB definitions	71
fcFeConfig group	74
fcFeFabricName	74
fcFeElementName	74
fcFeModuleCapacity	74
fc FE module table	74
fcFeModuleTable	74
fcFeModuleEntry	74
fcFeModuleIndex	74
fcFeModuleDescr	75
fcFeModuleObjectID	75
fcFeModuleOperStatus	75
fcFeModuleLastChange	75
fcFeModuleFxPortCapacity	75
fcFeModuleName	76
Fx_Port table	76
fcFxPortTable	76
fcFxPortEntry	76
fcFxPortIndex	76
fcFxPortName	76
Fx_Port common service parameters	76
fcFxPortFcphVersionHigh	76
fcFxPortFcphVersionLow	76
fcFxPortBbCredit	77
fcFxPortRxBufSize	77
fcFxPortRatov	77
fcFxPortEdtov	77
Fx_Port class service parameters	77
fcFxPortCosSupported	77
fcFxPortIntermixSupported	77
fcFxPortStackedConnMode	77
fcFxPortClass2SeqDeliv	77
fcFxPortClass3SeqDeliv	78
Other Fx_Port parameters	78
fcFxPortHoldTime	78
fcFeStatus group	78
Fx_Port status table	78
fcFxPortStatusTable	78
fcFxPortStatusEntry	78
fcFxPortID	78
fcFxPortBbCreditAvailable	78
fcFxPortOperMode	79
fcFxPortAdminMode	79
Fx_Port physical level table	79
fcFxPortPhysTable	79
fcFxPortPhysEntry	79
fcFxPortPhysAdminStatus	79
fcFxPortPhysOperStatus	80
fcFxPortPhysLastChange	80
fcFxPortPhysRttov	80
Fx_Port fabric login table	80
fcFxloginTable	80
fcFxloginEntry	80
fcFxPortNxLoginIndex	80
fcFxPortFcphVersionAgreed	81
fcFxPortNxPortBbCredit	81
fcFxPortNxPortRxDataFieldSize	81
fcFxPortCosSuppAgreed	81
fcFxPortIntermixSuppAgreed	81
fcFxPortStackedConnModeAgreed	81
fcFxPortClass2SeqDelivAgreed	82
fcFxPortClass3SeqDelivAgreed	82
fcFxPortNxPortName	82
fcFxPortConnectedNxPort	82
fcFxPortBbCreditModel	82
fcFeError group	82
Fx_Port error table	83
fcFxPortErrorTable	83
fcFxPortErrorEntry	83
fcFxPortLinkFailures	83
fcFxPortSyncLosses	83
fcFxPortSigLosses	83
fcFxPortPrimSeqProtoErrors	83
fcFxPortInvalidTxWords	83
fcFxPortInvalidCrcs	83
fcFxPortDelimiterErrors	84
fcFxPortAddressIdErrors	84
fcFxPortLinkResetIns	84
fcFxPortLinkResetOuts	84
fcFxPortOlsIns	84
fcFxPortOlsOuts	84
feFcAccounting group	84
Class 1 accounting table	84
fcFxPortC1AccountingTable	84
fcFxPortC1AccountingEntry	85
fcFxPortC1InFrames	85
fcFxPortC1OutFrames	85
fcFxPortC1InOctets	85
fcFxPortC1OutOctets	85
fcFxPortC1Discards	85
fcFxPortC1FbsyFrames	85
fcFxPortC1FrjtFrames	85
fcFxPortC1InConnections	85
fcFxPortC1OutConnections	86
fcFxPortC1ConnTime	86
Class 2 accounting table	86
fcFxPortC2AccountingTable	86
fcFxPortC2AccountingEntry	86
fcFxPortC2InFrames	86
fcFxPortC2OutFrames	86
fcFxPortC2InOctets	86
fcFxPortC2OutOctets	86
fcFxPortC2Discards	87
fcFxPortC2FbsyFrames	87
fcFxPortC2FrjtFrames	87
Class 3 accounting table	87
fcFxPortC3AccountingTable	87
fcFxPortC3AccountingEntry	87
fcFxPortC3InFrames	87
fcFxPortC3OutFrames	87
fcFxPortC3InOctets	87
fcFxPortC3OutOctets	87
fcFxPortC3Discards	88
fcFeCapability group	88
Fx_Port capability table	88
fcFxPortCapTable	88
fcFxPortCapEntry	88
fcFxPortCapFcphVersionHigh	88
fcFxPortCapFcphVersionLow	88
fcFxPortCapBbCreditMax	88
fcFxPortCapBbCreditMin	88
fcFxPortCapRxDataFieldSizeMax	89
fcFxPortCapRxDataFieldSizeMin	89
fcFxPortCapCos	89
fcFxPortCapIntermix	89
fcFxPortCapStackedConnMode	89
fcFxPortCapClass2SeqDeliv	89
fcFxPortCapClass3SeqDeliv	89
fcFxPortCapHoldTimeMax	89
fcFxPortCapHoldTimeMin	90
FCFABRIC-ELEMENT-MIB (experimental branch)	90
FCFABRIC-ELEMENT-MIB organization	90
Figure 22 FCFABRIC-ELEMENT-MIB overall tree structure	91
Figure 23 fcFeConfig hierarchy	91
Figure 24 fcFeOp hierarchy	92
Figure 25 fcFeError hierarchy	92
Figure 26 fcFeAcct hierarchy	93
Figure 27 fcFeCap hierarchy	93
Definitions for FCFABRIC-ELEMENT-MIB	93
Table 7 FCFABRIC-ELEMENT-MIB definitions	94
fcFeConfig group	96
fcFabricName	96
fcElementName	96
fcFeModuleCapacity	96
fc FE module table	97
fcFeModuleTable	97
fcFeModuleEntry	97
fcFeModuleIndex	97
fcFeModuleDescr	97
fcFeModuleObjectID	97
fcFeModuleOperStatus	97
fcFeModuleLastChange	98
fcFeModuleFxPortCapacity	98
fcFeModuleName	98
Fx_Port configuration table	98
fcFxConfTable	98
fcFxConfEntry	98
fcFxConfModuleIndex	98
fcFxConfFxPortIndex	98
fcFxPortName	99
fcFxPortFcphVersionHigh	99
fcFxPortFcphVersionLow	99
fcFxPortBbCredit	99
fcFxPortRxBufSize	99
fcFxPortRatov	99
fcFxPortEdtov	99
fcFxPortCosSupported	99
fcFxPortIntermixSupported	100
fcFxPortStackedConnMode	100
fcFxPortClass2SeqDeliv	100
fcFxPortClass3SeqDeliv	100
fcFxPortHoldTime	100
fcFxPortBaudRate	100
fcFxPortMedium	100
fcFxPortTxType	100
fcFxPortDistance	101
fcFeOp group	101
Fx_Port operation table	101
fcFxPortOperTable	101
fcFxPortOperEntry	101
fcFxPortOperModuleIndex	101
fcFxPortOperFxPortIndex	101
fcFxPortID	101
fcFPortAttachedPortName	102
fcFPortConnectedPort	102
fcFxPortBbCreditAvailable	102
fcFxPortOperMode	102
fcFxPortAdminMode	102
Fx_Port physical level table	102
fcFxPortPhysTable	102
fcFxPortPhysEntry	102
fcFxPortPhysModuleIndex	103
fcFxPortPhysFxPortIndex	103
fcFxPortPhysAdminStatus	103
fcFxPortPhysOperStatus	103
fcFxPortPhysLastChange	103
fcFxPortPhysRttov	104
Fx_Port fabric login table	104
fcFxlogiTable	104
fcFxlogiEntry	104
fcFxlogiModuleIndex	104
fcFxlogiFxPortIndex	104
fcFxlogiNxPortIndex	104
fcFxPortFcphVersionAgreed	104
fcFxPortNxPortBbCredit	105
fcFxPortNxPortRxDataFieldSize	105
fcFxPortCosSuppAgreed	105
fcFxPortIntermixSuppAgreed	105
fcFxPortStackedConnModeAgreed	105
fcFxPortClass2SeqDelivAgreed	105
fcFxPortClass3SeqDelivAgreed	105
fcFxPortNxPortName	106
fcFxPortConnectedNxPort	106
fcFxPortBbCreditModel	106
fcFeError group	106
Fx_Port error table	106
fcFxPortErrorTable	106
fcFxPortErrorEntry	106
fcFxPortErrorModuleIndex	106
fcFxPortErrorFxPortIndex	107
fcFxPortLinkFailures	107
fcFxPortSyncLosses	107
fcFxPortSigLosses	107
fcFxPortPrimSeqProtoErrors	107
fcFxPortInvalidTxWords	107
fcFxPortInvalidCrcs	107
fcFxPortDelimiterErrors	107
fcFxPortAddressIdErrors	107
fcFxPortLinkResetIns	108
fcFxPortLinkResetOuts	108
fcFxPortOlsIns	108
fcFxPortOlsOuts	108
fcFeAcct group	108
fcFeCap group	108
Fx_Port capability table	108
fcFxPortCapTable	108
fcFxPortCapEntry	108
fcFxPortCapModuleIndex	108
fcFxPortCapFxPortIndex	109
fcFxPortCapFcphVersionHigh	109
fcFxPortCapFcphVersionLow	109
fcFxPortCapBbCreditMax	109
fcFxPortCapBbCreditMin	109
fcFxPortCapRxDataFieldSizeMax	109
fcFxPortCapRxDataFieldSizeMin	109
fcFxPortCapCos	109
fcFxPortCapIntermix	110
fcFxPortCapStackedConnMode	110
fcFxPortCapClass2SeqDeliv	110
fcFxPortCapClass3SeqDeliv	110
fcFxPortCapHoldTimeMax	110
fcFxPortCapHoldTimeMin	110
fcFxPortCapBaudRates	110
fcFxPortCapMedia	110
Entity MIB objects	111

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Understanding HP SNMP

Understanding MIBs

The MIB is a database of information monitored and managed on a device, in this case an HP

StorageWorks switch. The MIB structure can be represented by a tree hierarchy. The root splits into three

main branches: International Organization for Standardization (ISO), Consultative Committee for

International Telegraph and Telephone (CCITT), and joint ISO/CCITT. These branches have short text

strings and integers (OIDs) to identify them. Text strings describe object names, while integers allow

software to create compact, encoded representations of the names.

Each MIB variable is assigned an object identifier (OID). The OID is the sequence of numeric labels on the

nodes along a path from the root to the object. For example, as shown in

Figure 4

, the HP SW.MIB OID is:

1.3.6.1.4.1.1588

The corresponding name is:

iso.org.dod.internet.private.enterprise.bsci

The other branches are part of the standard MIBs. The portions relevant to configuring SNMP on an HP

StorageWorks switch are referenced in the remainder of this manual.

Figure 4

HP MIB tree location

Use a MIB browser to access the MIB variables; all MIB browsers perform queries and load MIBs.

Since different vendors vary the information in their private enterprise MIBs, it is necessary to verify their

information. The Fibre Channel MIB standards dictate that certain information be included in all MIBs; it is

the vendor’s responsibility to follow the standards. The standards are:

•

FibreAlliance (FA) MIB: HP supports version 3.0.

•

Fabric Element

(FE) MIB: accepted by the Internet Engineering Task Force (IETF).

HP supports FE_RCF2837.mib under the MIB-II branch in Fabric OS 4.x, 3.2.0, and 3.1.x and the

experimental version, FE_EXP.mib, in Fabric OS 2.6.x and 3.0.x. This latest version of the FE MIB

references the FRAMEWORK.MIB and, based on the MIB browser, it is necessary to load this MIB before

the FE.MIB. See ”

Loading HP MIBs

” on page 32 for more information.

iso (1)

org (3)

HP SW MIB

1.3.6.1.4.1.1588

dod (6)

internet (1)

experimental (3)

fibreChannel (42)

fcFe (1)

fcFabric (2)

enterprise (1)

private (4)

bcsi (1588)

mgmt (2)

mib-2 (1)

interface (2)

sysDescr (1)

system (1)

sysObjectID (2)

directory (1)