DNOS-DCBX-MIB

All MIBs › DNOS-DCBX-MIB

Organization: Dell, Inc.

Last Updated: 2011-01-26

Category: Standard: IEEE 802, Technology: QoS, Vendor: Dell/DNOS

Description: Manages Data Center Bridging Exchange (DCBX) protocol configuration for converged data center networking on Dell DNOS.

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What Is DNOS-DCBX-MIB?

This is a Dell-specific MIB for Dell Networking OS (DNOS) devices that manages Data Center Bridging Exchange Protocol (DCBX) configuration, a protocol used in converged data center networks to negotiate lossless Ethernet parameters (like Priority Flow Control and ETS) between switches and adapters. It exposes configuration/status groups covering global DCBX settings on the switch. For monitoring hardware/software status, DCBX state indicates whether data center bridging capabilities have been successfully negotiated with directly connected peers, which is critical to ensuring storage traffic (e.g., FCoE) or other lossless traffic classes are not experiencing drops due to a failed negotiation. It depends on and extends underlying IEEE 802.1Qaz (ETS) and 802.1Qbb (PFC) data center bridging standards. It is typically deployed on Dell PowerSwitch/Force10 series switches in converged data center fabrics. Network engineers evaluating or troubleshooting this functionality can download the DNOS-DCBX-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DNOS-DCBX-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

Dell PowerSwitch / Force10 DNOS switch

Monitoring Examples

An administrator could poll agentDcbxGroup and agentDcbxGroupGlobalConfGroup to confirm DCBX is globally enabled and negotiated correctly across data center bridging-capable ports, which would reveal whether a connected server NIC or storage adapter successfully exchanged ETS/PFC parameters or is falling back to best-effort Ethernet behavior.

What Can Be Monitored

global DCBX enable status
DCBX negotiation state per port
data center bridging configuration group

Imported Objects

From DELL-REF-MIB

dnOS	OBJECT-IDENTITY

From IF-MIB

InterfaceIndex

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

MacAddress
RowStatus
TEXTUAL-CONVENTION

OIDs

OID symbolic	OID numeric	Type	Access	Description
fastPathDCBX	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58			The MIB definitions Data Center Bridging Exchange Protocol.
agentDcbxGroup	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1
agentDcbxTable	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.1		not-accessible	A table providing configuration of DCBX per interface.
agentDcbxEntry	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.1.1		not-accessible	DCBX configuration for a port.
NUM agentDcbxIntfIndex	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.1.1.1	InterfaceIndex	not-accessible	This is a unique index for an entry in the agentDcbxTable. A non-zero value indicates the ifIndex for the corresponding interface entry in the ifTable.
DCB agentDcbxAutoCfgPortRole	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.1.1.2	DcbxPortRole	read-write	Ports operating in the manual role do not have their configuration affected by peer devices or by internal propagation of configuration. These ports will advertise their configuration to their peer if DCBX is enabled on that port. Auto-up: Advertises a configuration, but is also willing to accept a configuration from the link-partner and propagate it internally to the auto-downstream ports as well as receive configuration propagated internally by other auto-upstream ports. Auto-down: Advertises a configuration but is not willing to accept one from the link partner. However, the port will accept a configuration propagated internally by the configuration source. Configuration Source:In this role, the port has been manually selected to be the configuration source. Configuration received over this port is propagated to the other auto-configuration ports.
DCB agentDcbxVersion	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.1.1.3	DcbxVersion	read-write	CIN is Cisco Intel Nuova DCBX (version 1.0). CEE is converged enhanced ethernet DCBX (version 1.06). IEEE is 802-1 az version. The default value is auto. DCBX supports the legacy implementations v1.0 (CIN) and v1.06 (CEE) in addition to standard IEEE version 2.4 DCBX. 1.DCBX starts in standard IEEE mode by sending an IEEE standard version 2.4 DCBX frame. If the peer responds, then IEEE standard version 2.4 DCBX is used,Starts means after a link up, a DCBX timeout (or multiple peer condition) or when commanded by the network operator. If DCBX receives a DCBX frame with an OUI indicating a legacy version, it immediately switches into legacy mode for the detected version and does not wait for the 3x LLDP fast timeout. 2.If no IEEE DCBX response is received within 3 times the LLDP fast transmit timeout period, DCBX immediately transmits a version 1.06 DCBX frame with the appropriate version number. If DCBX receives a DCBX frame with an OUI indicating IEEE standard support, it immediately switches into IEEE standard mode and does not wait for the timer. If DCBX receives a DCBX frame with an OUI indicating legacy mode and a version number indicating version 1.0 support, it immediately switches into legacy 1.0 mode and does not wait for the timer. 3.If no version 1.06 response is received within 3 times the DCBX fast transmit timeout period, DCBX falls back to version 1.0 and immediately transmits a version 1.0 frame. If no response is received within 3 times the DCBX fast transmit period, DCBX waits the standard LLDP timeout period, and then begins again with step 1. If DCBX receives a DCBX frame with an OUI indicating IEEE standard mode, it immediately switches into IEEE standard mode.
BIT agentDcbxSupportedTLVs	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.1.1.4	Bits	read-only	Bitmap that includes the supported set of DCBX LLDP TLVs the device is capable of and whose transmission is allowed on the local LLDP agent by network management. Having the bit 'pfc(0)' set indicates that the LLDP transmit PFC TLV as part of DCBX TLVs. Having the bit 'etcConfig(1)' set indicates that the LLDP transmit ETS configuration TLV as part of DCBX TLVs. Having the bit 'etsRecom(2)' set indicates that transmit ETS Recomdenation TLV as part of DCBX TLVs. Having the bit 'applicationPriority(3)' set indicates that the LLDP transmit applicationPriority TLV as part of DCBX TLVs.
BIT agentDcbxConfigTLVsTxEnable	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.1.1.5	Bits	read-write	Bitmap that includes the DCBX defined set of LLDP TLVs the device is capable of and whose transmission is allowed on the local LLDP agent by network management. Having the bit 'pfc(0)' set indicates that the LLDP transmit PFC TLV as part of DCBX TLVs. Having the bit 'etcConfig(1)' set indicates that the LLDP transmit ETS configuration TLV as part of DCBX TLVs. Having the bit 'etsRecom(2)' set indicates that transmit ETS Recomdenation TLV as part of DCBX TLVs. Having the bit 'applicationPriority(3)' set indicates that the LLDP transmit applicationPriority TLV as part of DCBX TLVs.
agentDcbxStatusTable	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.2		not-accessible	.
agentDcbxStatusEntry	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.2.1		not-accessible	.
DCB agentDcbxOperVersion	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.2.1.2	DcbxVersion	read-only	Specifies the DCBX mode in which the interface is currently operating.
MAC agentDcbxPeerMACaddress	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.2.1.3	MacAddress	read-only	MAC Address of the DCBX peer.
INT agentDcbxCfgSource	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.2.1.4	INTEGER	read-only	Indicates if this port is the source of configuration information for auto-* ports.
U32 agentDcbxMultiplePeerCount	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.2.1.5	Unsigned32	read-only	Indicates number of times multiple peers were detected. A duplicate peer is when more than one DCBX peer is detected on a port.
U32 agentDcbxPeerRemovedCount	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.2.1.6	Unsigned32	read-only	.
U32 agentDcbxPeerOperVersionNum	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.2.1.7	Unsigned32	read-only	Specifies the operational version of the peer DCBX device. Valid only when peer device is a CEE/CIN DCBX device.
U32 agentDcbxPeerMaxVersion	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.2.1.8	Unsigned32	read-only	Specifies the max version of the peer DCBX device. Valid only when peer device is CEE/CIN DCBX device.
U32 agentDcbxSeqNum	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.2.1.9	Unsigned32	read-only	Specifies the current sequence number that is sent in DCBX control TLVs in CEE/CIN Mode.
U32 agentDcbxAckNum	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.2.1.10	Unsigned32	read-only	Specifies the current ACK number that is to be sent to peer in DCBX control TLVs in CEE/CIN Mode.
U32 agentDcbxPeerRcvdAckNum	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.2.1.11	Unsigned32	read-only	Specifies the current ACK number that is sent by peer in DCBX control TLV in CEE/CIN Mode.
U32 agentDcbxTxCount	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.2.1.12	Unsigned32	read-only	The number of DCBX frames transmitted per interface.
U32 agentDcbxRxCount	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.2.1.13	Unsigned32	read-only	The number of DCBX frames received per interface.
U32 agentDcbxErrorFramesCount	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.2.1.14	Unsigned32	read-only	The number of DCBX frames discarded due to errors in the frame.
U32 agentDcbxUnknownTLVsCount	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.2.1.15	Unsigned32	read-only	The number of DCBX (PFC, ETS, Application Priority or other) TLVs not recognized.
agentDcbxGroupGlobalConfGroup	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.3
DCB agentDcbxGlobalConfVersion	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.58.1.3.1	DcbxVersion	read-write	CIN is Cisco Intel Nuova DCBX (version 1.0). CEE is converged enhanced ethernet DCBX (version 1.06). IEEE is 802-1 az version. The default value is auto. DCBX supports the legacy implementations v1.0 (CIN) and v1.06 (CEE) in addition to standard IEEE version 2.4 DCBX. 1.DCBX starts in standard IEEE mode by sending an IEEE standard version 2.4 DCBX frame. If the peer responds, then IEEE standard version 2.4 DCBX is used,Starts means after a link up, a DCBX timeout (or multiple peer condition) or when commanded by the network operator. If DCBX receives a DCBX frame with an OUI indicating a legacy version, it immediately switches into legacy mode for the detected version and does not wait for the 3x LLDP fast timeout. 2.If no IEEE DCBX response is received within 3 times the LLDP fast transmit timeout period, DCBX immediately transmits a version 1.06 DCBX frame with the appropriate version number. If DCBX receives a DCBX frame with an OUI indicating IEEE standard support, it immediately switches into IEEE standard mode and does not wait for the timer. If DCBX receives a DCBX frame with an OUI indicating legacy mode and a version number indicating version 1.0 support, it immediately switches into legacy 1.0 mode and does not wait for the timer. 3.If no version 1.06 response is received within 3 times the DCBX fast transmit timeout period, DCBX falls back to version 1.0 and immediately transmits a version 1.0 frame. If no response is received within 3 times the DCBX fast transmit period, DCBX waits the standard LLDP timeout period, and then begins again with step 1. If DCBX receives a DCBX frame with an OUI indicating IEEE standard mode, it immediately switches into IEEE standard mode.

RFC description

Data Center Bridging Exchange Protocol configuration for Dell switches.

Start monitoring Dell PowerSwitch/Force10 DNOS switch (Data Center Bridging Exchange) 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 DNOS-DCBX-MIB

What Is DNOS-DCBX-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description