DNOS-PFC-MIB

All MIBs › DNOS-PFC-MIB

Organization: Dell, Inc.

Last Updated: 2011-01-26

Category: Technology: QoS, Vendor: Dell/DNOS

Description: Manages Priority Flow Control (PFC) configuration for lossless data center Ethernet on Dell DNOS switches.

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What Is DNOS-PFC-MIB?

DNOS-PFC-MIB is a Dell-specific MIB (registered under the dnOS enterprise subtree as fastPathPFC) that manages IEEE 802.1Qbb Priority-based Flow Control on Dell PowerConnect/Force10 DNOS switches used for lossless data center Ethernet (FCoE/iSCSI/RoCE fabrics). It exposes per-interface PFC administration and operational state (agentPfcIntfAdminMode, agentPfcIntfPfcStatus) in the agentPfcTable, per-priority pause/no-pause actions negotiated via DCBX (agentPfcAction, agentPfcOperAction, agentPfcAdvAction, agentPfcPeerAction) in agentPfcActionTable, and both aggregate and per-priority PFC frame counters (agentPfcTotalIntfPfcFramesRx/Tx, agentPfcIntfPfcPriorityFramesRx/Tx). Monitoring this MIB reveals whether lossless-queue negotiation with a DCB peer succeeded and whether pause frames are actually being exchanged, which is critical for diagnosing storage traffic drops or unexpected congestion in converged Ethernet fabrics. It depends on the underlying IF-MIB ifIndex space and DCBX peer discovery mechanisms on the switch. Administrators managing Dell data-center switches can download the DNOS-PFC-MIB file to load it into their MIB browser and track PFC health across interfaces.

IPNetwork Monitor allows you to monitor SNMP objects defined in DNOS-PFC-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 PowerConnect / Force10 DNOS switches (data center Ethernet fabric)

Monitoring Examples

An operator polls agentPfcIntfPfcStatus and agentPfcIntfPeerDetected for a storage-facing interface to confirm PFC is active and a DCBX peer was found, then checks agentPfcIntfPeerCfgCompatible and agentPfcIntfPeerIncompatibleCfgCount; a rising incompatible-configuration count alongside an inactive PFC status would indicate a lossless-fabric misconfiguration causing drops on that link.

What Can Be Monitored

per-interface PFC admin/operational status
per-priority pause/no-pause action state
DCBX peer detection and willingness
peer configuration compatibility counters
aggregate and per-priority PFC frame counters
link delay allowance

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

OIDs

OID symbolic	OID numeric	Type	Access	Description
fastPathPFC	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47			The MIB definitions Priority based Flow Control Feature.
agentPfcCfgGroup	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1
agentPfcTable	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.1		not-accessible	A table providing configuration of PFC Profile per interface.
agentPfcEntry	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.1.1		not-accessible	PFC Profile configuration for a port.
NUM agentPfcIntfIndex	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.1.1.1	InterfaceIndex	not-accessible	This is a unique index for an entry in the agentPfcTable. A non-zero value indicates the ifIndex for the corresponding interface entry in the ifTable.
INT agentPfcIntfAdminMode	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.1.1.2	INTEGER	read-write	Enables/disables PFC profile on an interface.
INT agentPfcIntfPfcStatus	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.1.1.3	INTEGER	read-only	Shows the operational-status of PFC on an interface.
U32 agentPfcTotalIntfPfcFramesRx	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.1.1.4	Unsigned32	read-only	Total Received PFC Frames on this interface.
U32 agentPfcTotalIntfPfcFramesTx	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.1.1.5	Unsigned32	read-only	Total Transmitted PFC Frames on this interface.
U32 agentPfcIntfLinkDelayAllowance	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.1.1.6	Unsigned32	read-only	Indicates the Link Delay Allowance on this interface, measured in bit times.
INT agentPfcIntfAdvWilling	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.1.1.7	INTEGER	read-only	Indicates if the interface is willing to accept PFC configuration via DCBX.
INT agentPfcIntfPeerDetected	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.1.1.8	INTEGER	read-only	Indicates if the peer has been detected via DCBX.
MAC agentPfcIntfPeerMacAddr	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.1.1.9	MacAddress	read-only	MAC address of the peer detected via DCBX. If there is no peer, this will be a null MAC address.
INT agentPfcIntfPeerWilling	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.1.1.10	INTEGER	read-only	Indicates if the peer is willing to accept PFC configuration via DCBX.
INT agentPfcIntfPeerMBCStatus	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.1.1.11	INTEGER	read-only	Indicates if the peer has MACSEC bypass capability.
U32 agentPfcIntfPeerCapability	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.1.1.12	Unsigned32	read-only	Indicates the number of no-drop priorities supported by the peer. If there is no peer, this will be zero.
INT agentPfcIntfPeerCfgCompatible	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.1.1.13	INTEGER	read-only	Indicates if the peer's PFC configuration is compatible.
U32 agentPfcIntfPeerCompatibleCfgCount	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.1.1.14	Unsigned32	read-only	Indicates the number of compatible PFC configurations received from the peer. Does not count duplicate configurations.
U32 agentPfcIntfPeerIncompatibleCfgCount	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.1.1.15	Unsigned32	read-only	Indicates the number of incompatible PFC configurations received from the peer.
agentPfcActionTable	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.2		not-accessible	A table providing priority and action mappings configuration of PFC.
agentPfcActionEntry	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.2.1		not-accessible	PFC Action Profile configuration for a port.
U32 agentPfcPriority	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.2.1.1	Unsigned32	not-accessible	This is a unique index for an entry in the agentPfcActionTable. A non-zero value indicates the CosQueue Priority.
INT agentPfcAction	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.2.1.2	INTEGER	read-write	Set Drop/No-Drop action in PFC profile for the corresponding priority.
INT agentPfcOperAction	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.2.1.3	INTEGER	read-only	The operational Drop/No-Drop action in PFC profile for the corresponding priority.
INT agentPfcAdvAction	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.2.1.4	INTEGER	read-only	The advertised Drop/No-Drop action in PFC profile for the corresponding priority.
INT agentPfcPeerAction	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.2.1.5	INTEGER	read-only	The peer's Drop/No-Drop action in PFC profile for the corresponding priority.
agentPfcIntfStatsPerPriorityTable	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.3		not-accessible	A table providing statistics of PFC per interface per priority.
agentPfcIntfStatsPerPriorityEntry	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.3.1		not-accessible	PFC Stats for a priority and for a port.
U32 agentPfcIntfPfcPriorityFramesRx	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.3.1.1	Unsigned32	read-only	Received PFC Frames on this interface for a priority.
U32 agentPfcIntfPfcPriorityFramesTx	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.47.1.3.1.2	Unsigned32	read-only	Transmitted PFC Frames on this interface for a priority.

RFC description

Priority-based Flow Control (PFC) configuration for Dell Networking switches.

Start monitoring Dell PowerConnect/Force10 DNOS switch (802.1Qbb Priority-based Flow Control) 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-PFC-MIB

What Is DNOS-PFC-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description