DELL-NETWORKING-DCB-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsDELL-NETWORKING-DCB-MIB

Organization: Dell Inc.

Last Updated: 2012-04-16

Category: Quality of Service, Vendor: Dell

Description: Manages Data Center Bridging (DCB) configuration and priority flow control for Dell Networking.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) 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.

What Is DELL-NETWORKING-DCB-MIB?

DELL-NETWORKING-DCB-MIB is a Dell Networking OS proprietary extension MIB for Data Center Bridging (DCB) and its DCBX exchange protocol, covering lossless Ethernet features used in converged data center fabrics. Its object groups include dellNetDcbSystem for overall DCB system state, dellNetDcbApplicationObjects for per-application (e.g., FCoE/iSCSI) priority mapping, dellNetDCBXObjects for DCB Exchange protocol negotiation state with neighbors, dellNetETSObjects for Enhanced Transmission Selection bandwidth group configuration, and dellNetDcbNotificationObjects for related traps. It is used to monitor the software/protocol status of DCB features, such as whether DCBX negotiation with a neighboring switch or converged network adapter succeeded, whether ETS bandwidth allocations are being honored, and whether priority-flow-control-dependent applications are correctly classified, which reveals converged-fabric misconfigurations that could cause storage or lossless traffic to be dropped. It directly depends on the IEEE 802.1Qaz (ETS/DCBX) and related Data Center Bridging standards. It is deployed on Dell Networking switches in converged data center fabrics carrying FCoE, iSCSI, or other lossless-Ethernet-dependent traffic alongside standard LAN traffic. Network engineers evaluating or troubleshooting this functionality can download the DELL-NETWORKING-DCB-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DELL-NETWORKING-DCB-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 Networking switches (Dell EMC Networking / Force10 OS platforms)

Monitoring Examples

An admin checks dellNetDCBXObjects to confirm DCBX negotiation completed successfully with an adjacent converged network adapter or switch, since a stalled or mismatched negotiation would prevent lossless behavior from being established. Reviewing dellNetETSObjects bandwidth-group settings verifies that FCoE or iSCSI traffic classes are receiving their configured share of link bandwidth rather than being starved by best-effort LAN traffic. Monitoring dellNetDcbNotificationObjects for DCB-related traps alerts the admin the moment a peer's DCB configuration changes or a negotiation failure occurs, which could otherwise silently degrade converged storage performance.

What Can Be Monitored

  • DCB system status
  • DCBX neighbor negotiation state
  • ETS bandwidth group allocation
  • application priority mapping (e.g. FCoE/iSCSI)
  • DCB-related trap notifications
Imported Objects

From DELL-NETWORKING-SMI

dellNetMgmtOBJECT-IDENTITY

From IF-MIB

InterfaceIndex

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

MacAddress
TEXTUAL-CONVENTION
TruthValue

How to Use in IPNetwork Monitor

Example using dellNetDCBXPortMultiplePeerCount OID:

Select a Dell Networking switch (Data Center Bridging/DCBX) 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 dellNetDCBXPortMultiplePeerCount into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. Indicates number of times multiple peers were detected. 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 Counter32-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

RFC description

Dell Networking Data Center Bridging (DCB) MIB providing SNMP management objects for DCB configuration and control on Dell network switches. Includes port-level DCB control parameters for network quality of service and bridging operations.

Start monitoring Dell Networking switch (Data Center Bridging/DCBX) 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 DELL-NETWORKING-DCB-MIB