LLDP-EXT-DOT1-EVB-EXTENSIONS-MIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › LLDP-EXT-DOT1-EVB-EXTENSIONS-MIB

Organization: IEEE 802.1 Working Group

Last Updated: 2018-06-21

Category: Protocol: LLDP, Standard: IEEE 802

Description: IEEE 802.1 LLDP extension MIB for Edge Virtual Bridging (EVB) providing TLV objects to support VSI discovery and configuration.

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What Is LLDP-EXT-DOT1-EVB-EXTENSIONS-MIB?

LLDP-EXT-DOT1-EVB-EXTENSIONS-MIB is an IEEE 802.1 standards-based LLDP extension MIB that adds Edge Virtual Bridging (EVB) TLV objects, supporting Virtual Station Interface (VSI) discovery and configuration in data center virtualized-network environments, as defined by IEEE Std 802.1Q. It exposes configuration tables for EVB and CDCP (Channel Discovery and Configuration Protocol) TLV transmission enable flags, plus local TLV data tables holding the actual EVB and CDCP TLV string content advertised or received via LLDP. It is used to monitor the software/protocol status of edge virtual bridging discovery, revealing whether a port is correctly advertising/receiving EVB or CDCP TLVs, which is critical for confirming that virtual machine network interfaces are being discovered and configured correctly between a server's virtual switch and the physical bridge. It explicitly depends on and extends the base IEEE 802.1AB LLDP-MIB and the related 802.1Q LLDP dot1 extension framework, being rooted under the lldpXdot1StandAloneExtensions arc. It is typically deployed in data center network switches and virtualization hosts implementing Edge Virtual Bridging for VM network automation. Engineers implementing or auditing this functionality typically reference the LLDP-EXT-DOT1-EVB-EXTENSIONS-MIB RFC/standard documentation for the authoritative specification.

IPNetwork Monitor allows you to monitor SNMP objects defined in LLDP-EXT-DOT1-EVB-EXTENSIONS-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

  • vendor-neutral, IEEE 802.1 standards-based MIB, not tied to a specific manufacturer
  • data center switches supporting Edge Virtual Bridging
  • virtualization host network interfaces

Monitoring Examples

An administrator would poll lldpXdot1EvbConfigEvbTable (via lldpXdot1EvbConfigEvbEntry) to check lldpXdot1EvbConfigEvbTxEnable, confirming whether EVB TLV advertisement is enabled on a port, and lldpV2Xdot1LocEvbTlvTable/lldpV2Xdot1LocEvbTlvEntry to inspect the actual lldpV2Xdot1LocEvbTlvString content being advertised, detecting a misconfigured or missing VSI discovery capability. Similarly, lldpXdot1EvbConfigCdcpTable with lldpXdot1EvbConfigCdcpTxEnable and the corresponding lldpV2Xdot1LocCdcpTlvString would reveal whether Channel Discovery and Configuration Protocol data is being properly exchanged, which would flag a failure in dynamic VLAN/channel negotiation for virtual bridging.

What Can Be Monitored

  • EVB TLV transmit enable status per port
  • CDCP TLV transmit enable status per port
  • advertised EVB TLV content
  • advertised CDCP TLV content
Imported Objects

From IF-MIB

ifGeneralInformationGroupOBJECT-GROUP

From LLDP-EXT-DOT1-V2-MIB

lldpV2Xdot1MIBMODULE-IDENTITY

From LLDP-V2-MIB

lldpV2LocPortIfIndexOBJECT-TYPE
lldpV2PortConfigEntryOBJECT-TYPE
lldpV2RemIndexOBJECT-TYPE
lldpV2RemLocalDestMACAddressOBJECT-TYPE
lldpV2RemLocalIfIndexOBJECT-TYPE
lldpV2RemTimeMarkOBJECT-TYPE

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

TruthValue
OIDs

RFC description

IEEE 802.1 organizationally defined SNMP MIB extension module for LLDP (Link Layer Discovery Protocol) Edge Virtual Bridging (EVB) extensions, defining discovery information and management objects for virtual bridging in Ethernet networks.

Start monitoring Vendor-neutral IEEE 802.1 standard (data center switch/virtualization host, EVB) 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 LLDP-EXT-DOT1-EVB-EXTENSIONS-MIB