Brocade Communications Systems 6650 manual Lldp terms used in this chapter

8 LLDP terms used in this chapter

TABLE 41 Supported LLDP features

Feature	Brocade ICX
	6650
LLDP-MED network policy	Yes
LLDP statistics and configuration details	Yes

This chapter describes how to configure the following protocols:

Link layer discovery protocol (LLDP) – The Layer 2 network discovery protocol described in the IEEE 802.1AB standard, Station and Media Access Control Connectivity Discovery. This protocol enables a station to advertise its capabilities to, and to discover, other LLDP-enabled stations in the same 802 LAN segments.

LLDP media endpoint devices (LLDP-MED)– The Layer 2 network discovery protocol extension described in the ANSI/TIA-1057 standard, LLDP for Media Endpoint Devices. This protocol enables a switch to configure and manage connected Media Endpoint devices that need to send media streams across the network (e.g., IP telephones and security cameras).

LLDP enables network discovery between Network Connectivity devices (such as switches), whereas LLDP-MED enables network discovery at the edge of the network, between Network Connectivity devices and media Endpoint devices (such as IP phones).

The information generated by LLDP and LLDP-MED can be used to diagnose and troubleshoot misconfigurations on both sides of a link. For example, the information generated can be used to discover devices with misconfigured or unreachable IP addresses, and to detect port speed and duplex mismatches.

LLDP and LLDP-MED facilitate interoperability across multiple vendor devices. Brocade devices running LLDP can interoperate with third-party devices running LLDP.

The Brocade LLDP and LLDP-MED implementation adheres to the IEEE 802.1AB and TIA-1057 standards.

LLDP terms used in this chapter

Endpoint device – An LLDP-MED device located at the network edge, that provides some aspect of IP communications service based on IEEE 802 LAN technology. An Endpoint device is classified in one of three class types (I, II, or III) and can be an IP telephone, softphone, or conference bridge, among others.

LLDP agent – The protocol entity that implements LLDP for a particular IEEE 802 device. Depending on the configured LLDP operating mode, an LLDP agent can send and receive LLDP advertisements (frames), or send LLDP advertisements only, or receive LLDP advertisements only.

LLDPDU (LLDP Data Unit) – A unit of information in an LLDP packet that consists of a sequence of short variable length information elements, known as TLVs. LLDP pass-through is not supported in conformance to IEEE standard.

MIB (Management Information Base) – A virtual database that identifies each manageable object by its name, syntax, accessibility, and status, along with a text description and unique object identifier (OID). The database is accessible by a Network Management Station (NMS) using a management protocol such as the Simple Network Management Protocol (SNMP).

182	Brocade ICX 6650 Administration Guide
	53-1002600-01