Brocade TurboIron 24X Series Configuration Guide - Manual (Page 221)

Brocade TurboIron 24X Series Configuration Guide 187
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Chapter
10
Configuring LLDP
In this chapter
• Terms used in this chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
• LLDP overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
• General operating principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
• MIB support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
• Syslog messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
• Configuring LLDP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
• Resetting LLDP statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
• Clearing cached LLDP neighbor information . . . . . . . . . . . . . . . . . . . . . . . . 211
This chapter describes how to configure the LLDP protocol:
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 enables network discovery between Network Connectivity devices (such as switches).
The information generated by LLDP 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 facilitate interoperability across multiple vendor devices. Devices running LLDP can
interoperate with third-party devices running LLDP.
The LLDP implementation adheres to the IEEE 802.1AB and TIA-1057 standards.
Terms used in this chapter
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).