Chapter 6: Lldp Commands - Extreme Networks ExtremeWare XOS Command Reference Manual

6 LLDP Commands
Beginning with ExtremeWare XOS version 11.2, the software supports the Link Layer Discovery
Protocol (LLDP). LLDP provides a standard method of discovering and representing the physical
network connections of a given network management domain. LLDP works together with Extreme
Discovery Protocol (EDP). LLDP works together with Extreme Discovery Protocol (EDP); it also works
independently, you do not have to run EDP to use LLDP. The LLDP neighbor discovery protocol allows
you to discover and maintain accurate network topologies in a multivendor environment.
The one-way protocol LLDP protocol transmits periodic advertisements containing device information
and media-specific configuration information to neighbors attached to the same network. LLDP agents
cannot solicit information from other agents by way of this protocol. The type length value (TLV) format
with link layer control frames is used to communicate with other LLDP agents. LLDP agents also
receive link layer control frames, extract the information in TLVs, and store them in LLDP MIB objects.
You configure LLDP per port, and each port can store received information for a maximum of four
neighboring ports. All LLDP configurations are saved across reboots when you issue the
save
command.
configuration
NOTE
Because each LLDP protocol data unit (LLDPDU) is limited to 1500 bytes, the system drops configured optional
TLVs that exceed this limit. To see if your system is dropping TLVs, issue the command.
show lldp statistics
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ExtremeWare XOS 11.3 Command Reference