Configuring LLDP (CLI Procedure)
EX Series switches use Link Layer Discovery Protocol (LLDP) and Link Layer Discovery
Protocol–Media Endpoint Discovery (LLDP-MED) to learn and distribute device
information on network links. The information allows the switch to quickly identify a
variety of devices, resulting in a LAN that interoperates smoothly and efficiently.
This topic describes:
•
Enabling LLDP on Interfaces on page 2622
•
Configuring for Fast Start on page 2622
•
Adjusting LLDP Advertisement Settings on page 2622
•
Adjusting SNMP Notification Settings of LLDP Changes on page 2623
•
Specifying a Management Address for the LLDP Management TLV on page 2623
Enabling LLDP on Interfaces
LLDP is enabled on all interfaces by default. If it is disabled, you can enable LLDP by
configuring it on all interfaces or specific interfaces.
To configure LLDP on all interfaces or on a specific interface:
[edit protocols lldp]
user@switch#
set
interface
all
Configuring for Fast Start
You can specify the number of LLDP-MED advertisements sent from the switch in the
first second after it has detected an LLDP-capable device. The default is 3.
To configure the fast start value:
[edit protocols lldp]
user@switch#
set
fast-start
8
Adjusting LLDP Advertisement Settings
You can adjust the following settings for LLDP advertisements for troubleshooting or
verification purposes. For normal operations, we recommend that you do not adjust these
settings from the default values.
•
To specify the frequency at which LLDP advertisements are sent (in seconds):
[edit protocols lldp]
user@switch#
set
advertisement-interval
45
•
To determine the length of time LLDP information is held before it is discarded (the
multiplier value is used in combination with the
advertisement-interval
value):
[edit protocols lldp]
user@switch#
set
hold-multiplier
5
Copyright © 2010, Juniper Networks, Inc.
2622
Complete Software Guide for Junos
®
OS for EX Series Ethernet Switches, Release 10.3
Summary of Contents for JUNOS OS 10.3 - SOFTWARE
Page 325: ...CHAPTER 17 Operational Mode Commands for System Setup 229 Copyright 2010 Juniper Networks Inc ...
Page 1323: ...CHAPTER 56 Operational Mode Commands for Interfaces 1227 Copyright 2010 Juniper Networks Inc ...
Page 2841: ...CHAPTER 86 Operational Commands for 802 1X 2745 Copyright 2010 Juniper Networks Inc ...
Page 3367: ...CHAPTER 113 Operational Mode Commands for CoS 3271 Copyright 2010 Juniper Networks Inc ...
Page 3435: ...CHAPTER 120 Operational Mode Commands for PoE 3339 Copyright 2010 Juniper Networks Inc ...
Page 3529: ...CHAPTER 126 Operational Mode Commands for MPLS 3433 Copyright 2010 Juniper Networks Inc ...