By default LLDP is not running on JUNOS, but it is trivially easy to enable. To activate LLDP on all interfaces:
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root@svalinn# set protocols lldp interface all
And to get information on both the local lldp status, and the neighbours:
root@svalinn# run show lldp local-information
LLDP Local Information details
Chassis ID : 78:19:f7:aa:5e:40
System name : svalinn
System descr : Juniper Networks, Inc. srx210b , version 12.1X44-D30.4 Build date: 2014-01-11 05:25:31 UTC
System Capabilities
Supported : Bridge Router
Enabled : Bridge Router
Interface name Parent Interface SNMP Index Interface description Status Tunneling
fe-0/0/7.0 - 527 fe-0/0/7.0 Up Disabled
root@svalinn# run show lldp detail
LLDP : Enabled
Advertisement interval : 30 seconds
Transmit delay : 2 seconds
Hold timer : 4 seconds
Notification interval : 0 Second(s)
Config Trap Interval : 0 seconds
Connection Hold timer : 300 seconds
LLDP MED : Disabled
Interface Parent Interface LLDP LLDP-MED Neighbor count
all - Enabled - 1
Interface Parent Interface Vlan-id Vlan-name
fe-0/0/7.0 - 5 vlan-oam
LLDP basic TLVs supported:
Chassis identifier, Port identifier, Port description, System name, System
description, System capabilities, Management address.
Supported LLDP 802 TLVs:
MAC/PHY configuration/status, Power via MDI, Link aggregation, Maximum frame
size, Port VLAN tag, Port VLAN name.
root@svalinn# run show lldp neighbors
Local Interface Parent Interface Chassis Id Port info System Name
fe-0/0/7.0 - 00:1c:73:61:ae:d7 Ethernet47 tm214.ire.aristanetworks.com
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