Siemens RUGGEDCOM ROX II User Manual page 710

Chapter 15
Network Discovery and Management
received LLDPDU. A remote system's information is removed from the database when an LLDPDU is received from
it with TTL TLV containing 0 in its information field.
CAUTION!
Security hazard – risk of unauthorized access and/or exploitation. LLDP is not secure by definition.
Avoid enabling LLDP on devices connected to external networks. Siemens recommends using LLDP only
in secure environments operating within a security perimeter.
NOTE
LLDP is implemented to keep a record of only one device per Ethernet port. Therefore, if there are
multiple devices sending LLDP information to a switch port on which LLDP is enabled, information
about the neighbor on that port will change constantly.
CONTENTS
• Section 15.1.1, "Configuring LLDP"
• Section 15.1.2, "Viewing Global Statistics and Advertised System Information"
• Section 15.1.3, "Viewing Statistics for LLDP Neighbors"
• Section 15.1.4, "Viewing Statistics for LLDP Ports"
Section 15.1.1
Configuring LLDP
To configure the Link Layer Discovery Protocol (LLDP), do the following:
1. Make sure the CLI is in Configuration mode.
Navigate to switch » net-discovery » lldp and configure the following parameter(s) as required:
2.
Parameter
enabled
tx-interval { tx-interval }
tx-hold { tx-hold }
reinit-delay { reinit-delay }
tx-delay { tx-delay }
664
Synopsis: { true, false }
Default: true
Enables the Link Layer Discovery Protocol (LLDP). Note that LLDP is enabled on a port
when LLDP is enabled globally and along with enabling per port setting in the Port LLDP
Parameters menu.
Synopsis: A 32-bit signed integer between 5 and 32768
Default: 30
The interval at which Link Layer Discovery Protocol (LLDP) frames are transmitted on
behalf of this LLDP agent.
Synopsis: A 32-bit signed integer between 2 and 10
Default: 4
The multiplier of the Tx Interval parameter that determines the actual time-to-live
(TTL) value used in an LLDPDU. The actual TTL value can be expressed by the following
formula: TTL = MIN(65535, (Tx Interval * Tx Hold))
Synopsis: A 32-bit signed integer between 1 and 10
Default: 2
The delay in seconds from when the value of the Admin Status parameter of a particular
port becomes 'Disbled' until re-initialization will be attempted.
Synopsis: A 32-bit signed integer between 1 and 8192
Default: 2
Description
RUGGEDCOM ROX II
CLI User Guide
Configuring LLDP