Falcon R-Class | User Guide
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Table 4-155: LLDP Configuration Parameters
LLDP Parameters
Tx Interval
The switch is periodically transmitting LLDP frames to its neighbors for having the
network discovery information up to date. The interval between each LLDP frame
is determined by the Tx Interval value. Valid values are restricted to 5 - 32768
seconds.
Tx Hold
Each LLDP frame contains information about the length of time the information in
the LLDP frame shall be considered valid. The LLDP information valid period is set
to
Tx Hold
multiplied by
Tx Interval
seconds.
Valid values are restricted to 2 - 10 times.
Tx Delay
If some configuration is changed (e.g., the IP address) a new LLDP frame is
transmitted, but the time between the LLDP frames will always be at least the
value of
Tx Delay
in seconds. Tx Delay cannot be larger than a 1/4 of the
Tx Interval
value. Valid values are restricted to 1 - 8192 seconds.
Tx Reinit
When a port is disabled, LLDP is disabled or if the switch is rebooted, a LLDP
shutdown frame is transmitted to the neighbor units for signaling that the LLDP
information is not valid anymore.
Tx Reinit
controls the number of seconds
between the shutdown frame and a new LLDP initialization. Valid values are
restricted to 1
–
10 seconds.
LLDP Interface Configuration
Interface
The switch interface name of the logical LLDP interface.
Mode
Select the LLDP mode.
•
Rx only
: The switch will not send out LLDP information, but LLDP information
from neighbor units is analyzed.
•
Tx only
: The switch will drop LLDP information received from neighbors but
will send out LLDP information.
•
Disabled
: The switch will not send out LLDP information and will drop LLDP
information received from neighbors.
•
Enabled
: The switch will send out LLDP information and will analyze LLDP
information received from neighbors.
CDP Aware
Select CDP awareness.
The CDP operation is restricted to decoding incoming CDP frames (The switch does
not transmit CDP frames). CDP frames are only decoded if LLDP for the port is
enabled.
Only CDP TLVs that can be mapped into a corresponding field in the LLDP neighbors
table are decoded. All other TLVs are discarded (Unrecognized CDP TLVs and
discarded CDP frame are not shown in the LLDP statistic). CDP TLVs are mapped
into LLDP neighbors table as shown below.
CDP TLV "Device ID" is mapped into the LLDP "Chassis ID" field.
CDP TLV "Address" is mapped into the LLDP "Management Address" field. The CDP
address TLV can contain multiple addresses, but only the first address is shown in
the LLDP neighbors table.
