OPTICAL SYSTEMS DESIGN
DOC ID: 10118101
OSD2512 OPERATOR MANUAL
PAGE 162
LLDP PARAMETERS
Tx Interval
The switch periodically transmits 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 how long 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
seconds.
Tx
Delay
cannot be larger than 1/4 of the
Tx Interval
value. Valid values are restricted to 1 -
8192 seconds.
Tx Reinit
When a interface is disabled, LLDP is disabled or the switch is rebooted, a LLDP shutdown
frame is transmitted to the neighboring units, signaling that the LLDP information isn't valid
anymore.
Tx Reinit
controls the amount 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 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 doesn't
transmit CDP frames). CDP frames are only decoded if LLDP on the interface is enabled.
Only CDP TLVs that can be mapped to a corresponding field in the LLDP neighbors' table are
decoded. All other TLVs are discarded (Unrecognized CDP TLVs and discarded CDP frames
are not shown in the LLDP statistics.). CDP TLVs are mapped onto LLDP neighbors' table as
shown below.
CDP TLV "Device ID" is mapped to the LLDP "Chassis ID" field.
CDP TLV "Address" is mapped to 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.
CDP TLV "Port ID" is mapped to the LLDP "Port ID" field.
CDP TLV "Version and Platform" is mapped to the LLDP "System Description" field.
