Lantronix SISPM1040-3166-L Web User Guide Rev G PDF 14.13 MB - Page 28

Rx only, Tx only, Disabled, Enabled

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Transition Networks SISPM1040-3xxx-L Web User Guide Parameter descriptions: 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 5 - 32768 seconds. Tx Hold : Each LLDP frame contains information about how long 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 1 - 8192 seconds. Tx Reinit : When a port is disabled, LLDP is disabled or the switch is rebooted, an LLDP shutdown frame is transmitted to the neighboring units, signaling that the LLDP information isn't valid anymore. Tx Reinit controls the number of seconds between the shutdown frame and a new LLDP initialization. Valid values are 1 - 10 seconds. LLDP Port Configuration Port : The switch port number of the logical LLDP port. 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. CDP operation is restricted to decode incoming CDP frames (The switch doesn't transmit CDP frames). CDP frames are only decoded if LLDP on the port 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. Both the CDP and LLDP support "system capabilities", but the CDP capabilities cover capabilities that are not part of the LLDP. These capabilities are shown as "others" in the LLDP neighbors' table. 33763 Rev. G https://www.transition.com Page 28 of 496

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Transition Networks
SISPM1040-3xxx-L Web User Guide
33763 Rev. G
Page
28
of
496
Parameter descriptions
:
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 5 - 32768 seconds.
Tx Hold
: Each LLDP frame contains information about how long 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 1 - 8192 seconds.
Tx Reinit
: When a port is disabled, LLDP is disabled or the switch is rebooted, an LLDP shutdown frame is
transmitted to the neighboring units, signaling that the LLDP information isn't valid anymore. Tx Reinit controls
the number of seconds between the shutdown frame and a new LLDP initialization. Valid values are 1 - 10
seconds.
LLDP Port Configuration
Port
: The switch port number of the logical LLDP port.
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. CDP operation is restricted to decode incoming CDP frames (The switch
doesn't transmit CDP frames). CDP frames are only decoded if LLDP on the port 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 ne
ighbors’ 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 th
e 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.
Both the CDP and LLDP support "system capabilities", but the CDP capabilities cover capabilities that are not part
of the LLDP. These capabilities are shown as "others" in the LLDP neighbors’ table.