153
5-32768 seconds; Default: 30 seconds) This attribute must comply with the following rule:
(Transmission Interval * Transmission Hold Time)
≤ 65536,
and Transmissi
on Interval ≥ (4 * Transmission Delay)
◆
Tx Hold
– Configures the time-to-live (TTL) value sent in LLDP advertisements as shown
in the formula below. (Range: 2-10; Default: 3)
The time-to-live tells the receiving LLDP agent how long to retain all information pertaining
to the sending LLDP agent if it does not transmit updates in a timely manner.
TTL in seconds is based on the following rule:
(Transmission Interval * Transmission Hold Time)
≤ 65536.
Therefore, the default TTL is 30*3 = 90 seconds.
◆
Tx Delay
– Configures a delay between the successive transmission of advertisements
initiated by a change in local LLDP MIB variables. (Range: 1-8192 seconds; Default: 2
seconds)
The transmit delay is used to prevent a series of successive LLDP transmissions during a
short period of rapid changes in local LLDP MIB objects, and to increase the probability
that multiple, rather than single changes, are reported in each transmission.
This attribute must comply with the rule:
(4 * Transmission Delay)
≤ Transmission Interval
◆
Tx Reinit
– Configures the delay before attempting to re-initialize after LLDP ports are
disabled or the link goes down. (Range: 1-10 seconds; Default: 2 seconds)
When LLDP is re-initialized on a port, all information in the rem
ote system’s LLDP MIB
associated with this port is deleted.
LLDP Interface Attributes
◆
Port
– Port identifier.
◆
Mode
– Enables LLDP message transmit and receive modes for LLDP Protocol Data
Units. (Options: Disabled, Enabled - TxRx, Rx only, Tx only; Default: Disabled)
◆
CDP Aware
– Enables decoding of Cisco Discovery Protocol frames. (Default: Disabled)
If enabled, CDP TLVs that can be mapped into a corresponding field in the LLDP
neighbors table are decoded, all others are discarded. 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.
■ CDP TLV “Port ID” is mapped into the LLDP “Port ID” field.
■ CDP TLV “Version and Platform” is mapped into the LLDP “System Description” field.
Summary of Contents for GEP-1070
Page 80: ...80 authentication from any point within the network...
Page 168: ...168...