163To do… Use the command… RemarksAllow LLDP to advertise themanagement address in LLDPDUs andconfigure the advertised managementaddresslldp management-address-tlv[ ip-address ]OptionalBy default, the managementaddress is sent through LLDPDUs.For a Layer 2 Ethernet port, themanagement address is the main IPaddress of the lowest-ID VLANcarried on the port. If none of thecarried VLANs is assigned an IPaddress, no management addresswill be advertised.Configure the encoding format of themanagement address as characterstringlldpmanagement-address-formatstringOptionalBy default, the managementaddress is encapsulated in thenumeric format.Setting other LLDP parametersThe Time To Live TLV carried in an LLDPDU determines how long the device information carried in theLLDPDU can be saved on a recipient device.By setting the TTL multiplier, you can configure the TTL of locally sent LLDPDUs, which determines howlong information about the local device can be saved on a neighbor device. The TTL is expressed usingthe following formula:TTL = Min (65535, (TTL multiplier × LLDPDU transmit interval))As the expression shows, the TTL can be up to 65535 seconds. TTLs greater than 65535 will be roundeddown to 65535 seconds.Follow these steps to change the TTL multiplier:To do… Use the command… RemarksEnter system view system-view —Set the TTL multiplier lldp hold-multiplier value Optional4 by default.Set the LLDPDU transmit interval lldp timer tx-interval interval Optional30 seconds by defaultSet LLDPDU transmit delay lldp timer tx-delay delay Optional2 seconds by defaultSet the number of LLDPDUs senteach time fast LLDPDU transmissionis triggeredlldp fast-count count Optional3 by defaultNOTE:To ensure that the LLDP neighbors can receive LLDPDUs to update information about the current devicebefore it is aged out, configure both the LLDPDU transmit interval and delay to be less than the TTL.
