H3C Technologies H3C S3100 Series Switches - Manual (Page 979)

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To do… Use the command… Remarks
Enter Ethernet interface view
interface interface-type
interface-number
Required
Enable LLDP to advertise
management address TLVs
and configure the advertised
management IP address
lldp
management-address-tlv
[ ip-address ]
Optional
By default, the management
address is sent through LLDPDUs.
The management address is the
main IP address of the lowest-ID
VLAN carried on the port. If none of
the carried VLANs is assigned an IP
address, no management address
will be advertised.
Setting Other LLDP Parameters
The TTL TLV carried in an LLDPDU determines how long the device information carried in the LLDPDU
can be saved on a recipient device.
You can configure the TTL of locally sent LLDP frames to determine how long information about the
local device can be saved on a neighbor device by setting the TTL multiplier. The TTL is expressed as
follows:
TTL = Min (65535, (TTL multiplier × LLDPDU transmit interval))
As the expression shows, the TTL can be up to 65535 seconds. TTLs greater than it will be rounded
down to 65535 seconds.
Follow these steps to change the TTL multiplier:
To do… Use the command… Remarks
Enter system view system-view —
Set the TTL multiplier lldp hold-multiplier value
Optional
4 by default.
Set the LLDPDU transmit
interval
lldp timer tx-interval interval
Optional
30 seconds by default
Set LLDPDU transmit delay lldp timer tx-delay delay
Optional
2 seconds by default
Set the number of LLDP frames
sent each time fast LLDPDU
transmission is triggered.
lldp fast-count count
Optional
3 by default
Both the LLDPDU transmit interval and delay must be less than the TTL to ensure that the LLDP
neighbors can receive LLDP frames to update information about the device you are configuring before
it is aged out.