H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 205)

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Figure 168 The Global Setup tab
3. Configure the global LLDP setup parameters as described in Table 62 .
4. Click Apply.
Table 62 Configuration items
Item Description
LLDP Enable Select from the list to enable or disable global LLDP.
CDP Compatibility
Select from the list to enable or disable CDP compatibility of LLDP.
IMPORTANT:
• To enable LLDP to be compatible with CDP on a port, you must set the CDP work
mode (or the CDP operating mode) on the port to TxRx in addition to enabling CDP
compatibility on the Global Setup tab.
• As the maximum TTL allowed by CDP is 255 seconds, you must make sure that the
product of the TTL multiplier and the LLDPDU transmit interval is less than 255
seconds for CDP-compatible LLDP to work properly with Cisco IP phones.
Fast LLDPDU Count Set the number of LLDPDUs sent each time fast LLDPDU transmission is triggered.
TTL Multiplier
Set the TTL multiplier.
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 LLDPDUs 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 TTL multiplier
× LLDPDU transit interval.
IMPORTANT:
• If the product of the TTL multiplier and the LLDPDU transmit interval is greater than
65535, the TTL carried in transmitted LLDPDUs takes 65535 seconds.
• As the maximum TTL allowed by CDP is 255 seconds, you must make sure that the
product of the TTL multiplier and the LLDPDU transmit interval is less than 255
seconds for CDP-compatible LLDP to work properly with Cisco IP phones.