f.The Global Setup tab

∙Select Enable from the LLDP Enable drop-down list.

∙Select Enable from the CDP Compatibility drop-down list.

∙Click Apply.

Configuration verification

# Display information about LLDP neighbors on Switch A.

Display information about LLDP neighbors on Switch A after completing the configuration. You can see that Switch A has discovered the Cisco IP phones attached to ports GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 and obtained their device information.

Configuration guidelines

When configuring LLDP, follow these guidelines:

Table 63 To make LLDP take effect, you must enable it both globally and on ports.

Table 64 When selecting TLVs to send in LLDPDUs, note the following:

○To advertise LLDP-MED TLVs, you must include the LLDP-MED capabilities set TLV.

○To remove the LLDP-MED capabilities set TLV, you must remove all other LLDP-MED TLVs.

○To remove the MAC/PHY configuration TLV, remove the LLDP-MED capabilities set TLV first.

○If the LLDP-MED capabilities set TLV is included, the MAC/PHY configuration/status TLV is included automatically.

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