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• Configure LLDP to operate in TxRx mode on the port.
Procedure
1. Enter system view.
system-view
2. Enable CDP compatibility globally.
lldp compliance cdp
By default, CDP compatibility is disabled globally.
3. Enter Layer 2/Layer 3 Ethernet interface view or management Ethernet interface view.
interface interface-type interface-number
4. Configure CDP-compatible LLDP to operate in TxRx mode.
lldp compliance admin-status cdp txrx
By default, CDP-compatible LLDP operates in disable mode.
5. Set the voice VLAN ID carried in CDP packets.
cdp voice-vlan vlan-id
By default, no voice VLAN ID is configured to be carried in CDP packets.
Configuring LLDP trapping and LLDP-MED
trapping
About LLDP trapping and LLDP-MED trapping
LLDP trapping or LLDP-MED trapping notifies the network management system of events such as
newly detected neighboring devices and link failures.
To prevent excessive LLDP traps from being sent when the topology is unstable, set a trap
transmission interval for LLDP.
Procedure
1. Enter system view.
system-view
2. Enter interface view.
interface interface-type interface-number
3. Enable LLDP trapping.
{ In Layer 2/Layer 3 Ethernet interface view or management Ethernet interface view:
lldp [ agent { nearest-customer | nearest-nontpmr
} ] notification
remote-change enable
{ In Layer 2/Layer 3 aggregate interface view:
lldp agent
{ nearest-customer | nearest-nontpmr } notification
remote-change enable
{ In IRF physical interface view:
lldp notification remote-change enable
By default, LLDP trapping is disabled.
4. (In Layer 2/Layer 3 Ethernet interface view or management Ethernet interface view.) Enable
LLDP-MED trapping.
lldp notification med-topology-change enable
By default, LLDP-MED trapping is disabled.
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