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By default, no timeout is set for receiving LLDP frames, and the device does not report no LLDP
neighbor events.
Enabling LLDP polling
About LLDP polling
With LLDP polling enabled, a device periodically searches for local configuration changes. When the
device detects a configuration change, it sends LLDP frames to inform neighboring devices of the
change.
Procedure
1. Enter system view.
system-view
2. Enter interface view.
interface interface-type interface-number
3. Enable LLDP polling and set the polling interval.
{ In Layer 2/Layer 3 Ethernet interface view or management Ethernet interface view:
lldp
[ agent { nearest-customer | nearest-nontpmr } ]
check-change-interval interval
{ In Layer 2/Layer 3 aggregate interface view:
lldp agent
{ nearest-customer | nearest-nontpmr }
check-change-interval interval
{ In IRF physical interface view:
lldp check-change-interval
interval
By default, LLDP polling is disabled.
Disabling LLDP PVID inconsistency check
About LLDP PVID inconsistency check
By default, when the system receives an LLDP packet, it compares the PVID value contained in the
packet with the PVID configured on the receiving interface. If the two PVIDs do not match, a log
message will be printed to notify the user.
You can disable PVID inconsistency check if different PVIDs are required on a link.
Procedure
1. Enter system view.
system-view
2. Disable LLDP PVID inconsistency check.
lldp ignore-pvid-inconsistency
By default, LLDP PVID inconsistency check is enabled.
Configuring CDP compatibility
About CDP compatibility
To enable your device to exchange information with a directly connected Cisco device that supports
only CDP, you must enable CDP compatibility.
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