You can override this default operation at the interface to disable receive or transmit operations. For more
information about how to selectively disable LLDP receive or transmit operations for an interface, see the
Disabling LLDP Receive and Transmit Operations for an Interface, on page 41.
To enable LLDP globally, complete these steps:
Configuring Global LLDP Operational Characteristics
The LLDP Default Configuration, on page 40 section describes the default operational characteristics for
LLDP. When you enable LLDP globally on the router using the lldp command, these defaults are used for
the protocol.
To modify the global LLDP operational characteristics such as the LLDP neighbor information holdtime,
initialization delay, or packet rate, complete these steps:
Disabling Transmission of Optional LLDP TLVs
Certain TLVs are classified as mandatory in LLDP packets, such as the Chassis ID, Port ID, and Time to Live
(TTL) TLVs. These TLVs must be present in every LLDP packet. You can suppress transmission of certain
other optional TLVs in LLDP packets.
To disable transmission of optional LLDP TLVs, complete these steps:
Disabling LLDP Receive and Transmit Operations for an Interface
When you enable LLDP globally on the router, all supported interfaces are automatically enabled for LLDP
receive and transmit operations. You can override this default by disabling these operations for a particular
interface.
To disable LLDP receive and transmit operations for an interface, complete these steps:
SUMMARY STEPS
1. configure
2. interface GigabitEthernet 0/2/0/0
3. lldp
4. receive disable
5. transmit disable
6. Do one of the following:
• end
• or
• commit
DETAILED STEPS
PurposeCommand or Action
Enters global configuration mode.configure
Example:
Step 1
Interface and Hardware Component Configuration Guide for Cisco NCS 6000 Series Routers, IOS XR Release 6.4.x
41
Configuring Ethernet Interfaces
Configuring Global LLDP Operational Characteristics
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