Specifications

8-3
System Management Software Configuration Guide for Cisco IE 2000U and Connected Grid Switches
Chapter 8 Configuring LLDP and LLDP-MED
Prerequisites
Allows an endpoint to transmit detailed inventory information about itself to the switch, including
information hardware revision, firmware version, software version, serial number, manufacturer
name, model name, and asset ID TLV.
Prerequisites
• Type-Length-Value (TLV) types 0 through 127
• To support LLDP-MED, the following organizationally specific TLVs must be implemented:
– Extended Power-via-Media Dependent Interface (MDI)
– Inventory
– LLDP-MED Capabilities
– MAC/PHY Configuration Status
– Network Policy
– Port VLAN ID
Guidelines and Limitations
• Use of LLDP is limited to 802.1 media types such as Ethernet, Token Ring, and Fiber Distributed
Data Interface (FDDI) networks.
• The maximum number of neighbor entries per chassis is limited on MED-capable network
connectivity devices.
Default Settings
Feature Default Setting
LLDP global state Disabled
LLDP holdtime (before discarding) 120 seconds
LLDP timer (packet update frequency) 30 seconds
LLDP reinitialization delay 2 seconds
LLDP tlv-select Disabled to send and receive all TLVs
LLDP interface state Disabled
LLDP receive Enabled on network node interfaces (NNIs)
Disabled on enhanced network interfaces (ENIs)
Not supported on user network interfaces (UNIs)
LLDP transmit Enabled on NNIs
Disabled on ENIs
Not supported on UNIs
LLDP med-tlv-select Disabled to send all LLDP-MED TLVs