Setup Guide

LLDP-MED Capabilities TLV
The LLDP-MED capabilities TLV communicates the types of TLVs that the endpoint device and the network connectivity device support.
LLDP-MED network connectivity devices must transmit the Network Policies TLV.
• The value of the LLDP-MED capabilities field in the TLV is a 2–octet bitmap, each bit represents an LLDP-MED capability (as shown in
the following table).
• The possible values of the LLDP-MED device type are shown in the following. The Dell EMC Networking system is a network
connectivity device, which is Type 4.
When you enable LLDP-MED in Dell EMC Networking OS (using the advertise med command), the system begins transmitting this
TLV.
Figure 77. LLDP-MED Capabilities TLV
Table 56. Dell EMC Networking OS LLDP-MED Capabilities
Bit Position TLV Dell EMC Networking OS Support
0 LLDP-MED Capabilities Yes
1 Network Policy Yes
2 Location Identification Yes
3 Extended Power via MDI-PSE Yes
4 Extended Power via MDI-PD No
5 Inventory No
6–15 reserved No
Table 57. LLDP-MED Device Types
Value Device Type
0 Type Not Defined
1 Endpoint Class 1
2 Endpoint Class 2
3 Endpoint Class 3
4 Network Connectivity
5–255 Reserved
LLDP-MED Network Policies TLV
A network policy in the context of LLDP-MED is a device’s VLAN configuration and associated Layer 2 and Layer 3 configurations.
LLDP-MED network policies TLV include:
• VLAN ID
• VLAN tagged or untagged status
• Layer 2 priority
• DSCP value
An integer represents the application type (the Type integer shown in the following table), which indicates a device function for which a
unique network policy is defined. An individual LLDP-MED network policy TLV is generated for each application type that you specify with
the Dell EMC Networking OS CLI (Advertising TLVs).
NOTE:
As shown in the following table, signaling is a series of control packets that are exchanged between an endpoint
device and a network connectivity device to establish and maintain a connection. These signal packets might require a
480 Link Layer Discovery Protocol (LLDP)