646 | Link Layer Discovery Protocol (LLDP)
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Table 30-3. TIA-1057 (LLDP-MED) Organizationally Specific TLVs
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 (Figure 30-4), each bit
represents an LLDP-MED capability (Table 30-4).
• The possible values of the LLDP-MED Device Type is listed in Table 30-5. The Dell Force10 system
is a Network Connectivity device, which is Type 4.
When you enable LLDP-MED in FTOS (using the command
advertise med) the system begins transmitting
this TLV.
Type Sub-type TLV Description
127 1 LLDP-MED Capabilities Indicates:
• whether the transmitting device supports LLDP-MED
• what LLDP-MED TLVs it supports
• LLDP device class
127 2 Network Policy Indicates the application type, VLAN ID, Layer 2 Priority, and
DSCP value
127 3 Location Identification Indicates the physical location of the device expressed in one of
three possible formats:
• Coordinate Based LCI
• Civic Address LCI
• Emergency Call Services ELIN
127 4 Extended Power via MDI Indicates power requirements, priority, and power status
Inventory Management TLVs
Implementation of this set of TLVs is optional in LLDP-MED
devices. None or all TLVs must be supported. FTOS does not
currently support these TLVs.
127 5 Inventory - Hardware Revision Indicates the hardware revision of the LLDP-MED device
127 6 Inventory - Firmware Revision Indicates the firmware revision of the LLDP-MED device
127 7 Inventory - Software Revision Indicates the software revision of the LLDP-MED device
127 8 Inventory - Serial Number Indicates the device serial number of the LLDP-MED device
127 9 Inventory - Manufacturer Name Indicates the manufacturer of the LLDP-MED device
127 10 Inventory - Model Name Indicates the model of the LLDP-MED device
127 11 Inventory - Asset ID Indicates a user specified device number to manage inventory
127 12-255 Reserved —
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