Configuration manual

Configuring LLDP
Fixed Switch Configuration Guide 13-7
– Maximum Frame Size — Advertises the maximum supported 802.3 frame size of the
sending station.
• LLDP-MED extension TLVs:
– Capabilities — Indicates the network connectivity device’s capabilities.
– Network Policy — Used to configure tagged/untagged VLAN ID/L2 priority/DSCP on
LLDP-MED endpoints (for example, IP phones).
– Location Identification — Provides the location identifier information to communication
endpoint devices, based on the configuration of the network connectivity device it is
connected to.
– Extended Power via MDI — Enables advanced power management between LLDP-MED
endpoints and network connectivity devices.
– Inventory Management — Includes hardware revision, firmware revision, software
revision, serial number, manufacturer name, model name, and asset ID.
Some TLVs support multiple subtypes. For example, Port ID is sent as an ifName (for example,
ge.1.1) between Enterasys devices, but when an LLDP-MED endpoint is detected on a port, that
TLV subtype changes to a network address (MAC address), and other MED TLVs are sent, as
defined by the MED spec.
Configuring LLDP
LLDP Configuration Commands
Table 13-1 lists LLDP configuration commands. The table indicates which commands are device
specific.
Table 13-1 LLDP Configuration Commands
Task Command
Set the time, in seconds, between successive LLDP
frame transmissions initiated by changes in the
LLDP local system information. Default value is 30
seconds.
set lldp tx-interval frequency
Set the time-to-live value used in LLDP frames sent
by this device. The time-to-live for LLDPDU data is
calculated by multiplying the transmit interval by the
hold multiplier. The default value is 4.
set lldp hold-multiplier multiplier-val
Set the minimum interval between LLDP
notifications sent by this device. LLDP notifications
are sent when a remote system change has been
detected. The default value is 5 seconds.
set lldp trap-interval frequency
Set the number of fast start LLDPDUs to be sent
when an LLDP-MED endpoint device is detected.
Network connectivity devices transmit only LLDP
TLVs in LLDPDUs until they detect that an LLDP-
MED endpoint device has connected to a port. At
that point, the network connectivity device starts
sending LLDP-MED TLVs at a fast start rate on that
port. The default value is 3.
set lldp med-fast-repeat count