Brocade 6910 Ethernet Access Switch Configuration Guide (Supporting R2.2.0.0) - Manual (Page 994)

938 Brocade 6910 Ethernet Access Switch Configuration Guide
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Link Layer Discovery Protocol
3. Click Apply.
FIGURE 243 Configuring SMTP Alert Messages
Link Layer Discovery Protocol
Link Layer Discovery Protocol (LLDP) is used to discover basic information about neighboring
devices on the local broadcast domain. LLDP is a Layer 2 protocol that uses periodic broadcasts to
advertise information about the sending device. Advertised information is represented in Type
Length Value (TLV) format according to the IEEE 802.1ab standard, and can include details such as
device identification, capabilities and configuration settings. LLDP also defines how to store and
maintain information gathered about the neighboring network nodes it discovers.
Setting LLDP Timing Attributes
Use the Administration > LLDP (Configure Global) page to set attributes for general functions such
as globally enabling LLDP on the switch, setting the message ageout time, and setting the
frequency for broadcasting general advertisements or reports about changes in the LLDP MIB.
CLI References
• “LLDP Commands” on page 499
Parameters
These parameters are displayed:
• LLDP – Enables LLDP globally on the switch. (Default: Enabled)
• Transmission Interval – Configures the periodic transmit interval for LLDP advertisements.
(Range: 5-32768 seconds; Default: 30 seconds)
• Hold Time Multiplier – Configures the time-to-live (TTL) value sent in LLDP advertisements as
shown in the formula below. (Range: 2-10; Default: 4)
The time-to-live tells the receiving LLDP agent how long to retain all information pertaining to
the sending LLDP agent if it does not transmit updates in a timely manner.