Brocade Communications Systems Brocade ICX 6650 - Manual (Page 210)

192 Brocade ICX 6650 Administration Guide
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LLDP configuration
8
LLDP configuration
This section describes how to enable and configure LLDP.
Table 44 lists the LLDP global-level tasks and the default behavior/value for each task.
LLDP configuration notes and considerations
• LLDP is supported on Ethernet interfaces only.
• If a port is 802.1X-enabled, the transmission and reception of LLDP packets will only take
place while the port is authorized.
• Cisco Discovery Protocol (CDP) and Brocade Discovery Protocol (FDP) run independently of
LLDP. Therefore, these discovery protocols can run simultaneously on the same device.
• By default, the Brocade device limits the number of neighbors per port to four, and staggers
the transmission of LLDP packets on different ports, in order to minimize any high-usage
spikes to the CPU.
• By default, the Brocade device forwards
• Ports that are in blocking mode (spanning tree) can still receive LLDP packets from a
forwarding port.
• Auto-negotiation status indicates what is being advertised by the port for 802.3
auto-negotiation.
TABLE 44 LLDP global configuration tasks and default behavior /value
Global task Default behavior / value when LLDP is enabled
Enabling LLDP on a global basis Disabled
Specifying the maximum number of LLDP
neighbors per device Automatically set to 392 neighbors per device
Specifying the maximum number of LLDP
neighbors per port Automatically set to 4 neighbors per port
Enabling SNMP notifications and Syslog messages Disabled
Changing the minimum time between SNMP traps
and Syslog messages Automatically set to 2 seconds when SNMP notifications and
Syslog messages for LLDP are enabled
Enabling and disabling TLV advertisements When LLDP transmit is enabled, by default, the Brocade
device will automatically advertise LLDP capabilities, except
for the system description, VLAN name, and power-via-MDI
information, which may be configured by the system
administrator.
Also, if desired, you can disable the advertisement of
individual TLVs.
Changing the minimum time between LLDP
transmissions Automatically set to 2 seconds
Changing the interval between regular LLDP
transmissions Automatically set to 30 seconds
Changing the holdtime multiplier for transmit TTL Automatically set to 4
Changing the minimum time between port
reinitializations Automatically set to 2 seconds