Changing The Minimum Time Between Lldp Transmissions - Brocade Communications Systems FastIron Administration Manual

Specifying the minimum time between SNMP traps and Syslog messages
Specifying the minimum time between SNMP traps and Syslog messages
When SNMP notifications and Syslog messages for LLDP are enabled, the device will send no more
than one SNMP notification and corresponding Syslog message within a five second period. If desired,
you can throttle the amount of time between transmission of SNMP traps (lldpRemTablesChange) and
Syslog messages from five seconds up to a value equal to one hour (3600 seconds).
NOTE
Because LLDP Syslog messages are rate limited, some LLDP information given by the system will not
match the current LLDP statistics (as shown in the show lldp statistics command output).
To change the minimum time interval between traps and Syslog messages, enter a command such as
the following.
device(config)#lldp snmp-notification-interval 60
When the above command is applied, the LLDP agent will send no more than one SNMP notification
and Syslog message every 60 seconds.
Syntax: [no] lldp snmp-notification-interval seconds
where seconds is a value between 5 and 3600. The default is 5 seconds.

Changing the minimum time between LLDP transmissions

The LLDP transmit delay timer limits the number of LLDP frames an LLDP agent can send within a
specified time frame. When you enable LLDP, the system automatically sets the LLDP transmit delay
timer to two seconds. If desired, you can change the default behavior from two seconds to a value
between 1 and 8192 seconds.
NOTE
The LLDP transmit delay timer must not be greater than one quarter of the LLDP transmission interval
(CLI command lldp transmit-interval ).
The LLDP transmit delay timer prevents an LLDP agent from transmitting a series of successive LLDP
frames during a short time period, when rapid changes occur in LLDP. It also increases the probability
that multiple changes, rather than single changes, will be reported in each LLDP frame.
To change the LLDP transmit delay timer, enter a command such as the following at the Global
CONFIG level of the CLI.
device(config)#lldp transmit-delay 7
The above command causes the LLDP agent to wait a minimum of seven seconds after transmitting
an LLDP frame and before sending another LLDP frame.
Syntax: [no] lldp transmit-delay seconds
where seconds is a value between 1 and 8192. The default is two seconds. Note that this value must
not be greater than one quarter of the LLDP transmission interval (CLI command lldp transmit-
interval ).
188 FastIron Ethernet Switch Administration Guide
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