
Configuring Ethernet, FDDI, and Token Ring Services
2-6 117020-A Rev. A
Either accept the default of five BofL Retries, or specify a value from 1 to 60. Use
this parameter in conjunction with the BofL Timeout Divisor and BofL Timeout
parameters to decrease or increase the time it takes the router to declare an
interface down.
Setting the BofL Timeout Divisor
By default, the router uses the value of the BofL Timeout parameter to determine
the time period between transmissions of BofL messages from an Ethernet
interface. The actual interval between BofL transmissions is the value of the BofL
Timeout parameter divided by the value of the BofL Timeout Divisor parameter.
When BofL Timout Divisor is set to the default value of 1, it has no effect on the
value of BofL Timeout. When set to a value greater than 1, the BofL Timeout
Divisor reduces the value of BofL Timeout.
When you configure router redundancy on an interface, Site Manager
automatically sets the BofL Timeout Divisor parameter to 10. This reduces the
time between BofL transmissions, which reduces the time it takes the router to
declare a circuit down.
Set the value of this parameter to an integer from 2 to 100 if you want a BofL
timeout to be detected in less than one second. Leave this parameter set to 1 and
use the BofL Timeout parameter for 1- to 5-second timeout values.
For example, with the BofL Timeout parameter set to 5 seconds and the BofL
Timeout Divisor set to 10, the router sends a BofL message every 0.5 second (5
divided by 10). With BofL Timeout set to 5 seconds and the BofL Timeout Divisor
set to 1, transmissions are every 5 seconds.
Site Manager: BofL Retries parameter: page A-3
Site Manager: BofL Timeout Divisor parameter: page A-4
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