
Customizing LAN Interfaces
114078 Rev. A 3-9
By default, BofL messages are enabled when you add the interface. You can
disable and reenable BofL messages on an interface.
Setting the BofL Interval
The BofL interval is how long the router waits before disabling the LLC interface
when the link becomes unavailable and BofL is enabled.
By default, the BofL interval is 5 seconds. You can change the interval of BofL
messages on an interface to a value from 1 through 60 seconds.
Enabling or Disabling Hardware Filtering
With hardware filtering enabled, the interface drops local frames instead of
copying them into system memory to be processed by the bridge software. Local
frames contain both destination and source MAC addresses that the router has
learned on the interface. Bridge software teaches the hardware filter which MAC
addresses are local to an interface. Enabling hardware filtering improves bridging
software performance because router resources are not used to receive and reject
local frames.
Hardware filtering is disabled by default on FDDI interfaces. You can enable or
disable hardware filtering on an interface.
Site Manager: BofL Enable parameter: page A-5
Site Manager: BofL Timeout parameter: page A-5
Site Manager: Hardware Filter parameter: page A-7
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