Avaya Configuring Ethernet, FDDI, and Token Ring Services Manual de usuario descargar pdf (Pagina 33)

Configuring Ethernet Services

117344-A Rev. A 2-9

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 1 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 value set to 5 seconds and the BofL timeout

divisor set to 10, the router sends a BofL message every 0.5 seconds (5 divided by

10). With BofL timeout set to 5 seconds and the BofL timeout divisor set to 1,

transmissions are every 5 seconds.

You can only set the BofL timeout divisor by using the BCC.

Using the BCC

To set the BofL timeout divisor, access an existing Ethernet line service and enter:

boﬂ-tmo-divisor

is a value between 2 and 100.

For example, to set the Boﬂ timeout divisor to 15:

box> ethernet slot 13 connector 1

ethernet/13/1> bofl-tmo-divisor 15

Enabling or Disabling Hardware Filtering

When you add an Ethernet circuit for a link module with hardware ﬁlter

capability, hardware ﬁltering is disabled by default.

With hardware ﬁltering enabled, the Ethernet interface drops local frames instead

of copying them into system memory to be processed by the bridge software.

Local frames are frames that 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, since the

router software does not need to determine whether to receive and reject local

frames.

You can enable or disable hardware ﬁltering on an interface. Enable hardware

ﬁltering only if the Ethernet link module has hardware ﬁlters and you enabled

bridge software.

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Avaya Configuring Ethernet, FDDI, and Token Ring Services Manual de usuario Pagina 33