Avaya Configuring Ethernet, FDDI, and Token Ring Services Uživatelský manuál stáhnout pdf (Strana 39)

Configuring Ethernet Services

308623-14.00 Rev 00

2-15

Using the BCC

You enable or disable flow control using the fc-enable parameter. However, this

parameter is affected by the value of another parameter, speed-select. You access

the speed-select parameter by navigating to the auto-neg prompt (for example,

box; ethernet 2/1; auto-neg). Based on the value of the speed-select parameter,

the BCC either ignores or accepts the setting of the fc-enable parameter.

If you set the speed-select parameter to auto-negotiation, you must use the

fc-enable parameter to enable or disable flow control. The BCC ignores the setting

of the advertised-capabilities parameter, which you use to specify the line

configuration available to remote nodes that have automatic line negotiation

capability. You access the advertised-capabilities parameter by navigating to the

auto-neg prompt (for example,

box; ethernet 2/1; auto-neg).

For example, navigate to an Ethernet prompt (

box; ethernet 2/1) and enter:

ethernet/2/1# fc-enable enabled

ethernet/2/1# auto-neg

auto-neg/2/1# speed-select auto-negotiation

auto-neg/2/1#

However, if the interface speed is in fixed mode (that is, not set to

auto-negotiation), flow control is enabled or disabled based on the value of the

speed-select parameter.

If you set the speed-select parameter to 100base-x-fd, flow control is

automatically disabled, and the BCC ignores the setting of the fc-enable

parameter. For example, navigate to an Ethernet prompt (

box; ethernet 2/1) and

enter:

ethernet/2/1# auto-neg

auto-neg/2/1# speed-select 100base-x-fd

auto-neg/2/1#

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Avaya Configuring Ethernet, FDDI, and Token Ring Services Uživatelský manuál Strana 39