Configuring fast start mode – Lucent Technologies P550 User Manual

Page 67

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Configuring the Cajun P550 Switch (Layer 2 & Layer 3)

Cajun P550/P220 Switch Operation Guide

3

-21

Configuring Fast Start Mode

Fast Start mode causes ports to begin forwarding traffic without waiting for the spanning
tree negotiation to complete.

Examples of situations where you may want to set a port to Fast Start mode are:

❒ End-station ports that do not need to participate in the full spanning tree

negotiation

❒ Loop-free topologies that do not need spanning tree protocol to resolve redundant

connections

To enable Fast Start for ports on a module associated with a selected bridge:

1. In the System Configuration section of the Web Agent window, click Modules

& Ports. The Module Information dialog box opens.

2. In the Switch Ports column, click on the switch port number listed for the

selected module. The Switch Ports dialog box opens.

Table 3-12. Example 2. Trunk to 3Com SuperStack

TM

Parameter

Recommended Setting

Port VLAN

Default - This parameter is ignored when using 3Com
VLANs.

Trunk Mode

3Com - Allows the switch to read the incoming VLAN tags.

VLAN Binding

Static - This parameter is ignored when using 3Com VLANs.

Automatic VLAN
Creation

Disable - This parameter is ignored when using 3Com VLANs.

Table 3-13. Example 3. Trunk to Bay Networks System 5000

TM

Parameter

Recommended Setting

Port VLAN

Default - Causes untagged packets to be assigned to the
default VLAN.

Trunk Mode

IEEE-802.1Q - Causes the port to send frames using the
IEEE-802.1Q format. This assumes that you have configured
the Bay Networks switch to use IEEE-802.1Q VLAN tagging as
well.

VLAN Binding

Bind to All - Binds the port to all VLANs known to the
switch.

Automatic VLAN
Creation

Enable - Causes the switch to learn new VLAN IDs that arrive
at the port, and then bind the port to these VLANs.

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