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Motorola CAJUN P880 User Manual

Page 59

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Cajun P880 Routing Switch Installation Guide

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3. From the Spanning Tree pull-down menu, select to Enable or

Disable spanning tree protocol on this port.

4. From the Fast Start pull-down menu, select to Enable or

Disable. When enabled, Fast Start mode ports begin forwarding
traffic without waiting for the spanning tree negotiation to
complete. Fast start eliminates the waiting time of listen and
learn states. Ports immediately enter the forward state.

5. From the Known Mode pull-down menu, select to Enable or

Disable. Selecting Enable limits the packets with unknown
unicast destination addresses flooded to this port. For example, if
a known end-station or file server is connected to the port,
there’s no need to flood unknown unicasts to that port. You
must manually enter a static MAC address for the station
actually attached to the port.

6. From the 3Com Mapping Table pull-down menu, select an

assignment to specify how incoming tagged frames from 3Com
equipment are mapped to Lucent VLANs. Refer to “Creating
3Com Mapping Tables”, in

the Cajun P550/P220 Switch Operation

Guide

, for more information on 3Com Mapping Tables.

7. Click APPLY to save your changes, or CANCEL to restore

previous settings.

Examples of Switch
Ports Settings for
Various VLAN
Connection Types

Use Table 16 through Table18 for recommended switch port settings
for each connection type.

Table 16. Example 1. Trunk to Cisco Catalyst 5000

TM

Parameter

Recommended Setting

Port VLAN

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

Trunk Mode

Multi-level - causes the port to send frames
using the multilevel format.

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.

VTP Snooping

Enable - cause the switch to update its VLANs
as they are created, deleted, or changed on the
Catalyst.