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FortiGate Administration Guide - FirewallShop.com

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Switch (<strong>FortiGate</strong>-224B only)<br />

Using Spanning-Tree Protocol<br />

Role<br />

Priority<br />

Path Cost<br />

Point-to-Point<br />

Edge Port<br />

Edit icon<br />

View icon<br />

Blocking<br />

Discarding<br />

Learning<br />

Listening<br />

Fowarding<br />

One of:<br />

Alternate<br />

Backup<br />

Designated<br />

Disabled<br />

Root<br />

The port does not forward packets, but responds<br />

to management messages. This applies only to<br />

STP mode.<br />

The port does not forward packets. This applies<br />

in RSTP mode only.<br />

The port is preparing to enter the Forwarding<br />

state.<br />

A transitional state between Blocking and<br />

Learning. This applies only to STP mode.<br />

The port forwards packets.<br />

The port is on an alternate path to the root switch.<br />

The port is a backup for the designated port path<br />

toward the leaves of the spanning tree. This<br />

occurs in RSTP mode when a switch has two or<br />

more connections to a shared LAN segment or<br />

when a point-to-point link creates a loop.<br />

The port is the lowest cost path from the LAN to<br />

the root switch.<br />

The port has no role in the STP network. This<br />

applies in RSTP mode only.<br />

The port provides the best (lowest cost) path<br />

when the switch forwards packets to the root<br />

switch.<br />

A priority value from 0 to 240 in steps of 16. A lower number is a<br />

higher priority. You can modify this value. See “Configuring<br />

Spanning-Tree VLAN port settings” on page 218.<br />

A value based on the speed of the interface. You can modify this<br />

value. See “Configuring Spanning-Tree VLAN port settings” on<br />

page 218.<br />

A point-to-point port cannot create a loop. It can enter the<br />

Forwarding state without delay.<br />

An edge port connects to a single device and thus cannot create a<br />

loop. It can enter the Forwarding state without delay.<br />

Edit the STP settings for the port.<br />

View the STP status of the port.<br />

Viewing Spanning-Tree VLAN information<br />

Go to Switch > Protocols > Spanning-Tree and select the View icon for a VLAN<br />

to view spanning-tree information about the VLAN.<br />

<strong>FortiGate</strong> Version 3.0 MR5 <strong>Administration</strong> <strong>Guide</strong><br />

01-30005-0203-20070830 217

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