SmartBridges sB3410 manual STP Settings Configuration

Models: sB3410

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2.7.5. STP Settings Configuration

STP is disabled by default. The table below lists the default STP settings when the STP is enabled.

Table 2-3 Default STP Values

Setting

Default Value

Range

Purpose

Bridge priority

32768

0-65535

A parameter used to identify the

 

 

 

root bridge in a spanning tree

 

 

 

(instance of STP). The bridge

 

 

 

with the lowest value has the

 

 

 

highest priority and is the root.

 

 

 

 

Bridge max age

20

6-40

The interval a bridge will wait for

 

 

 

a hello packet from the root

 

 

 

bridge before initiating a topology

 

 

 

change.

 

 

 

 

Bridge hello time

2

1-10

The interval of time between

 

 

 

each configuration BPDU sent by

 

 

 

the root bridge.

 

 

 

 

Bridge forward delay

15

4-30

The period of time a bridge will

 

 

 

wait (the listen and learn period)

 

 

 

before beginning to forward data

 

 

 

packets.

 

 

 

 

Ethernet port (ETH A)

100

0-65535

The cost of using the port to

path cost

 

 

reach the root bridge. When

 

 

 

selecting among multiple links to

 

 

 

the root bridge, STP chooses the

 

 

 

link with the lowest path cost and

 

 

 

blocks the other paths. Each port

 

 

 

type has its own default STP path

 

 

 

cost.

 

 

 

 

Ethernet port (ETH A)

128

0-255

The preference that STP gives to

priority

 

 

this port relative to the other ports

 

 

 

for forwarding traffic out of the

 

 

 

spanning tree.

 

 

 

A higher numerical value means

 

 

 

a lower priority; thus, the highest

 

 

 

priority is 8.

 

 

 

 

Ethernet port (ETH B)

100

0-65535

The cost of using the port to

path cost

 

 

reach the root bridge. When

 

 

 

selecting among multiple links to

 

 

 

the root bridge, STP chooses the

 

 

 

link with the lowest path cost and

 

 

 

blocks the other paths. Each port

 

 

 

type has its own default STP path

 

 

 

cost.

 

 

 

 

Ethernet port (ETH B)

128

0-255

The preference that STP gives to

priority

 

 

this port relative to the other ports

airClient™ Nexus User Guide

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SmartBridges sB3410 manual STP Settings Configuration