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Root bridge, Root port – D-Link DES-5016 User Manual

Page 71

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Fast Ethernet Switching System User’s Guide

Managing the DES-5016

63

The switch with the lowest Bridge Identifier is the Root Bridge. It is best to make the
Root Bridge the best switch on the network to ensure the best network performance and
reliability.

Root Bridge

Specifies the MAC address of the Root Bridge. The DES-5016 may or may not be the
root bridge. The DES-5016 is the default root bridge.

Root Port

Specifies the preferred path to the Root Bridge. Only one path per bridge can exist. The
default setting is none.

Table 8: User Selective STA Parameters

STA parameters

Settings

Effects

Comment

Enable/Disable

Enable/
Disable

Participate in or
remove from
STA

Enable in a
SNMP network.

Bridge Priority

Lower the
#, higher
the
priority

Increases
chance of
becoming the
Root Bridge

Avoid, if the
switch is used in
workgroup level of
a large network

Hello Time

1 – 10
seconds

No effect, if not
Root Bridge

Never set greater
than Max Age
Time

Max Age Time

6 – 40
seconds

Compete for
Root Bridge, if
BPDU is not
received

Avoid low number
for unnecessary
reset of Root
Bridge

Forward Delay

4 – 30
seconds

High # delays
the change in
state

Max Age < 2 x
(Forward Delay -
1)
Max Age > 2 x
Hello Time + 1)

Port Level STA parameters
Enable/ Disable

Enable/
disable

Enable or
disable LAN
segment

Disable a port for
security or
problem isolation

Port Priority

Lower the
#, higher
the
priority

Increases
chance of
becoming the
Root Port