D-Link DES-5200 User Manual page 128

Fast Ethernet Switching System User's Guide
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-5200 may or may not be
the root bridge. The DES-5200 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 13: User Selective STA Parameters
STA Parameters
Enable/Disable
Bridge Priority
Hello Time
Max Age Time
Forward Delay
Time
Port Level STA parameters
Enable/ Disable
Port Priority
Web Management
Settings
Enable/Disable
Lower the #,
higher the priority
1 – 10 seconds
6 – 40 seconds
4 – 30 seconds
Enable/ disable
Lower the #,
higher the priority
Effects
Participate in or
remove from STA
Increases chance
of becoming the
Root Bridge
No effect, if not
Root Bridge
Compete for Root
Bridge, if BPDU is
not received
High # delays the
change in state
Enable or disable
LAN segment
Increases chance
of becoming the
Root Port
Comment
Enable in a
SNMP network
Avoid, if the
switch is used in
workgroup level
of a large network
Never set greater
than Max Age
Time
Avoid low
number for
unnecessary reset
of Root Bridge
2 x (Forward
Delay minus 1
second) > Max
Age, 2 x (Hello
Time plus 1
second) < Max
Age
Disable a port for
security or
problem isolation
No comment
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