Modular Ethernet Switch User’s Guide
Switch Management Concepts
25
Figure 5-1. Before Applying the STA Rules
Figure 5-2. After Applying the STA Rules
STA parameters
Settings
Effects
Comment
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 sec.
No effect, if not
Root Bridge
Never set greater than
Max. Age Time
Max. Age Time
6 - 40 sec.
Compete for Root
Bridge, if BPDU is
not received
Avoid low number for
unnecessary reset of
Root Bridge
Forward Delay
4 - 30 sec.
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
this LAN segment
Disable a port for
security or problem
isolation
Port Priority
lower the #,
higher the
priority
Increases chance of
become Root Port
Table 5-1. User-selective STA parameters
