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24-port NWay Ethernet Switch User’s Guide
38 Switch Management Concepts
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
priorit
Increases chance of
become Root Port
Table 5-1. User-selective STA parameter
Port Trunking
Port trunking is used to combine a number of ports
together to make a single high-bandwidth data pipeline.
The participating parts are called members of a trunk
group, with one port designated as the
master
of the group.
Since all members of the trunk group must be configured
to operate in the same manner, all settings changes made
to the master port are applied to all members of the trunk
group. Thus, when configuring the ports in a trunk group,
you only need to configure the master port.
The DES-3225G supports 3 trunk groups, which may
include from 2 to 8 switch ports each, except for the third