Filter
Top Products
10/100 Fast Ethernet Switch User’s Guide
Switch Management
25
5.
Calculation and configuration of Switched Local Area Network
topology.
Aging Time
The Aging Time is a parameter that affects the auto-learn process of the
Switch in terms of the network configuration. Dynamic Entries, which make
up the auto-learned-node address, are aged out of the address table according
to the Aging Time that you set.
The Aging Time can be from 10 seconds to 1,000,000 seconds. A very long
Aging Time can result with the out-of-date Dynamic Entries that may cause
incorrect packet filtering/forwarding decisions.
In the opposite case, if the Aging Time is too short, many entries may be
aged out soon, resulting in a high percentage of received packets whose
source addresses cannot be found in the address table.
Spanning Tree Algorithm
The Spanning Tree Algorithm (STA) in the Switch allows you to create
alternative paths (with multiple switches or other types of bridges) in your
network. These backup paths are idle until the Switch determines that a
problem has developed in the primary paths. When a primary path is lost,
the Switch providing the alternative path will automatically go into service
with no operator intervention. This automatic network reconfiguration
provides maximum uptime to network users. The concept of the Spanning
Tree Algorithm is a complicated and complex subject and must be fully
researched and understood. Please read the following before making any
changes .
♦
Network loop detection and prevention.
With STA, there will be only one path between any two LANs. If
there is more than one path, forwarded packets will loop indefinitely.
STA detects any looped path and selects the path with the lowest path