D-Link DES-3624 - Switch - Stackable User manual - Packet Forwarding
Stackable NWay Ethernet Switch User’s Guide
are the number of ports and types of ports. Examples of read-
only variables are the statistics counters such as the number
of errors that have occurred, or how many kilobytes of data
have been received and forwarded through a port.
Read-write MIBs are variables usually related to user-
customized configurations. Examples of these are the Switch’s
IP Address, Spanning Tree Algorithm parameters, and port
status.
If you use a third-party vendors’ SNMP software to manage the
Switch, a diskette listing the Switch’s propriety enterprise MIBs
can be obtained by request. If your software provides functions
to browse or modify MIBs, you can also get the MIB values and
change them (if the MIBs’ attributes permit the write
operation). This process however can be quite involved, since
you must know the MIB OIDs and retrieve them one by one.
Packet Forwarding
The Switch learns the network configuration and uses this
information to forward packets. This reduces the traffic
congestion on the network, because packets, instead of being
transmitted to all segments, are transmitted to the destination
only. Example: if Port 1 receives a packet destined for a
station on Port 2, the Switch transmits that packet through
Port 2 only, and transmits nothing through the other ports.
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
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Switch Management Concepts