User`s manual
1 Product Overview
With manual VLAN configuration, both the initial setup and all subsequent moves and changes are
controlled by the network administrator, enabling a high degree of control. Also moving users
manually with VLANs may actually be easier than moving users across router subnets.
Table Maintenance via Signaling
When an end-station broadcasts its first frame, the switch resolves the end-station’s attached port
with its VLAN membership in cached address tables. As VLAN membership changes, these address
tables can be manually updated by a system administrator at a management console.
What is Priority Queuing?
Priority Queuing is a method of ensuring that high priority traffic gets delivered efficiently, even
when during bursts of high traffic load. In this way, traffic such as voice data and video (services
which are streaming) are prioritized, helping steady picture and sound quality.
Ether-FSH2400NS allows 2-level (High/Normal) Priority setting by any of the three types of
priority frames operations: TCP/IP TOS or per Port priority frame operation.
The QoS setting for priority per port means that all packets received by the port will be priority
frames; Ether-FSH2400NS can also judge the priority of frames by checking the specific bits of r
TCP/IP TOS/DS included in the frame format. Ether-FSH2400NS will judge the priority of frames
by checking the specific bits recorded in the type field of packet format to ensure the VLAN or
TCP/IP TOS/DS status of packets, then set the threshold of VLAN or TCP/IP TOS/DS to declare the
priority of packet.
If you have any plans to implement network telephony or any sort of video conferencing,
streaming video/audio or any real-time applications on your network you will need
Ether-FSH2400NS for priority queuing. Its benefit is to dramatically improve the quality
of priority services on the network. If priority queuing is not implemented then the quality
of these services will depend entirely on the loads on your network. If network traffic is
high, the service will not work properly.
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Ether-FSH2400NS Fast Ethernet Switch User’s Manual V1.0