Quality Of Service (Qos); Bootp And Dynamic Host Configuration Protocol (Dhcp) - Allied Telesis AT-8016F/MT Installation Manual

AT-8000 Series Fast Ethernet Switches Installation Guide
Quality of
The AT-8000 Series Fast Ethernet Switches support the IEEE 802.1p
standard and Quality of Service. QoS can be important in network
Service (QOS)
environments where there are time-critical applications, such as voice
transmission or video conferencing, that can be adversely affected by
packet transfer delays.
Prior to QoS, network traffic was handled in a best-effort manner. File
transfer delays did occur, but were mostly transparent to network users.
But with the introduction of time-critical applications, packet transfer
delays can impact performance. For example, delays in packets carrying
voice transmission can result in poor audio quality.
The QoS feature was designed to address this problem. With it, Ethernet
frames can be assigned different priorities. The switch uses the priorities
when determining which frames to forward first. Frames from end-
nodes running time-critical applications can be given a high priority, and
so are forwarded by the switch ahead of less time-critical frames.
BOOTP and
These application protocols were developed to simplify network
management. They are used to automatically assign IP configuration
Dynamic Host
information to the devices on your network, such as an IP address,
Configuration
subnet mask, and, in some instances, a default gateway address.
Protocol
The Fast Ethernet switches support these protocols and can obtain their
(DHCP)
IP configuration information from a BOOTP or DHCP server on your
network. If you activate this feature, the switch will seek its IP address
and other IP configuration information from a BOOTP or DHCP server on
your network. Naturally, for this to work there must be a BOOTP or DHCP
server residing on your network and you must configure the service by
entering in the switch's MAC address.
Most BOOTP and DHCP services allow you to specify how the IP address
is to be assigned to the switch. Choices are static and dynamic. If you
choose static, the server will always assign the same IP address to the
switch when the switch is reset or powered on. If you choose dynamic,
the server will assign any unused IP address that it has not already
assigned to another device.
Note
The BOOTP and DHCP option is disabled by default on the switch.
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