Bandwidth Management; Introduction To Bandwidth Management - SonicWALL TELE3 SP Administrator's Manual

Proxy Management Workstation Ethernet Address on WAN
If you are managing the Ethernet connection from the LAN side of your network, this check box
can be selected. The SonicWALL appliance takes the Ethernet address of the computer
managing the SonicWALL appliance and proxies that address onto the WAN port of the
SonicWALL. If you are not managing the SonicWALL appliance from the LAN side, the firmware
looks for a random computer on the LAN creating a lengthy search process.

Bandwidth Management

Bandwidth is the capacity of a communication channel (cable, DSL, T1 lines, etc.) to carry
signals. A larger bandwidth can transfer more data over a communication channel in a given
time. Sometimes referred to as "throughput", and in digital communications, it is usually
measured in bits per second (bps) or a multiple of bps such as Kbps, Mbps, or Gbps.
Note: The functionality of this feature can be affected if a WAN Failover to the modem occurs
on the SP.

Introduction to Bandwidth Management

Bandwidth management is a means of allocating bandwidth resources to critical applications on
a network. Without bandwidth management, an application or a user can take control of all
available bandwidth and prevent other applications or users from using the network. Because it
is impossible to differentiate between types of network traffic, it is also impossible to control
which users or applications have priority on the network.
Applications can also require a specific quantity and quality of service which cannot be
predicted in terms of available bandwidth. This can make some applications run poorly if
bandwidth is not properly allocated to the application when necessary.
Bandwidth management works by sorting outbound network traffic into classes by application
and service type. Traffic is then scheduled according to minimum and maximum bandwidth
configured for each traffic type.
Why Use Bandwidth Management?
Corporate networks using intranets for information sharing and Web navigation have an
increased demand for bandwidth, but simply adding on more connections or larger connections
(T1 lines or larger) doesn't address the bandwidth issue because network availability is not
guaranteed.
Nearly all network links are shared by more than one user or application which means available
bandwidth is shared between all users and all applications. Using bandwidth management to
allocate bandwidth to applications or users during peak times can prevent traffic congestion on
the network. Temporary network congestion can be improved by using bandwidth
management.
SonicWALL Bandwidth Management
Bandwidth Management is controlled by the SonicWALL Internet Security Appliance on
outbound traffic only. It allows network administrators to guarantee minimum bandwidth and
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