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Actiontec Broadband Router User Manual
Furthermore, the Router cannot control the behavior of the
, which may not have
ISP
proper
o
handling. Unfortunately, this is a common situation. Let's look at a scenar-
Q
S
io of downloading a large file and surfing the Internet at the same time. Downloading
the file is distinguished by small requests, followed by very large responses. This may
result in blocking
traffic at the
. A solution for such a situation is limiting the
HTML
ISP
bandwidth of low-priority
connections (such as the file download).
TCP
Differentiated Services Code Point Settings
In order to understand what
is, one must first be familiarized with the
DSCP
Differentiated Services model.
Differentiated Services (Diffserv) is a Class of Service (Co
) model that enhances
S
best-effort Internet services by differentiating traffic by users, service requirements,
and other criteria. Packets are specifically marked, allowing network nodes to
provide different levels of service, as appropriate for voice calls, video playback, or
other delay-sensitive applications, via priority queuing or bandwidth allocation, or
by choosing dedicated routes for specific traffic flows.
Diffserv defines a field in
packet headers referred to as the Differentiated Services
IP
Codepoint (
). Hosts or routers passing traffic to a Diffserv-enabled network
DSCP
will typically mark each transmitted packet with an appropriate
. The
DSCP
DSCP
markings are used by Diffserv network routers to appropriately classify packets and
to apply particular queue handling or scheduling behavior
The Router provides a table of predefined
values, which are mapped to
DSCP
802.1p priority marking method. Any of the existing
setting can be edited or
DSCP
deleted, and new entries can be added.
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