3com 2816 Guida Utente
Viewing Support Information
47
The traffic prioritization feature supported by the Switch
is compatible with the relevant sections of the IEEE
802.1D standard (incorporating IEEE 802.1p).
is compatible with the relevant sections of the IEEE
802.1D standard (incorporating IEEE 802.1p).
This Switch uses the Weighted Round Robin (WRR)
algorithm to determine the frequency at which it
services each priority queue. The Switch allows you to
choose between using IP Precedence or DSCP
(Differentiated Services Code Point) priority. When either
of these services is enabled, the priorities are mapped to
a Class of Service value by the Switch, and the traffic
then sent to the corresponding output queue.
algorithm to determine the frequency at which it
services each priority queue. The Switch allows you to
choose between using IP Precedence or DSCP
(Differentiated Services Code Point) priority. When either
of these services is enabled, the priorities are mapped to
a Class of Service value by the Switch, and the traffic
then sent to the corresponding output queue.
Figure 29 802.11p Prioritization
Viewing Support Information
Selecting Support on the menu displays the support
links page, which contains a list of Internet links that
provide information and support concerning the Switch.
links page, which contains a list of Internet links that
provide information and support concerning the Switch.
2
Standard (spare)
3
Excellent Effort (business critical)
4
Controlled Load (streaming multimedia)
5
Video (Interactive media), less than 100 milli-
seconds latency and jitter.
seconds latency and jitter.
6
Voice (Interactive voice), less than 10 millisec-
onds latency and jitter.
onds latency and jitter.
7
Network Control Reserved traffic