Cos Settings; Layer 3 Priority - Diffserv - Dell PowerConnect 3048 User Manual

CoS Settings

Port Priority allows the user to specify which ports have greater precedence
in situations where traffic may be buffered in the switch due to congestion.
The ports with a setting of "high" will transmit their packets before those
with a "normal" setting. The settings on this page only affect ingress packets
that are not already tagged for priority. To raise the priority of a given port,
switch the port's setting from "normal" to "high." The default and normal
setting for a port is "normal."
In the CoS Settings screen, you can specify the priority for each port on
your switch.
Layer 3 Priority — DiffServ
• DiffServ — You can change the default ToS priority by selecting
Normal Priority or High Priority for each class of services. This setting
leverages the IETF definition of the IPv4 Type of Service (ToS) octet
in the IP packet-header by using the Differentiated Services Code.
• Point (DSCP) field(6 bits) classifies packets into any of the 64 possible
classes.
Console Inter f ace
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