Allied Telesis AT-S62 - Manual (Page 275)

AT-S62 Management Software Menus Interface User’s Guide
Section II: Advanced Operations 275
Assign the classifiers to flow groups and the flow groups to traffic
classes, with a different traffic class for each DiffServ code point
grouping within the DiffServ domain.
Give each traffic class the priority and/or bandwidth limiting controls
that are required for that type of packet within this part of the domain.
These QoS controls need not be the same for each switch.
3. As packets leave the DiffServ domain, classify them according to the
DSCP values.
Assign the classifiers to flow groups and the flow groups to traffic
classes, with a different traffic class for each DiffServ code point
grouping within the DiffServ domain.
Give each traffic class the priority and/or bandwidth limiting controls
required for transmission of that type of packet to its next destination,
in accordance with any Service Level Agreement (SLA) with the
providers of that destination.
If necessary, assign a different DSCP value to each traffic class, to be
written into the TOS field of the packet header, to match the DSCP or
TOS priority values of the destination network.