Marking Packets With A Tos Value - HP ProCurve Secure Router 7203 dl Advanced Management And Configuration Manual

N o t e
When specifying the QoS map, you include only the name, not the sequence
number. This allows the interface to grant QoS to many different kinds of
traffic. You can only configure one QoS map for an interface, but this map can
include many entries, each creating a different low-latency queue. Other
entries can also perform other types of QoS, such as marking packets or
placing them in a class for CBWFQ.
If you attempt to assign a second map with a different name to an interface,
it will overwrite the first.

Marking Packets with a ToS value

The ProCurve Secure Router can mark the ToS field of packets it forwards
with an IP precedence or DiffServ value. These ToS values grant packets
different types of service according to configurations in the connecting net-
work. You should negotiate with your service provider or other connecting
network which packets will be marked with which values and what level of
service these values entail.
You can also mark packets with IP precedence values for implementing WFQ
on the router. (See "Configuring WFQ" on page 7-14.)
However, you cannot assign a packet a ToS value in one map entry and then
match that ToS value to a low-latency queue in another entry. The router stops
processing the QoS map as soon as it finds a match for the packet.
You can, however, configure a QoS map entry to both mark packets and place
them in a low-latency queue or CBWFQ class. Simply enter both the set
command and the priority or bandwidth command.
You can configure the router to mark:
traffic already marked with a QoS value
traffic with a specific source and/or destination IP address
traffic destined to a UDP protocol port
bridged traffic
Setting Up Quality of Service
Marking Packets with a ToS value
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