Globally-Configured Qos; Global Qos Configuration Procedure - HP 3500 Series Advanced Traffic Management Manual

Quality of Service: Managing Bandwidth More Effectively

Globally-Configured QoS

N o t e
5-16
Globally-Configured QoS
QoS Feature
UDP/TCP Priority
IP-Device Priority
IP Type-of-Service Priority
Layer-3 Protocol Priority
VLAN-ID Priority
Source-Port Priority
For more information on how to use global QoS classifiers, see "Global QoS
Restrictions" on page 5-19.

Global QoS Configuration Procedure

To globally configure a QoS policy on the switch, follow these steps:
1. Determine the global QoS policy you want to implement on the switch by
analyzing the types of traffic flowing through your network and identify-
ing one or more traffic types to prioritize. The order of precedence, from
a (highest) to h (lowest), in which global QoS classifiers are applied is as
follows:
a. TCP/UDP applications
b. Device priority—IP source or destination address (Note that destina-
tion has precedence over source. See Table 5-5.)
c. IP precedence bit set (leftmost three bits in the ToS/Traffic Class field
of IP packets)
d. IP differentiated services bit set (leftmost six bits in the ToS/Traffic
Class field of IP packets)
e. Layer-3 protocol
f. VLAN ID (requires at least one tagged VLAN on the network)
g. Source port
h. Incoming 802.1p priority (requires at least one tagged VLAN on the
network)
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