HP 8000M - Manual (Page 217)

6-141
Configuring the Switch
Class of Service (CoS): Managing Bandwidth More Effectively
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The CoS Protocol Priority Screen
CoS uses protocol criteria to determine traffic priority unless the same traffic
has other CoS criteria (configured in other CoS screens) that has a higher
precedence. (For precedence information, see Table 6-7. Priority Criteria and
Precedence on page 6-134.)
To display the Protocol Priority screen, select Protocol Priority in the CoS Menu
screen (page 6-139).
Figure 6-89. Examples of CoS Protocol Priority Configurations
Where a packet in a listed protocol is outbound in a tagged VLAN environment,
then it carries with it an 802.1p priority. If a 0-7 priority is configured, the
packet carries the equivalent 802.1p priority. If
No override is configured, and
the packet entered the switch through a tagged VLAN, then the packet carries
the 802.1p priority it carried when entering the switch. If
No override is config-
ured and the packet did not enter the switch through a tagged VLAN, then the
packet carries an 802.1p priority of 0 (normal priority) when it leaves the
switch.
IP packets will be placed in
the “normal” outbound port
IPX packets will be
placed in the “high”
outbound port queue.