Priority Mapping Configuration Tasks - HP FlexFabric 5700 series Configuration Manual

Figure 4 Priority mapping process for an Ethernet packet
Use port priority as
802.1q priority for
priority mapping
Look up dot1p-dp
and dot1p-lp
mapping tables
Mark the packet
with local
precedence or drop
priority
For information about priority marking, see

Priority mapping configuration tasks

You can modify priority mappings by modifying priority mapping tables, priority trust mode on a port,
and port priority.
To configure priority mapping, perform the following tasks:
Tasks at a glance
(Optional.)
802.1p in packets
No
Is the packet
802.1q tagged?
Yes
Look up dot1p-dp
and dot1p-lp
mapping tables
Mark the packet
with local
precedence or drop
priority
Configuring a priority map
Receive a packet
on a port
Should the
packet be marked with Yes
local precedence or drop
priority?
No
Which priority is
trusted on the port?
DSCP in packets
Look up dscp-dp,
dscp-dot1p, and
dscp-dscp mapping
tables
Mark the packet
with 802.1p priority,
drop precedence,
and new DSCP
precedence
Look up dot1p-lp
mapping table
Mark the packet
with local
precedence
Schedule the packet based
on its local precedence or
drop priority
"Configuring priority
29
Mark it with local
precedence or drop
Port priority
Use port priority as
802.1p priority for
priority mapping
Look up dot1p-dp
and dot1p-lp
mapping tables
Mark the packet
with local
precedence or drop
priority
marking."
priority