Marking Packet Priority - 3Com 4500 PWR 26-Port Configuration Manual

C onfiguration example
Set the IP precedence of ICMP packets to 3.
Display the configuration.
Configuration procedure:
<Sysname> system-view
[Sysname] protocol-priority protocol-type icmp ip-precedence 3
[Sysname] display protoc
Protocol: icmp
IP-Precedence: flash(3)

Marking Packet Priority

R efer to section
Marking packet priority can be implemented in the following two ways:
Through traffic policing
W hen configuring traffic polic
packets exceeding the traffic spec
Through the traffic-priority command
You can use the traffic priority command to mark the
precedence, and local precedence of the packets.
Configuration prerequisites
The following items are defined or
The ACL rules used for tra
manual for related informa
The type and value of the pre
been determined.
The port or VLAN on which the configuration is to be performed has been determined.
Configuration procedure
Follow these steps to configure priority marking on a port:
To do...
Enter system view
Enter Ethernet port view
Mark the priorities for packets
matching specific ACL rules
Follow these steps to configure priority marking on a VLAN:
ol-priority
Priority Ma rking f or information about mark
ing , you can define the action of marking t
ification. Refer to section
determined before the configuration:
ffic classification have been specified.
tio n.
cedence to be marked for the
system-view
interface interface-type
interface-number
t raffic-priority { inbound | outbound }
acl-ru le { { dscp dscp-value |
ip-pre
| cos { pre-value | from-ipprec } |
local-precedence pre-value }*
ing packet priority
Config
IP precedence, 802.1p priority, DSCP
Use the command...
cedence { pre-value | from-cos } }
45-16
.
h e DSCP precedence fo
uring Traffi c Policing .
Refe r to the ACL module of
packets m atching the ACL ru
Remarks
—
—
Required
Refer to the command
manu al for information
abou t the acl-rule
argument.
r
this
les have