Traffic-Priority - Huawei Quidway S8500 Series Command Manual

Command Manual – QoS/ACL
Quidway S8500 Series Routing Switches
drop: Drops the packet.
Description
Use the traffic-limit command to activate ACL flow identification to perform flow limit
for the matching data flow in the VLAN and perform different actions on the packets
withinin the flow limit and those beyond the flow limit.
Use the undo traffic-limit command to undo the flow limit.
Use the command to perform flow limit on the packets matching the specified ACL (only
available to the rules whose action is permit in the ACL).
When the parameter is set, it is required that cir<=pir,cbs<=ebs. It is recommended to
set the values of cbs and ebs 100-150 times of the value of cir.
The setting of tc-index is subject to the following limitations:
remark-cos and remark-policed-service cannot be set at the same time for the
same data flow, neither can remark-drop-priority and remark-policed-service.
You need to configure the "DSCP+Conform-level
table before configuring the remark-policed-service action; you need to
configure the "Local-precedence + Conform-level
table before configuring the remark-cos action. Refer to the qos control-level,
dscp, local-precedence command for the descriptions of the two mapping tables.
Example
# Perform flow limit on packets received on the ports in VLAN 2 if they match the permit
rule in ACL3000. Set the CIR to 2000 kbps, the CBS to 2000 bytes and the EBS to 2500
bytes. Drop packets when this threshold is exceeded.
<Quidway> system-view
System View: return to User View with Ctrl+Z.
[Quidway] vlan 2
[Quidway-vlan2] traffic-limit inbound ip-group 3000 200 2000 2500 conform
remark-policed-service exceed drop

4.1.4 traffic-priority

Syntax
traffic-priority inbound ip-group { acl-number | acl-name } [ rule rule [ system-index
index ] ] { auto | remark-policed-service { trust-dscp | dscp dscp-value | untrusted
dscp dscp-value cos cos-value local-precedence local-precedence drop-priority
drop-level } }
undo traffic-priority inbound ip-group { acl-number | acl-name } [ rule rule ]
View
VLAN view
Chapter 4 VLAN-ACL Configuration Commands
Huawei Technologies Proprietary
4-5
Service parameter" mapping
802.1p priority" mapping