3Com Switch 8807, Command Reference Manual

Page: 267 / 1099

QoS Commands 265
■
When you configure traffic policing for a port group, all the ports in the port
group occupy the same bandwidth, that is, the configured traffic parameter is
shared by all the ports.
cir : Committed information rate in Kbps.
cbs : Committed burst size in bytes.
ebs : Excess burst size in bytes.
pir : Peak information rate in Kbps.
conform: Optional parameter used to set the action to be taken when the traffic
does not exceed the set value.
remark-cos : Sets new 802.1p priority value for the packet according to its
conform level and local precedence.
remark-drop-priority : Sets drop precedence value for the packet according to its
conform level.
remark-policed-service : Sets new service parameters for the packet according to
its conform level and DSCP value.
exceed : Optional parameter to set action for the case when traffic threshold is
exceeded.
■
forward: Forwards the packet.
■
drop: Drops the packet.
traffic-index index : Traffic index.
slot slotid : Slot number of a service processor card.
Description
Use the traffic-limit command to activate an ACL and set traffic limitation to take
different actions for the packets within and beyond the preset traffic threshold.
Use the undo traffic-limit command to remove traffic limitation setting.
This command is only applicable to the packets which match the permitted rules in
the ACL.
It is required that CIR is less than or equal to PIR and CBS is less than or equal to
EBS. You are recommended to configure CBS and EBS to numbers that are 100 to
150 times of CIR.
For the same traffic, you cannot select both the remark-cos and
remark-policed-service keywords, or both the remark-drop-priority and
remark-policed-service keywords.
Before selecting the remark-policed-service keyword, you must make sure you
have configured the DSCP + Conform-Level -> Service parameter mapping table.
Before selecting the
remark-cos keyword, you must ensure you have configured