302 CHAPTER 8: USING QOS/ACL COMMANDS
Parameter
inbound: Performs traffic limitation to the packets received by the interface.
ip-group
acl-number
: Activates IP ACLs, including basic and advanced ACLs.
acl-number
: Sequence number of ACL, ranging from 2000 to 3999.
link-group
acl-number
: Activates Layer 2 ACLs. acl-number: Sequence number
of ACL, ranging from 4000 to 4999.
rule
rule
: Specifies the subitem of an active ACL, ranging from 0 to 65534; if not
specified, all subitems of the ACL will be activated. If only an IP ACL or a Layer 2
ACL is activated, this parameter can be omitted. If both IP and Layer 2 ACLs are
activated at the same time, the
rule
parameter cannot be omitted.
target-rate
: The set normal traffic, unit in Kbps, the granularity of traffic limit is
64 kbps, if the number input is in ( N*64 <the number input<(N+1)*64), in which
N is a natural number, the Switch automaticaly sets (N+1)*64 as the parameter
value.
target-rate
ranges from 64 to 1000000 inclusive.
exceed
action
: The action taken when the traffic exceeds the threshold. The
action
can be:
■
drop
: Drops the packets.
■
remark-dscp value
: Sets new DSCP value.
Description
Use the traffic-limit command, to activate the ACL and perform traffic
limitation. Use the
undo traffic-limit command to remove traffic limitation.
This command performs traffic limitation on the packets that match with a
specified ACL rule, and is only effective with a permit rule.
The granularity of traffic limit is 64 kbps.
You can only remark traffic with a DSCP value. The Switch 5500G-EI does not
permit CoS remarking with this command.
Example
Perform traffic limitation on packets that match the permit rule of ACL 2000. The
target traffic rate is 128 kbps.
<SW5500>system-view
System View: return to User View with Ctrl+Z
[SW5500]interface gigabitethernet 1/0/1
[SW5500-GigabitEthernet1/0/1] traffic-limit inbound ip-group 2000
128
traffic-priority Syntax
traffic-priority inbound { ip-group
acl-number
[ rule
rule
[
link-group
acl-number
rule
rule
] ] | link-group
acl-number
[ rule
rule
] } { { dscp
dscp-value
| ip-precedence {
pre-value
| from-cos }
} | cos {
pre-value
| from-ipprec } | local-precedence
pre-value
}*
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