Chapter 7: Quality of Service (QoS)
Configuring Policers (Rate Metering)
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4.
In the
Ethertype 1 profile
field, select a profile from the policer profiles defined in the system. The
Ethertype 1
profile
drop-down list includes the ID and description of all defined profiles.
5.
In the
Ethertype 1 user value
field, enter the Ethertype value to which you want to apply this policer. The field
length is 4 nibbles (for example, 0x0806 - ARP).
6.
In the
Ethertype 1 admin
field, select
Enable
to enable policing on the logical interface for the specified
ethertype, or
Disable
to disable policing on the logical interface for the specified ethertype.
7.
Click
Apply
.
8.
To assign policers to additional Ethertypes, select
Ethertype type 2 Policer
and
Ethertype type 3 Policer
and
repeat the steps above.
Configuring the Ingress and Egress Byte Compensation
You can define the ingress and egress byte compensation value per logical interface. The policer attached to the
interface uses these values to compensate for Layer 1 non-effective traffic bytes.
To define the ingress byte compensation value for a logical interface:
1.
Select
Ethernet > Interfaces > Logical Interfaces
. The Logical Interfaces page opens (
2.
Select the interface you want to configure and click
Edit
. The Logical Interfaces - Edit page opens (
3.
In the
Ingress byte compensation
field, enter the ingress byte compensation value, in bytes. Permitted values
are 0 to 32 bytes. The default value is 20 bytes.
4.
In the
Egress byte compensation
field, enter the egress byte compensation value, in bytes. Permitted values
are 0 to 32 bytes. The default value is 0 bytes. Only even values are permitted.
5.
Click
Apply
, then
Close
.