FibeAir IP-20C/S/E
User Guide
Ceragon Proprietary and Confidential
Page 208 of 597
2 Select the row you want to modify and click Edit. The MPLS Classification -
Edit page opens.
Figure 149: MPLS Classification - Edit Page
3 Modify the parameters you want to change:
MPLS EXP – Read-only. The MPLS (experimental) bit to be mapped.
CoS – The CoS assigned to frames with the designated MPLS EXP value.
Color – The Color assigned to frames with the designated MPLS EXP
value.
4 Click Apply, then Close.
7.3
Configuring Policers (Rate Metering)
This section includes:
Policer (Rate Metering) Overview
Assigning Policers to Interfaces
Configuring the Ingress and Egress Byte Compensation
7.3.1
Policer (Rate Metering) Overview
The IP-20 switching fabric supports hierarchical policing on the logical
interface level. You can define up to 250 rate meter (policer) profiles.
Note:
Policing on the service point level, and the service point and
CoS level, is planned for future release.
IP-20's policer mechanism is based on a dual leaky bucket mechanism
(TrTCM). The policers can change a frame’s color and CoS settings based on
CIR/EIR + CBS/EBS, which makes the policer mechanism a key tool for
implementing bandwidth profiles and enabling operators to meet strict SLA
requirements.
The output of the policers is a suggested color for the inspected frame. Based
on this color, the queue management mechanism decides whether to drop the
frame or to pass it to the queue.