Configuration Example 7 - Interface Shaping - Nortel 5530 Engineering Manual

Filters and QoS Configuration for ERS 5500
Technical Configuration Guide
12.8 Configuration Example 7 – Interface Shaping
In this configuration example, we wish to add port shaping to port 8 and set the shaped rate to 40
Mbps. Also, we wish to use the maximum bucket size (burst duration) available of 512M.
To add port shaping to port 8, please enter the following commands:
12.8.1.1 Enable Shaping on Port 8
As mentioned in section 5.3, if you do not specify maximum burst duration, the maximum bucket
size will automatically be configured. For a 10/100 Mbps or 1 GigE port, the value will be 524,288
bytes. Hence, it does not matter what value you enter as the max-burst-rate as long as it is
greater than the shaped-rate.
ERS5500 Step 1 – Configure port 8 with a committed shape rate of 40 Mbps and a burst
rate of 50 Mbps
ERS5500-24T(config)#interface fastEthernet all
ERS5500-24T(config-if)#qos if-shaper port 8 shape-rate 40000 max-burst-rate
50000
ERS5500-24T(config-if)#exit
12.8.2 Verify Operations
12.8.2.1 Verify Shape Rate Configuration
Step 1 –View the shape rate configured on port 8
show qos if-shaper port 8
ERS5500-24T#
Result:
Unit Port IfIndex
____ ____ _______ ________________ ________ ________
1 8 8
___________________________________________________________________________________________________________________________
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v2.0
Figure 9: Port Shaping Example
Name Rate Burst
Size
(Kbps) (Bytes)
40000 524288
External Distribution
NN48500-559
69