Alteon Application Switch Operating System Application Guide
Bandwidth Management
780
Document
ID:
RDWR-ALOS-V2900_AG1302
15. Apply and verify the configuration.
Examine the resulting information. If any settings are incorrect, make any appropriate changes.
16. Save your new configuration changes.
17. Check the BWM information.
Check that all BWM contract parameters are set correctly. If necessary, make any appropriate
configuration changes and then check the information again.
Example
Configuring an IP User-Level Rate Limiting Contract
This example is for university that wants to restrict the amount of TCP traffic for individual students
and for the student body as a whole. Contract 1 is configured as follows:
•
Each student (IP address) is limited to 64 kbps.
•
All members of the student body are limited to maximum (hard limit) of 10 Mbps.
•
If the number of octets sent out exceeds the value of the entire contract (10 Mbps), excess
octets are dropped.
•
If the number of octets is below the value of the contract (10 Mbps), a session is created on
Alteon that records the student's IP address, the egress port number, and the contract number,
as well as the number of octets transferred for that second. The session updates the number of
octets being transferred every second, thus maintaining traffic within the configured user limit of
64 kbps.
1. Select the first bandwidth policy.
Each policy must have a number from 1 to 512.
2. Configure the BWM policy with a hard limit of 10 Mbps and a "user limit" of 64 kbps. Apply that
policy to Contract 1.
3. Configure a filter to match the source IP address range of the student body, and assign BWM
Contract 1 to that filter.
Contract 3 added to group 1.
>> BW Group 1# add 4
Contract 4 added to group 1.
(Add Contract 4 to Group 1)
>> Port 2# apply
>> Port 2# /cfg/bwm/cur
>> Bandwidth Management# save
>> Bandwidth Management# /info/bwm <contract number>
>> # /cfg/bwm/pol 1
>> Policy 1# hard 10m
>> Policy 1# userlim 64k
>> Policy 1# /cfg/bwm/cont 1
>> BW Contract 1# policy 1
(Select Contract 1)
(Apply policy 1 to this contract)
