Radware Alteon, Application Manual

Page: 778 / 842

Alteon Application Switch Operating System Application Guide
Bandwidth Management
778
Document ID: RDWR-ALOS-V2900_AG1302
Examine the resulting information. If any settings are incorrect, make any appropriate changes.
12. On Alteon, save your new configuration changes.
13. On Alteon, 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 Grouped Contracts for Bandwidth Sharing
In this example, BWM is configured to allow sharing of BWM resources by configuring a group
contract. While the group hard limit is essentially the aggregate of the hard limits defined for each
contract in the group, any unused bandwidth may be shared amongst all member contracts.
For example, a group level contract is defined with four individual contracts that have committed
information rates (CIR) of 10, 20, 30, and 40 Mbps each. Together, the total CIR of the member
contracts is 100 Mbps. Based on how much traffic is actually being sent by all the contracts in the
group, the hard limits of each contract are readjusted every few seconds, in proportion to each
contract's share in the group. In effect, the contract with only 10 Mbps may be allowed at times to
share any unused resources in the group and burst up to a higher hard limit. If that contract is
removed from the group, the contract reverts to its individual hard limits, and any traffic above its
configured hard limit is dropped as usual. For a more detailed explanation on how hard limits for
contracts behave in a contract group, see
Table 66 - Bandwidth Reallocation in Grouped Contracts,
page 765 .
Note: While traffic shaping contracts may be added to a group level contract, their soft and
reserved limits are not readjusted.
1. Ensure BWM is enabled on Alteon.
2. Configure Alteon as you normally would for SLB. Configuration includes the following tasks:
— Assign an IP address to each of the real servers in the server pool.
— Define an IP interface on Alteon.
— Define each real server.
— Define a real server group.
— Define a virtual server.
— Define the port configuration.
3. Select the first bandwidth policy and set the hard, soft, and reserved rate limits for the
bandwidth policy, in Mbps.
>> Port 2# apply
>> Port 2# /cfg/bwm/cur
>> Bandwidth Management# save
>> Bandwidth Management# /info/bwm <contract number>
>> /cfg/bwm/on