Technical Documentation

Configuring CoS Schedulers (NSM Procedure)

Using schedulers, you can assign attributes to queues and thereby provide congestion control for a particular class of traffic. These attributes include the amount of interface bandwidth, memory buffer size, transmit rate, and schedule priority.

To configure CoS schedulers:

  1. In the navigation tree, select Device Manager > Devices.
  2. Click the Device Tree tab, and then double-click the device for which you want to configure CoS schedulers.
  3. Click the Configuration tab. In the configuration tree expand Class of Service.
  4. Select Schedulers.
  5. Add or modify the settings as specified in Table 1.
  6. Click one:
    • OK—Saves the changes.
    • Cancel—Cancels the modifications.

Note: After you make changes to a device configuration, you must push that updated device configuration to the physical security device for those changes to take effect. You can update multiple devices at one time. See the Network and Security Manager Administration Guide for more information.

Table 1: Configuring Schedulers

Task

Action

Specify the buffer size.
  1. Click the Add New icon.
  2. Expand Buffer Size.
  3. Select Percent.
  4. Under Percent, select the appropriate option:
    • To specify no buffer size, select None.
    • To specify buffer size as a percentage of the total buffer, select percent and type an integer from 1 through 100.
    • To specify buffer size as the remaining available buffer, select remainder.
  5. Click OK.

Configure drop profile map.
  1. Click the Add New icon.
  2. Select drop-profile-map.
  3. In the Loss Priority box, select the required loss priority—for example, high.
  4. In the Protocol box, select the type of protocol—for example, any.
  5. In the Drop Profile box, select the previously configured drop profile.
  6. Click OK.

Specify the transmit rate.
  1. Click the Add New icon.
  2. Expand Transmit Rate.
  3. Select Rate.
  4. Under Rate, select the appropriate option:
    • To not specify transmit rate, select None.
    • To enforce a specific transmission rate, select rate and type the transmission rate that you want to enforce.
    • To specify a percentage of transmission capacity, select percent and type an integer from 1 through 100.
    • To specify the remaining transmission capacity, select remainder.
  5. Click OK.

Updated: 2009-04-30