Configuring the underflow limit

The user can configure the underflow limit at the LSP level as well as in the auto-bandwidth template. The inheritance rules applied are the same as other auto-bandwidth parameters. The default value of underflow-limit is zero (0).

To configure the underflow-limit in an auto-bandwidth template, complete the following steps.

  1. Enable the device for configuration. 
    device>configure
  2. Enable the MPLS router. 
    device(config)# router mpls
  3. Enable the auto-bandwidth template and select template. In this example, template1 is selected. 
    device(config-router-mpls)# autobw-template template1
  4. Configure the underflow limit. In this example, the underflow limit is configured to 10. 
    device(config-router-mpls-autobw-template-template1)# underflow-limit 10

The following example combines the steps above to set the underflow-limit in an auto-bandwidth template. 

device>configure
device(config)# router mpls
device(config-router-mpls)# autobw-template template1
device(config-router-mpls-autobw-template-template1)# underflow-limit 10

Configuring the underflow-limit for an individual LSP.

To configure the underflow-limit for an individual LSP, complete the following steps.

  1. Enable the device for configuration. 
    device>configure
  2. Enable the MPLS router. 
    device(config)# router mpls
  3. Enable LSP configuration ans select target LSP. In this example, LSP1 is selected. 
    device(config-router-mpls)# lsp lsp1
  4. Enable auto-bandwidth. 
    device(config-mpls-lsp-lsp1)# autobw
  5. Enable and configure the underflow-limit. In this example, the underflow-limit is configured to 10. 
    device(config-router-mpls-lsp-lsp1-autobw)# underflow-limit 10

In the following example, the steps above are combined to configure the underflow-limit for individual LSP1 to 10 . 

device>configure
device(config)# router mpls
device(config-router-mpls)# lsp lsp1
device(config-mpls-lsp-lsp1)# autobw
device(config-router-mpls-lsp-lsp1-autobw)# underflow-limit 10

Clearing the underflow-limit configuration

To clear the underflow-limit configuration, use the same command as above with the no option. The underflow-limit is set back to the default value of zero (0).

  1. Enable the device for configuration. 
    device>configure
  2. Enable the MPLS router. 
    device(config)# router mpls
  3. Enable LSP configuration ans select target LSP. In this example, LSP1 is selected. 
    device(config-router-mpls)# lsp lsp1
  4. Enable auto-bandwidth. 
    device(config-mpls-lsp-lsp1)# autobw
  5. Enable and configure the underflow-limit. In this example, the underflow-limit is configured to 10. 
    device(config-router-mpls-lsp-lsp1-autobw)# no underflow-limit 10

In the following example, the steps above are combined to clear the underflow-limit configuration and set the configuration back to the default value of zero (0 ). 

device>configure
device(config)# router mpls
device(config-router-mpls)# lsp lsp1
device(config-mpls-lsp-lsp1)# autobw
device(config-router-mpls-lsp-lsp1-autobw)# no underflow-limit 10
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