JUNOSe 9.1.x Policy Management Configuration Guide > Creating Rate-Limit Profiles > Setting a Two-Rate Rate-Limit-Profile

Setting a Two-Rate Rate-Limit-Profile

You can use the rate-limit-profile tw0-rate command to create a rate-limit profile and enter Rate Limit Profile Configuration mode, from which you can configure attributes for the rate-limit profile. See Table 7.

NOTE: The JUNOSe software includes the layer 2 headers in the calculations it uses to enforce the rates that you specify in rate-limit profiles

Use one of the ip, ipv6, l2tp, or mpls keywords in front of the command to specify the type of rate-limit profile you want to create or modify. If you do not include one of the keywords, the router creates an IP rate-limit profile by default.

For hierarchical rate limits, do not specify the interface type, but add the hierarchical keyword at the end. In Parent Group Configuration Mode, associates a rate limit for a parent group. The color-aware keyword is only supported on hierarchical rate limits.

If you do not include a one-rate or two-rate keyword, the default is a two-rate rate-limit profile. If you enter a rate-limit-profile command and then type exit, the router creates a rate-limit profile with the default values listed in Table 10:

 Table 10:  Two-Rate Rate-Limit-Profile Defaults

 Policy Attribute
 Default Value

 type

 two-rate


 committed-rate

 0


 committed-burst

 8192


 peak-rate

 0


 peak-burst

 8192


 committed-action

 transmit


 conformed-action

 transmit


 exceeded-action

 drop


 mask (IP and IPv6 rate-limit profiles) 

 255


 exp-mask (MPLS rate-limit profiles) 

 7



 

During a software upgrade, certain values are set as follows:

• Committed burst size—Set to 8192 if it was less than that value before the upgrade
• Peak burst size—Set to 8192 if it was less than that value before the upgrade
• Peak rate—Set to 0 if it was nonzero but less than the committed rate before the upgrade
  

  NOTE: We recommend that you do not configure a committed or peak burst size smaller than the MTU of the interface. Doing so causes large packets to be dropped even when they are transmitted at a very low rate.

  
  
• Issue the ip rate-limit-profile command in Global Configuration mode:

host1(config)#ip rate-limit-profile hardlimit9Mb two-rate

 NOTE: Commands that you issue in Rate Limit Profile Configuration mode do not take effect until you exit from that mode.



 

Related Topics

• exp-mask command
• rate-limit-profile command