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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.

Setting a Two-Rate Rate-Limit-Profile

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