Creating A One-Rate Rate-Limit Profile; Configuring A Tcp-Friendly One-Rate Rate-Limit Profile - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - POLICY MANAGEMENT CONFIGURATION GUIDE 2010-10-04 Configuration Manual

Creating a One-Rate Rate-Limit Profile

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Configuring a TCP-Friendly One-Rate Rate-Limit Profile

Copyright © 2010, Juniper Networks, Inc.
Mask value—Mask to be applied with mark values for the ToS byte; applicable only to
IP and IPv6 rate-limit profiles; not supported on hierarchical rate limits
EXP mask value—Mask to be applied with mark-exp values; applicable only to MPLS
rate-limit profiles; not supported on hierarchical rate limits
To create or modify a one-rate rate-limit profile, use the following commands with the
one-rate keyword:
ip rate-limit-profile command
ipv6 rate-limit-profile command
l2tp rate-limit-profile command
mpls rate-limit-profile command
The following example creates a rate-limit profile named tcpFriendly8Mb. This rate-limit
profile, when included as part of a rule in a policy list, sets a TCP-friendly rate for a
specified flow:
host1(config)#ip rate-limit-profile tcpFriendly8Mb one-rate
host1(config-rate-limit-profile)#committed-rate 8000000
host1(config-rate-limit-profile)#committed-burst 1500000
host1(config-rate-limit-profile)#excess-burst 3000000
host1(config-rate-limit-profile)#committed-action transmit
host1(config-rate-limit-profile)#conformed-action transmit
host1(config-rate-limit-profile)#exceeded-action drop
host1(config-rate-limit-profile)#mask-val 255
To configure a single-rate hard limit, set the committed rate and burst rate to the desired
values, the committed action to transmit, the conformed action to drop, and the exceeded
action to drop. The peak rate must be set to zero.
NOTE: You can also achieve the characteristics of the single-rate hard limit
by configuring a one-rate rate-limit profile with the extended burst rate set
to zero.
Rate Limits for Interfaces Overview on page 58
Monitoring Policy Management Overview on page 173
You can configure a committed rate, committed burst, and excess burst for the token
bucket. For example, to configure a rate-limit process with hard tail dropping of packets
when tokens are unavailable, set the committed rate and committed burst to a nonzero
value, and set the excess burst to zero. Setting the excess burst to a nonzero value causes
the router to drop packets in a more friendly way.
Chapter 5: Creating Rate-Limit Profiles
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