Figure 5: Aggregate Marking With Oversubscription - Juniper POLICY MANAGEMENT - CONFIGURATION GUIDE V11.1.X Configuration Manual

Committed packets are transmitted conditionally to rate limit S, which has a peak
rate of 6 Mbps and a committed rate of 2 Mbps; these packets can be demoted by
S to Y (yellow), in which case they are remarked TOS2 or TOS3. If S leaves them as
G (green), they are marked as TOS1. All conformed packets from A, B, and C are
also transmitted conditionally to S but arrive as Y because rate limits do not promote
packets in color. S is color-aware so these Y packets do not take away G tokens,
leaving them reserved only for the G packets coming from A, B, and C.

Figure 5: Aggregate Marking with Oversubscription

host1(config)# rate-limit-profile indiv two-rate hierarchical
host1(config-rate-limit-profile)# committed-action transmit conditional
host1(config-rate-limit-profile)# conformed-action transmit conditional
host1(config-rate-limit-profile)# exceeded-action drop
host1(config-rate-limit-profile)# committed-rate 10000000
host1(config-rate-limit-profile)# peak-rate 20000000
host1(config-rate-limit-profile)# exit
host1(config)# rate-limit-profile S two-rate hierarchical
host1(config-rate-limit-profile)# committed-action transmit conditional
host1(config-rate-limit-profile)# conformed-action transmit conditional
host1(config-rate-limit-profile)# exceeded-action drop
host1(config-rate-limit-profile)# committed-rate 20000000
host1(config-rate-limit-profile)# peak-rate 60000000
host1(config-rate-limit-profile)# color-aware
host1(config-rate-limit-profile)# exit
host1(config)# ip color-mark-profile A
host1(config-color-mark-profile)# green-mark TOS1
host1(config-color-mark-profile)# yellow-mark TOS2
host1(config-color-mark-profile)# red-mark TOS2
host1(config--color-mark-profile)# exit
host1(config)# ip color-mark-profile BC
host1(config-color-mark-profile)# green-mark TOS1
Chapter 5: Creating Rate-Limit Profiles
Hierarchical Rate Limits Overview
71