Figure 25: Dynamic Rate When Video Flow Starts; Table 10: Data When Video Flow Stops - Juniper JUNOSE 11.1.X - QUALITY OF SERVICE CONFIGURATION GUIDE 3-21-2010 Configuration Manual

JUNOSe 11.1.x Quality of Service Configuration Guide
The most liberal case heavily reduces VOQL and changes of rate, leading to a shared
shaper that quickly converges. The conservative configuration overreacts to VOQL
and the change of rate, and converges very slowly.
Figure 25 on page 96 shows a graph of the dynamic rate when the video flow starts.

Figure 25: Dynamic Rate When Video Flow Starts

Table 10 on page 96 lists the dynamic rate as the video flow stops for the five classes
Stopping Video Flow
of simple shared shaper controls. Results might vary because the amount of video
measured in the first falling period is random, in the range 0–4 Mbps non-inclusive.

Table 10: Data When Video Flow Stops

Figure 26 on page 97 shows a graph of the dynamic rate when the video flow stops.
96
Sample Process for Controlling the Simple Shared Shaper Algorithm
Period of Dynamic Rate, in Kbps
Control 1 2 3
Most 11000 12132 15000
liberal
Liberal 11000 11584 14146
Moderate 11000 11728 13364
Conservative 10955 11278 12208
Most – – –
conservative
4 5 6 7
15000 15000 15000 15000
14786 14946 14986 14996
14182 14591 14795 14897
12906 13429 13822 14116
– – – –
8 9 10
15000 15000 15000
14999 14999 15000
14948 14974 14987
14337 14503 14701
– – –