Juniper JUNOSE 11.1.X - QUALITY OF SERVICE CONFIGURATION GUIDE 3-21-2010, Руководство по настройке

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Table 35: show traffic-class-group Output Fields (continued)
Field Description Field Name
Name of the traffic class traffic-class
Number of times group is referenced by QoS profiles Referenced in qos-profiles
QoS profiles that reference this traffic class Referenced by QoS profiles
Related Topics
Configuring Traffic-Class Groups That Define Service Levels on page 15
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show traffic-class-group
Monitoring Queue Thresholds
Purpose
Display the color-based thresholds for queues on each egress slot.
Showing queue thresholds by queue profile shows buffer memory information for
each queue profile and, within that profile, shows the thresholds for each region.
In addition, showing queue thresholds by region organizes the buffer memory
information by queue region and, within each region, shows the buffer allocations
for each queue profile.
Action
To display the color-based queue thresholds for each of the 2000 video queues when
8000 total queues are configured:
host1# show qos queue-thresholds egress-slot 9 queue-profile video
queue-profile video 2000 queues
total
egress exceeded conformed committed committed
region memory length length length memory
------ ----------- -------- --------- --------- ---------
0 0MB - 4MB 34944 69888 139648 279296000
1 4MB - 8MB 24448 48896 97792 195584000
2 8MB - 12MB 14080 28032 55936 111872000
3 12MB - 16MB 7040 14080 28032 56064000
4 16MB - 20MB 5248 10496 20992 41984000
5 20MB - 24MB 1280 2560 5120 10240000
6 24MB - 28MB 1152 2176 4224 8448000
7 28MB - 32MB 896 1792 3456 6912000
As shown, when all of the egress memory in use is between 0 MB and 4 MB, each
video queue can queue 139,648 bytes of committed traffic. Because the default
conformed fraction is 50 percent and the default exceeded fraction is 25 percent,
half of the committed length, or 69,888 bytes, can be queued before conformed
traffic is dropped, and one quarter of the committed length, or 34,944 bytes, can be
queued before exceeded traffic is dropped. While memory fills, the video queues are
given progressively smaller amounts of memory. For example, when 28 to 32 MB
of buffer memory is in use, each video queue is limited to 3456 bytes. While memory
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Monitoring Queue Thresholds
JUNOSe 11.1.x Quality of Service Configuration Guide