3Com 4007, Command Reference Manual

Page: 118 / 574

118 C
HAPTER
6: B
RIDGE
-
WIDE
P
ARAMETERS
✓
Layer 2
Switching
Modules
Multilayer
Switching
Modules
bridge cos summary Displays whether Class of Service (CoS) is enabled or disabled on Layer 2
Switching Modules; shows how the eight possible priority values are
assigned (or, if CoS is disabled, how they were last assigned) to the two
queues; and shows the rate limit that exists on the high priority queue
(queue 1).
Valid Minimum Abbreviation
b c s
Important Considerations
■
By default, CoS is enabled and the eight priority values (traffic classes
0 – 7) are divided between the two queues in accordance with IEEE
802.1p recommendations — that is, queue 1 (high priority) has classes
4, 5, 6, and 7 and queue 2 (low priority) has classes 0, 1, 2, and 3.
■
If CoS is disabled (indicated at the top of the display), the display
reflects the most recent configuration even though it is no longer
active.
Options
Fields in the Bridge CoS Summary Display
Prompt Description Possible Values [Default]
Queue
index
number Number of the queue for
which you want to see
information
■
1
■
2
■
all
–
Field Description
Queue Number of the queue. Queue 1 is always the high priority
queue. Queue 2 is always the low priority queue.
Rate limit Percentage of traffic allowed on the high priority queue.
See the
Switch 4007 Implementation Guide for more
information about the rate limit option.
Traffic classes Priority values assigned to each queue. The IEEE 802.1p
standard specifies eight possible values (0 – 7), each of
which is intended to signify a certain kind of traffic.