Cisco ME 3600X, Справочник по командам

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Cisco ME 3800X and ME 3600X Switch Command Reference
OL-28238-01
Chapter 2 Cisco ME 3800X and ME 3600X Switch Cisco IOS Commands
queue-limit
queue-limit
To set the queue maximum threshold for Weighted Tail Drop (WTD) in an output policy map, use the
queue-limit command in policy-map class configuration mode. To return to the default, use the no form
of this command.
queue-limit { limit [ bytes bytes | us microseconds ] | cos value | discard-class value | dscp value |
exp value | precedence value | qos-group value }
no queue-limit { limit [ bytes | us ] | cos value | discard-class value | dscp value | exp value |
precedence value | qos-group value }
Syntax Description
Defaults Default queue limits depend on the interface:
•
10 Mb/s interfaces: 10000 us or 12 KB
•
100 Mb/s interfaces: 1000 us or 12KB
•
1000 Mb/s interfaces: 100 us or 12 KB
•
10 Gb/s interfaces: 100 us or 120 KB
Command Modes
Policy-map class configuration
limit [ bytes | us ] The threshold limit:
•
For bytes
bytes
,
enter the maximum threshold in bytes. The range is
from 200 to 491520. The default depends on the interface speed. On
10/100/1000 Mb/s interfaces, the default is approximately 12000 bytes.
On 10 Gb/s interfaces, the default is approximately 120000 bytes.
•
For us microseconds , enter the maximum threshold in microseconds.
This is the default for specifying threshold. The range is from 1 to 3932.
The default depends on the interface: 10 Mb/s interfaces: 10000 us,
100 Mb/s interfaces: 1000 us, 1000 Mb/s and 10 Gb/s interfaces: 100 us.
If you do not enter bytes bytes or us microseconds , the default is us .
cos value Specifies a cost of service (CoS) value. The range is from 0 to 7.
discard-class value Specifies a drop precedence for a packet during congestion management. The
range is 0 to 7. This is the preferred way to specify a subclass within a queue
to establish drop preference based on a queue buffer thresholds.
dscp value Specifies a Differentiated Services Code Point (DSCP) value. The range is
from 0 to 63.
exp value Specifies an MPLS exponential value. The range is from 0 to 7.
precedence value Specifies an IP precedence value. The range is from 0 to 7.
qos-group value Specifies a quality-of-service (QoS) group value. The range is from 0 to 99.