Command:

priority-list queue-limit


Mode:

Router(config)#

Syntax:

priority-list list-number queue-limit [high-limit [medium-limit [normal-limit [low-limit]]]]

no priority-list list-number queue-limit


Syntax Description:

list-number

Any number from 1 to 16 that identifies the priority list.

high-limit medium-limit normal-limit low-limit

(Optional) Priority queue maximum length. A value of 0 for any of the four arguments means that the queue can be of unlimited size for that particular queue.

 

Command Description:

To specify the maximum number of packets that can be waiting in each of the priority queues, use the priority-list queue-limit global configuration command. To select the normal queue, use the no form of this command.

If a priority queue overflows, excess packets are discarded and quench messages can be sent, if appropriate, for the protocol.

The default queue limit arguments are listed below.

Table: Default Priority Queue
Packet Limits

Priority Queue Argument Packet Limits

high-limit

20

medium-limit

40

normal-limit

60

low-limit

80


Note   If priority queueing is enabled and there is an active ISDN (Integrated Services Digital Network) call in the queue, changing the configuration of the priority-list queue-limit command drops the call from the queue. For more information about priority queueing, refer to the Quality of Service Configuration Guide, Release 12.0.

 

Example:

The following example sets the maximum packets in the priority queue to 10:

Router(config)#priority-list 2 queue-limit 10 40 60 80


Misconceptions:

None

Related Commands:
priority-group
priority-list default
priority-list interface
priority-list protocol
show queueing

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