Huawei v200r001 user manual III. Applying custom queue to the interface

User Manual - Configuration Guide (Volume 3)	Chapter 3
Versatile Routing Platform	Congestion Management

Table QC-3-14Configuration of queue length of the custom queue

Operation	Command
Configure the queue length of the custom	custom-listlist-number queue queue-number limit queue-limit
queue
Restore the default value of custom queue	no custom-list list-numberqueue queue-numberlimit
length

The queue length of the custom queue is 20 by default, with the value range of 0-32767 packets.

5)Configure the continuously sent byte number of the custom queue (optional),

The continuously sent byte number can be specified for each custom queue (the number of bytes that can be accommodated).

Perform the following task in the global configuration mode.

Table QC-3-15Configure the continuously sent byte number of the custom queue

Operation	Command
Configure the continuously sent byte number of	custom-list list-numberqueue queue-numberbyte-count
the custom queue	byte-count-number
Restore the default value of the continuously	no custom-list list-numberqueue queue-numberbyte-count
sent byte number of the custom queue

By default the continuously sent byte number of each queue is 1500 in each polling and the value range is 0-16777215 bytes.

byte-count-number: when the router dispatches the user queue of CQ, it keeps taking out packets from this queue to send till the sent byte count is no less than the value of byte-count-numberconfigured for this queue or until this queue is empty, then it turns to dispatch the next user queue of CQ. Therefore, the value of byte-count-numberwill affect the proportion of interface bandwidth occupied by each user queue of CQ, and determine the duration after which the router will dispatch the next queue of CQ.

If the value of byte-count-numberis too small, since the router will turn to the next queue only after it has at least sent one packet, the bandwidth actually obtained by respective queues may be quite different from what is expected. If the value of byte- count-numberis too big, long delay may be resulted from switching between the queues.

III. Applying custom queue to the interface

The configured custom queue can be applied to a specific interface, and each interface can only be allocated with one custom queue.

Perform the following task in the interface configuration mode.

Table QC-3-16Apply the custom queue to the interface

Operation	Command
Apply the custom queue to the interface	custom-group list-number
Restore the default congestion management policy at the interface	no custom-group

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