3Com 10014299 By default, no priority queue is established, Protocol-name queue-option queue

Configuring Congestion Management 687

lengths of various queues, and the number of bytes that may be continuously transmitted by polling of every queue.

The priority queue may be configured according to the following methods:

1Configure the priority queue according to the network layer protocol

Based on packet length, TCP/UDP port number, whether or not matching ACL, you can classify data packets, so that they can enter the queues with different priority.

Perform the following configurations in system view.

Table 721 Configure the Priority Queue According to the Network Layer Protocol

Operation	Command
Configure the priority queue according to	qos pql pql-indexprotocol
the network layer protocol	protocol-name queue-option queue {
	top middle	normal bottom }
Delete the classification policy in the	undo qos pql	pql-index protocol
priority queue	protocol-name queue-option queue {
	top middle	normal bottom }

By default, no priority queue is established.

Among them, pql-indexis the group number of the priority queue, and protocol-nameis the protocol name, the current value may be IP.

With protocol-nameas IP, value of queue-optionis listed in the following table:

Table 722 Values of Queue-Option with Protocol as IP

queue-option	Meaning
Empty	All IP packets can be processed into queue
acl acl-number (1∼199)	All IP packet fragments can be processed into
	priority queue
fragments	IP packets defined by theacl-number(normal) can
	be processed into priority queue
greater-than bytes (0∼65535)	IP packet with a length less than a certain value can
	be processed into queue
less-than bytes (0∼65535)	IP packet with a length greater than a certain value
	can be processed into queue
tcp port (0∼6553)	With the source or destination TCP port of IP packet
	being the specified port, the packet can be
	processed into queue.
udp port (0∼65535)	With the source or destination UDP port of IP
	packet being the specified port, the packet can be
	processed into priority queue.

2Configure the priority-list queuing according to the interface

The data packets can be classified according the different types of interfaces into which the data packets are input, and be input into different priority queues.

Please perform the following configurations in the system view

Table 723 Configure the Priority-List Queuing According to the Interface

Operation	Command
Configure the priority-list queuing	qos pql	pql-indexinbound-interface
according to the interface	interface-type interface-number
	queue {	top middle normal
	bottom }