Applying Custom-List On The Interface - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide
IV. Configuring length of the queue
Designate length for a custom queue (i.e. Capacity of the queue).
Perform the following configuration in system view.
Table 3-13 Configure the length of the queue
Configure the length of the
queue
Restore the default length of
each queue
The queue-length argument specifies the maximum queue length; it defaults to 20.
V. Configuring the queue continuously sending bytes
Configure the bytes of packets sent by polling of each queue.
Perform the following configuration in system view.
Table 3-14 Configure the queue continuously sending bytes
Configure
continuously sending bytes
Recover the default value of
sending bytes
In which:
byte-count: When Router dispatches user queue of CQ, it will continuously pick out the
packets to send from this queue till the sending bytes are no less than value of
byte-count configured for this queue or the queue is empty, then it will dispatch another
user queue of CQ. So the value of byte-count will affect the proportion of interface
bandwidth occupied by every user queue of CQ, and also determine the time interval of
dispatching another queue of CQ by the Router. The default byte number of byte-count
is 1500.
If the value of byte-count is too small, since the router won't treat the packets in the next
queue unless at least one packet in the former one is sent out, the actual acquired
bandwidth of a queue would be far from that expected. If byte-count is too large, it may
cause great switch delay between different queues.

3.4.2 Applying Custom-list on the Interface

Perform the following configuration in interface view.
Operation
Operation
the queue
3Com Corporation
Chapter 3 Congestion Management
Command
qos cql cql-index
queue-length queue-length
undo qos cql cql-index queue queue-number
queue-length queue-length
Command
qos cql cql-index queue queue-number serving
byte-count
undo qos cql cql-index queue queue-number
serving
3-14
queue queue-number