Configuring Qos Tokens; Qos Token Configuration Example - HP A6600 Configuration Manual

The start port number is 16384, the end port number is 32767, and 64 kbps bandwidth is reserved for RTP
packets. Set the maximum reserved bandwidth to 70% of the available bandwidth for the RTP priority queue.
When congestion occurs to the outgoing interface, RTP packets are assigned to the RTP priority queue.
Configuration procedure
# Enter system view.
<Sysname> system-view
# Enter interface view.
[Sysname] interface serial 1/0/1
# Set the maximum reserved bandwidth to 70% of the available bandwidth for the RTP priority queue.
[Sysname-Serial1/0/1] qos reserved-bandwidth pct 70
# Configure RTP priority queuing on interface Serial 1/0/1: the start port number is 16384, the end port
number is 32767, and 64 kbps of bandwidth is reserved for RTP packets. When congestion occurs to the
outgoing interface, RTP packets are assigned to the RTP priority queue.
[Sysname-Serial1/0/1] qos rtpq start-port 16384 end-port 32767 bandwidth 64

Configuring QoS tokens

Because the upper layer protocol TCP provides traffic control, CQ and WFQ may become invalid during FTP
transmission. QoS tokens can solve this problem. The token feature of QoS provides a flow control
mechanism for underlying-layer queues. This feature can control the number of packets sent to the interface
underlying-layer queues based on the number of tokens.
HP recommends setting the token number to 1 on an interface for FTP transmission.
If the upper layer protocol, UDP, for example, does not provide flow control, do not use the QoS token
function to improve data transmission efficiency.
To do...
1. Enter system view.
2. Enter interface view.
3. Specify the number of QoS tokens.
4. Shutdown the interface.
5. Bring up the interface.

QoS token configuration example

Network requirements
Specify the number of QoS tokens on interface Serial 1/0/1.
Configuration procedure
# Enter system view.
Command... Remarks
system-view —
interface interface-type
Applicable to only serial interfaces.
interface-number
Required.
qos qmtoken
The QoS token feature is disabled by
token-number
default.
shutdown Required.
You must re-enable the interface by using
shutdown and then undo shutdown to
undo shutdown
make the QoS token feature take effect.
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