Chapter 12 QoS
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source/destination port number is a decimal value
(1~65535)
dscp Differentiated Services Code Point (DSCP) is an integer
value encoded in the DS field of an IP header. The DSCP is
an example of traffic marking because its value corresponds
with a preferred QoS as the packet traverses the network.
The DSCP value corresponds to a specific QoS. The six
most significant bits of the DiffServ field is called as the
DSCP, which is basically the six most significant bits of TOS
byte in IP header. So DSCP value range is 0-63.
action_parameter action_parameter controls the outgoing traffic flow rate for IP packet
matched the policy criteria specified by selector.
rate Committed access rate in minimum-maximum format. The
minimum rate is guaranteed the minimum rate of the
selected policy. When the maximum_rate is mentioned in
the action-parameter, the parameter is specified the
maximum rate of the selected policy. If maximum_rate is
not mentioned, it is used that maximum rate is same as
minimum rate.
type Unit of rate in kbps or mbps, specify the unit of bandwidth
in bits per sec.
12.2.2 Policy delete
delete rate_limit [policy_num]
Instruct the policy to be deleted. Each policy is indexed by the policy number in the policy list, user
should mention the policy number which one to be removed.
12.2.3 Policy display
show rate_limit
This CLI is used to display all policies user ever entered for WAN interface, shows all policy in the
policy list sequentially according to the policy number.
12.3 Step by Step Setup Instructions
WAN1 LAN1
192.168.1.0/24
192.168.2.0/24
A(60
%)
B(40%
)
10% Telnet
20% WWW
20% FTP
50% other
15% Telnet
30% WWW
30% FTP
25% other
WAN1
LAN1
Local
network
Loop-IP 6610
Loop-IP 6610