Quality of Service
Configuring QoS - General
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Cisco Small Business 300 Series Managed Switch Administration Guide
22
To map DSCP to queues:
STEP 1
Click
Quality of Service
>
General
>
DSCP to Queue
.
The DSCP to Queue page contains
Ingress DSCP
. It displays the DSCP value in
the incoming packet and its associated class.
STEP 2
Select the
Output Queue
(traffic forwarding queue) to which the DSCP value is
mapped.
STEP 3
Click Apply. The Running Configuration file is updated.
Configuring Bandwidth
The Bandwidth page enables users to define two values, Ingress Rate Limit and
Egress Shaping Rate, which determine how much traffic the system can receive
and send.
The ingress rate limit is the number of bits per second that can be received from
the ingress interface. Excess bandwidth above this limit is discarded.
The following values are entered for egress shaping:
•
Committed Information Rate (CIR)
sets the average maximum amount of
data allowed to be sent on the egress interface, measured in bits per
second
DSCP
59
51
43
35
27
19
11
3
Queue
7
7
8
6
5
4
3
1
DSCP
58
50
42
34
26
18
10
2
Queue
7
7
8
6
5
4
3
1
DSCP
57
49
41
33
25
17
9
1
Queue
7
7
8
6
5
4
3
1
DSCP
56
48
40
32
24
16
8
0
Queue
7
7
7
8
7
7
1
2
Table 6 DSCP to Queue Default Mapping – 8 Queues System (8 is highest)
