Digitalchina Networks DCS-3950 series User Manual

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DCS-3950 series Ethernet switch manual
Configuration result:
When QoS enabled in Global Mode, the egress queue bandwidth proportion of port
ethernet 0/0/1 is 1: 2: 4: 8. When packets have CoS value coming in through port ethernet
0/0/1, it will be map to the queue out according to the CoS value, CoS value 0 to 7
correspond to queue out 1, 1, 2, 2, 3,3,4, 4, respectively. If the incoming packet has no
CoS value, it is default to 5 and will be put in queue 6. All passing packets would not have
their DSCP values changed.
Scenario 2:
In port ethernet 1/2, set the bandwidth for packets from segment 192.168.1.0 to 10 Mb/s,
with a burst value of 4 MB, all packets exceed this bandwidth setting will be dropped.
The configuration steps are listed below:
Switch#config
Switch(config)#access-list 1 permit 192.168.1.0 0.0.0.255
Switch(config)#mls qos
Switch(config)#class-map c1
Switch(config-ClassMap)#match access-group 1
Switch(config-ClassMap)# exit
Switch(config)#policy-map p1
Switch(config-PolicyMap)#class c1
Switch(config--Policy-Class)#police 10000000 4000 exceed-action drop
Switch(config--Policy-Class)#exit
Switch(config-PolicyMap)#exit
Switch(config)#interface ethernet 0/0/2
Switch(Config-Ethernet0/0/2)#service-policy input p1
Configuration result:
An ACL name 1 is set to matching segment 192.168.1.0. Enable QoS globally, create a
class map named c1, matching ACL1 in class map; create another policy map named p1
and refer to c1 in p1, set appropriate policies to limit bandwidth and burst value. Apply this
policy map on port ethernet 0/0/2. After the above settings done, bandwidth for packets
from segment 192.168.1.0 through port ethernet 0/0/2 is set to 10 Mb/s, with a burst value
of 4 MB, all packets exceed this bandwidth setting in that segment will be dropped.
Scenario 3

Digitalchina Networks DCS-3950 series Specifications

General

Brand	Digitalchina Networks
Model	DCS-3950 series
Category	Network Router
Language	English