Accton Technology ES4626 - Manual (Page 270)

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bandwidth for packets from segment 192.168.1.0 through port ethernet 1/2 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:
Fig 8-7 Typical QoS topology
As shown in the figure, inside the block is a QoS domain, SwitchA classifies different
traffics and assigns different IP precedences. For example, set IP precedence for packets
from segment 192.168.1.0 to 5 on port ethernet 1/1. The port connecting to switch2 is a
trunk port. In SwitchB, set port ethernet 1/1 that connecting to swtich1 to trust IP
precedence. Thus inside the QoS domain, packets of different priorities will go to different
queues and get different bandwidth.
The configuration steps are listed below:
QoS configuration in SwitchA:
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
QoS
Server
SwitchC
SwitchB
SwitchA