Accton Technology ES4710BD User Manual page 351

An ACL name 1 is set to matching segment 192.168.1.0. QoS was enabled globally, a class map
named c1 was created, matching ACL1 in class map; another policy map named p1 was created and
refers to c1 in p1, appropriate policies were set to limit bandwidth and burst value. This policy map
was applied on Ethernet port 1/2. After the above settings were done, bandwidth for packets from
segment 192.168.1.0 through Ethernet port 1/2 is was set to 10 Mbps, with a burst value of 4 MB,
all packets exceeding this bandwidth setting in that segment will be dropped.
Scenario 3:
As shown in the figure, inside the block is a QoS domain, switch1 classifies different traffic and
assigns different IP precedence. For example, set IP precedence for packets from segment
192.168.1.0 to 5 on Ethernet port 1/1. The port connecting to switch2 is a trunk port. In Switch2, set
Ethernet port 1/1 that connecting to swtich1 to trust IP precedence. Thus inside the QoS domain,
packets of different priority will go to different queues and get different bandwidth.
The configuration steps are listed below:
QoS configuration in Switch1:
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
EES4710BD 10 Slots L2/L3/L4 Chassis Switch
Server
Fig 16-7 Typical QoS topology
350
QoS domain
Switch3
Switch2
Switch1