QTECH QSW-2800 Инструкция по настройке - Manual (Page 170)

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created earlier and enter class mode. Then different policies (such as bandwidth limit, priority
degrading assigning new DSCP value) can be applied to different data streams. You can also
define a policy set that can be use in a policy map by several classes.
Apply QoS to the ports or the VLAN interfaces
Configure the trust mode for ports or bind policies to ports. A policy will only take effect on a
port when it is bound to that port.
The policy may be bound to the specific VLAN.
It is not recommended to synchronously use policy map on VLAN and its port.
Configure queue management algorithm
Configure queue management algorithm, such as sp, wrr, sp+wrr, and so on.
1. Configure class map.
Command Explanation
Global Mode
class-map
no class-map
Create a class map and enter class map
mode; the “no class-map <class-map-
name>
” command deletes the specified
class map.
match {access-group | ip
dscp | ip precedence
precedence-list>| ipv6 access-group
index-or-name> | ipv6 dscp | ipv6
flowlabel |vlan | cos
| c-vlan | c-cos
list>}
no match {access-group | ip dscp | ip
precedence | ipv6 access-group | ipv6 dscp |
ipv6 flowlabel | vlan | cos | c-vlan | c-cos}
Set matching criterion (classify data
stream by ACL, CoS, VLAN ID, IPv4
Precedent, IPv6 FL or DSCP, etc) for the
class map; the no command deletes
specified matching criterion.
2. Configure a policy map
Command Explanation
Global Mode
policy-map
no policy-map
Create a policy map and enter policy map
mode; the no command deletes the
specified policy map.
class <class-map-name> [insert-before
map-name>]
no class
After a policy map is created, it can be
associated to a class. Different policy or
new DSCP value can be applied to