Allied Telesis AT-FS970M Series - Manual (Page 1630)

Chapter 98: Quality of Service (QoS)
1630
Note
If a conflict occurs between the settings in two class maps assigned
to the same policy map, priority is given to the class map that was
attached to the policy map first. An example of this type of conflict
occurs when a packet meets the classification requirements of two
class maps each configured to the same policy map and set to apply
two different priority settings to the packets.
Filtering
Procedures
The following QoS filtering procedures are provided:
 “Adding an Access Control List to a Class Map” on page 1630
 “Adding a CoS Value to a Class Map” on page 1632
 “Adding a DSCP Value to a Class Map” on page 1633
 “Adding IPv4 Precedence to a Class Map” on page 1633
 “Adding MAC-Type to a Class Map” on page 1634
 “Adding an Ethernet Format and Protocol to a Class Map” on
page 1634
 “Adding a TCP Flag to a Class Map” on page 1635
 “Adding a VLAN to a Class Map” on page 1635
Adding an Access Control List to a Class Map
You can add an Access Control list to a class map by specifying an ACL
group name or group number. The MATCH ACCESS-GROUP command
with the group-name parameter allows you to add an IPv4 ACL name to a
class map. The MATCH ACCESS-GROUP command with the group-
Use the specified DSCP value as a
matching criterion. match dscp < 0-63 >
Use the specified IP precedence as a
matching criterion. match ip-precedence < 0-7 >
Set the MAC type as a matching criteria for
a class-map. match mac-type
<
12bcast|12mcast|12ucast >
Set an Ethernet format and/ or protocol as a
matching criteria. match eth-format layer-two-format
protocol layer-three-protocol
Set one or more TCP flags as a matching
criteria. match tcp-flags ack|fin|rst|syn|urg
Define the VLAN ID used as a matching
criteria. match vlan < 1-4094 >
Table 192. Class-Map Metering Commands (Continued)
To Do this Task Use this Command