ATL Telecom R1-SW Ethernet Switch - Manual (Page 186)

R1-SW24L2B User’s Manual
9-18
Configuring a Class Map
A class-map is a mechanism that you use to name and to isolate a specific traffic flow (or class)
from all other traffic. The class-map defines the criteria used to match against a specific traffic
flow to further classify it. If you have more than one type of traffic that you want to classify, you
can create another class-map and use a different name. After a packet is matched against the
class-map criteria, you further classify it through the use of a policy-map.
You can classify packets and assign them to specific queues based on the following criteria:
Table 9-1 Criteria for packet classification
Criterion Description Value
cos The CoS (Class of Service) value 0 ~ 7
dsap The DSaP (Destination Service Access Point) value 0 ~ 255
dscp The DSCP (DiffServe Code Point) value 0 ~ 63
tos The ToS (Type of Service) value 0 ~ 7
ip-prec The IP precedence value 0 ~ 7
ip-sa The source IP address
ip-da The destination IP address
mac-sa The source MAC address
mac-da The destination MAC address
tcp-dpn The destination TCP port number 0 ~ 65535
tcp-flag The TCP flag value
tcp-spn The source TCP port number 0 ~ 65535
udp-spn The source UDP port number 0 ~ 65535
udp-dpn The destination UDP port number 0 ~ 65535
ether-type The Ethernet Type filed value 0 ~ 65535
input-port The input port number
output-port The output port number
protocol The L4 Protocol field value 0 ~ 255
vlan-sid The VLAN ID that the input port belongs to. 1 ~ 4094
vlan-did The VLAN ID that the output port belongs to. 1 ~ 4094
CoS field can not be included with DSCP or IP precedence in the same class-map. To make the
CoS field available, enable IEEE 802.1p using 802.1p classification enable command.
If IEEE 802.1p is enabled, DSCP and IP precedence criteria in class-maps are not available. To
use the DSCP or IP precedence instead of CoS, disable the IEEE 802.1p using 802.1p