3Com 8807 - Page 204

204 CHAPTER 22: QOS CONFIGURATION
Traffic Priority
Configuration Example
Network requirements
Re-allocate service parameters according to the mapping table for DSCP 63 for the
packets from PC1 (IP 1.0.0.1) during the time range 8:00 to 18:00 everyday.
Network diagram
Figure 49 Network diagram for priority configuration
Configuration procedure
1 Define the time range.
# Define the time range from 8:00 to 18:00.
[SW8800] time-range 3Com 8:00 to 18:00 daily
2 Define the traffic from PC1.
# Create a number-based basic ACL 2000 and enter it.
[SW8800] acl number 2000
# Define ACL rule for the traffic from PC1.
[3Com-acl-basic-2000] rule 0 permit source 1.0.0.1 0 time-range 3Com
3 Define the CoS-> Conform-Level mapping table.
# Define the CoS-> Conform-Level mapping table. The switch allocates drop
precedence (all as 0 for the sake of simplification) for them when receiving
packets.
[SW8800] qos cos-drop-precedence-map 0 0 0 0 0 0 0 0
The modified CoS-> Conform-Level mapping table:
GE7/1/8
GE7/1/1
GE7/1/2
VLAN2,
1.0.0.1/8
VLAN3,
2.0.0.1/8
PC1
PC2
GE7/1/8
GE7/1/1
GE7/1/2
VLAN2,
1.0.0.1/8
VLAN3,
2.0.0.1/8
PC1
PC2
Tabl e 178 Modified CoS-> Conform-Level mapping table
CoS Value Drop-precedence
0 0
1 0
2 0
3 0
4 0
5 0