3Com 3C13636 Configuration Manual page 1327

3Com Router 3000 Ethernet Family
Configuration Guide
The rule will be deleted automatically when the matched interface is deleted.
VII. Defining/deleting DSCP match rule
DSCP (Differentiated Services Code Point) is a refined field from the 6 high bits of ToS
bytes in IP header by IETF DiffServ workgroup. In the solution submitted by DiffServ,
services are classified and traffic is controlled according to service requirements at
network ingress. Simultaneously, DSCP is set. In the network, packets are classified
with services like resource allocation and packet discard policy according to their DSCP
values.
The user can set classified matching rules using DSCP values.
Perform the following configurations in class view.
Table 3-26 Define/delete DSCP match rule
Define DSCP match rule
Delete DSCP match rule
VIII. Defining/deleting ip precedence match rule
Perform the following configurations in class view.
Table 3-27 Define/delete ip precedence match rule
Define ip precedence match rule
Delete ip precedence match rule
The configuration of the if-match ip precedence command will overwrite the previous
configurations.
IX. Defining/deleting RTP port match rule
Perform the following configurations in class view.
Table 3-28 Define/delete RTP port match rule
Define RTP port match rule
Delete RTP port match rule
Operation
Operation
Operation
if-match [ not ] rtp start-port starting-port-number
end-port end-port-number
undo if-match [ not ] rtp
3Com Corporation
Chapter 3 Congestion Management
Command
if-match [ not ] dscp dscp-value
undo if-match [ not ] dscp dscp-value
if-match [
ip-precedence-value
undo if-match [ not ] ip-precedence
Command
3-21
Command
not ] ip-precedence