Configuring Priorities For Protocol Packets - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide
default (be)
The following table gives the drop precedence values for AF classes.
Table 5-3 Drop precedence values for AF classes
Drop
precedence
Low
Medium
High
The following table gives the IP precedence-DSCP map.
Table 5-4 IP precedence-DSCP map
5
4
3
2
1
0
On a distribution network, traffic is usually classified by the combination of DSCP and
IP quintuple. Different traffic streams are offered appropriate QoS according to the
traffic behaviors configured on each node.

5.2 Configuring Priorities for Protocol Packets

You may change priorities of protocol packets generated by current host.
Perform the following configuration in system view.
Table 5-5 Configure a priority for a type of protocol packets
Configure a priority for the packets of the
specified protocol
Keyword
000000
AF1 class
001010
001100
001110
IP precedence
Operation
3Com Corporation
Chapter 5 Protocol Packet Priority Configuration
DSCP value (binary)
AF2 class
010010 011010
010100 011100
010110 011110
EF
AF4
AF3
AF2
AF1
BE
protocol-priority
protocol-type
ip-precedence | dscp dscp-value }
5-3
DSCP value (decimal)
0
AF3 class AF4 class
100010
100100
100110
DSCP class
Command
protocol-type
{ ip-precedence