3Com Switch 4200G Configuration Guide

Applying ACLs on Ports 209
Configuration Example Configure ACL 4000 to deny packets whose 802.1p priority is 3.
<S4200G> system-view
[4200G] acl number 4000
[4200G-acl-ethernetframe-4000] rule deny cos 3
[4200G-acl-ethernetframe-4000] display acl 4000
Ethernet frame ACL 4000, 1 rule
Acl's step is 1
rule 0 deny cos excellent-effort(0 times matched)
Applying ACLs on
Ports
By applying ACLs on ports, you can enable the packet filtering.
■ You can filter inbound packets on each port. Inbound packets refer to packets
received on a port.
Configuration
Preparation
Before applying an ACL on a port, you must define the ACL first. For the ACL
configuration of time ranges, refer to Defining Basic ACLs, Defining Advanced ACLs,
and Defining Layer 2 ACLs.
Configuration Procedure
The ACLs applied on a port can combinations of different types of ACLs. Table 182
describes the ACL combinations.
cos vlan-pri Priority Defines the
802.1p priority of
the rule
vlan-pri: VLAN priority, in the range
of 0 to 7
time-range
time-name
Time range
information
Specifies the time
range in which
the rule is active
time-name: specifies the name of the
time range in which the rule is active;
a string of 1 to 32 characters
type protocol-type
protocol-mask
Protocol type of
Ethernet frames
Defines the
protocol type of
Ethernet frames
protocol-type: protocol type
protocol-mask: protocol type mask
Table 180 Rule information (Continued)
Parameter Type Function Description
Table 181 Apply an ACL on a port
Operation Command Description
Enter system view system-view -
Enter Ethernet port view interface interface-type interface-number -
Apply an ACL on a port packet-filter inbound acl-rule Required
Table 182 Combined application of ACLs
Combination mode Form of acl-rule
Apply all rules in an IP type ACL separately ip-group acl-number
Apply one rule in an IP type ACL separately ip-group acl-number rule rule
Apply all rules in a Link type ACL separately link-group acl-number
Apply one rule in a Link type ACL separately link-group acl-number rule rule
Apply one rule in an IP type ACL and one rule
in a Link type ACL simultaneously
ip-group acl-number rule rule link-group
acl-number rule rule