3com 8807 Reference Guide

Page of 1099
216
C
HAPTER
 16: ACL C
OMMANDS
Using the acl command, you can create an ACL named "acl-name". And the type 
of this ACL is decided by keywords: "advanced", "basic" or "link". After 
entering a corresponding ACL view, no matter the ACL is identified by a number 
or a name, you can use the rule command to create rules of this named ACL (you 
can exit ACL view by using the quit command).
You can select the match-order keyword to specify whether to match ACL rules 
in configuration order or depth-first order (matching the rules with smaller range 
first). By default, the former mode is selected. You cannot modify the matching 
order once you specify it. To do so, you have to delete all rules of the ACL and 
specify a matching order for it again.
The user-defined ACL matching order takes effect only when multiple rules of one 
ACL are applied at the same time. For example, an ACL has two rules. If the two 
rules are not applied simultaneously, even if you configure the matching order to 
be depth first, the switch still matches them according to their application order. 
If one rule is a subset of another rule in an ACL, it is recommended to apply the 
rules according to the range of the specified packets. The rule with the smallest 
range of the specified data packets is applied first, and then other rules are applied 
based on this principle.
If one ACL is used, you cannot use the undo acl all command to delete any ACL.
Related command: rule.
Example
# Specify depth first order as the match order of number 2000 ACL.
<SW8800> system-view
 
System View: return to User View with Ctrl+Z.
 
[SW8800] acl number 2000 match-order auto 
display acl config
Syntax
display acl config { all | acl-number | acl-name }
View
Any view
Parameter
all: Displays all ACLs (both number- and name-identified ones).
acl-number: Serial number of the ACL to be displayed, in the range of 2000 to 
4999.
acl-name: Name of the ACL to be displayed. String parameter which must start 
with an English letter ([a-z, A-Z]) and no space is allowed in it.
Description
Use the display acl config command to view the configuration details of the 
ACL, including all the rules, their serial numbers, quantities and number of bytes 
of matched packets.