2100 CHAPTER 138: IP V4 ACL CONFIGURATION COMMANDStext: IPv4 ACL rule description, a string of up to 127 characters.Description Use the rule comment command to create or modify an ACL rule description,for example to describe the purpose of the ACL rule or the parameters it contains.You will fail to do that if the specified rule does not exist.Use the undo rule comment command to remove the ACL rule description.By default, no rule description is created.Example # Create a rule in ACL 2000 and define the rule description. system-view[Sysname] acl number 2000[Sysname-acl-basic-2000] rule 0 deny source 1.1.1.1 0[Sysname-acl-basic-2000] rule 0 comment This rule is used in eth 1# Create a rule in ACL 3000 and define the rule description. system-view[Sysname] acl number 3000[Sysname-acl-adv-3000] rule 0 permit ip source 1.1.1.1 0[Sysname-acl-adv-3000] rule 0 comment This rule is used in eth 1# Create a rule in ACL 4000 and define the rule description. system-view[Sysname] acl number 4000[Sysname-acl-ethernetframe-4000] rule 0 deny cos 3[Sysname-acl-ethernetframe-4000] rule 0 comment This rule is used in eth 1# Create a rule in ACL 5000 and define the rule description. system-view[Sysname] acl number 5000[Sysname-acl-user-5000] rule 0 permit l2 14 20 10[Sysname-acl-user-5000] rule 0 comment This rule is used in eth 1step (for IPv4)Syntax step step-valueundo stepView Basic IPv4 ACL view, advanced IPv4 ACL view, Ethernet frame header ACL viewParameter step-value: IPv4 ACL rule numbering step, in the range 1 to 20.Description Use the step command to set a rule numbering step.Use the undo step command to restore the default.By default, rule numbering step is five.