3Com Switch 7750 SeriesCommand Reference Guide – ACL Chapter 1 ACL Commands1-13DescriptionUse the packet-filter command to activate ACL on a port to filter packets.Use the undo packet-filter command to cancel it.Note:ARP packets are allowed to pass by default on the Switch 7750. You cannot use thepacket-filter command to filter ARP packets, even though you have used the rulecommand to define a Layer 2 ACL, in which the argument protocol is defined as ARP.Example# Apply ACL 2000 on Ethernet 3/0/1 to filter packets.[3Com-qoss-Ethernet3/0/1] packet-filter inbound ip-group 20001.1.12 reset acl counterSyntaxreset acl counter { all | acl-number | acl-name }ViewUser viewParameterall: All ACLs (including those identified by a number or a name).acl-number: The sequence number of an ACL, ranging from 2000~3999.acl-name: ACL name, a case insensitive character string, which must start with anEnglish letter (a-z or A-Z), and there should not be a space or quotation mark in it; keyword all is not allowed to use.DescriptionUse the reset acl counter command to clear ACL statistics.Table 1-7 The comparison between reset commands of statistics informationCommand Functionreset acl counterReset the statistics information of the ACL which is used tofilter or classify the data treated by the software of a switch.The case includes: ACL cited by route policy function, ACLused for controlling logon user, etc.