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• Only one match command can be entered per class map.
• The class map uses the Access Control List filtering engine, so you must
also set an ACL mask to enable filtering for the criteria specified in the
match command. See “mask (IP ACL)” on page 4-123 and “mask
(MAC ACL)” on page 4-133 for information on configuring an
appropriate ACL mask.
Example
This example creates a class map called “rd_class#1,” and sets it to match
packets marked for DSCP service value 3:
This example creates a class map call “rd_class#2,” and sets it to match
packets marked for IP Precedence service value 5:
This example creates a class map call “rd_class#3,” and sets it to match
packets marked for VLAN 1:
Console(config)#class-map rd_class#1_ match-any
Console(config-cmap)#match ip dscp 3
Console(config-cmap)#exit
Console(config)#access-list ip mask-precedence in
Console(config-ip-mask-acl)#mask any any dscp
Console(config-ip-mask-acl)#
Console(config)#class-map rd_class#2 match-any
Console(config-cmap)#match ip precedence 5
Console(config-cmap)#exit
Console(config)#access-list ip mask-precedence in
Console(config-ip-mask-acl)#mask any any precedence
Console(config-ip-mask-acl)#
Console(config)#class-map rd_class#3 match-any
Console(config-cmap)#match vlan 1
Console(config-cmap)#exit
Console(config)#access-list mac mask-precedence in
Console(config-ip-mask-acl)#mask any any vid 1
Console(config-ip-mask-acl)#