Cisco 15327 - Manual (Page 228)

14-20
Ethernet Card Software Feature and Configuration Guide, R7.2
Chapter 14 Configuring Quality of Service
class-map match-any and class-map match-all Commands Example
class-map match-any and class-map match-all Commands Example
This section illustrates the difference between the class-map match-any command and the class-map
match-all command. The match-any and match-all options determine how packets are evaluated when
multiple match criteria exist. Packets must either meet all of the match criteria (match-all) or one of the
match criteria (match-any) in order to be considered a member of the traffic class.
Example 14-9 shows a traffic class configured with the class-map match-all command.
Example 14-9 Class Map Match All Command Examples
Router(config)# class-map match-all cisco1
Router(config-cmap)# match cos 1
Router(config-cmap)# match bridge-group 10
If a packet arrives with a traffic class called cisco1 configured on the interface, the packet is evaluated
to determine if it matches the cos 1 and bridge group 10. If both of these match criteria are met, the
packet matches traffic class cisco1.
In traffic class called cisco2, the match criteria are evaluated consecutively until a successful match
criterion is located. The packet is first evaluated to the determine whether cos 1 can be used as a match
criterion. If cos 1 can be used as a match criterion, the packet is matched to traffic class cisco2. If cos 1
is not a successful match criterion, then bridge-group 10 is evaluated as a match criterion. Each matching
criterion is evaluated to see if the packet matches that criterion. When a successful match occurs, the
packet is classified as a member of traffic class cisco2. If the packet matches none of the specified
criteria, the packet is classified as a member of the traffic class.
Note that the class-map match-all command requires that all of the match criteria must be met in order
for the packet to be considered a member of the specified traffic class (a logical AND operator). In the
example, cos 1 AND bridge group 10 have to be successful match criteria. However, only one match
criterion must be met for the packet in the class-map match-any command to be classified as a member
of the traffic class (a logical OR operator). In the example, cos 1 OR bridge group 10 OR ip dscp 5 have
to be successful match criteria.
Example 14-10 shows a traffic class configured with the class-map match-any command.
Example 14-10 Class Map Match Any Command Examples
Router(config)# class-map match-any cisco2
Router(config-cmap)# match cos 1
Router(config-cmap)# match bridge-group 10
Router(config-cmap)# match ip dscp 5
match spr1 Interface Example
In Example 14-11 , the SPR interface is specified as a parameter to the match input-interface CLI when
defining a class-map.
Example 14-11 Class Map SPR Interface Command Examples
Router(config)# class-map spr1-cos1
Router(config-cmap)# match input-interface spr1
Router(config-cmap)# match cos 1
Router(config-cmap)# end
Router# sh class-map spr1-cos1
Class Map match-all spr1-cos1 (id 3)