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Only when a new class is cre ated, this field is a selector field. After class creation this becomes a
non-configurable field displaying the configured class type.
Class Layer 3 Protocol - Indicates h ow to interpret the any layer 3. This lists types of packets
supported by Diffserv. Layer 3 Protocol option is availa ble only when user sele cts cla ss type a s 'All' .
Options:
• IPv4
• IPv6
Only when a new class is cre ated, this field is a selector field. After class creation this becomes a
non-configurable field displaying the configured class type.
Class Match Selector - This lists all match criteria from which one can be sele cted to be adde d to a
specified class. The match criterion 'Every' denotes that every packet is considered to match the
specified class and no additional input informatio n is needed. The content of this drop down list varies
for a specified class based on the selection of the match criteri on 'Reference Class':
If the specified class does not reference any other class, the 'Reference Class' match criterion is
included in the drop down match crite ria list. A class reference can be established by selecting
'Reference Class' and invo king the 'Add Match Criteria' button.
If the specified class references another class, the 'Reference Class' match criterion is not
included in the drop down match criteria list. This prevents the user from trying to add yet another
class reference, since a specified class can reference at most one other class of the same type.
Moreover, a 'Remove Class Reference' button appears on the scre en that can be invoked to
remove the current class reference.
Configurable Data
Class Name - This is a case-sensitive alphanumeric string from 1 to 31 characters uni quely
identifying a class. Class name 'default' is rese rved and must not be used.
Non-Configurable Da ta
Class Type - Displays type of the configured class as 'all', 'any', or 'acl'. Only when a new class is
created, is this field a selector field. After class creation this becomes a non-configurable field.
Match Criteria - Displays the configured match criteria for the specified cla ss.
Values - Displays the values of the configure d match criteria.
Command Buttons
Submit - Send the updated screen to the switch and cause the changes to take effect on the switch
but these changes will not be retained across a power cycle unless a save is performed.
Cancel - Cancel the currently selected fil t er.
Delete - Delete the currently selected filter.
Rename - Allows to rename a spe cified class.
Add Match Criteria - Only one match criterion can be specified each time this button is invoked.
Based on the selected m atch criterion, an individual match criterion screen i s provided to configure its
value.
! Match criteria cannot be deleted from a class. The class mu st be deleted in order to remove
the match criteria.
Remove Class Reference - This button appears on the screen only if a specified class references
another class. The current class referen ce, of the spe cified class, i s removed by i nvoking this b utton.