Defining Classifiers

Classifiers examine the CoS value or alias of an incoming packet and assign it a level of service by setting its forwarding class and loss priority. For more information about classifiers, see the .

Table 146: Classifiers Configuration Options

Field	Function	Action
Classifier Configuration Summary
Classifier name	Displays the names of classifiers.	None.
Classifier type	Displays the classifier type. The following type of classifiers are supported: J Series (J6350), SRX210, SRX240, SRX650: dscp—DiffServ code point classifier for IPv4 dscp-ipv6—DiffServ code point classifier for IPv6 exp—MPLS experimental (EXP) bits classifier ieee-802.1—IEEE-802.1 classifier inet-precedence—IPv4 precedence classifier SRX3400, SRX3600, SRX5600, SRX5800: dscp—DiffServ code point classifier for IPv4 dscp-ipv6—DiffServ code point classifier for IPv6 ieee-802.1—IEEE-802.1 classifier inet-precedence—IPv4 precedence classifier	None.
Details of Classifiers
Incoming code point	Displays CoS values and aliases to which forwarding class and loss priority are mapped.	None.
Forwarding class name	Displays forwarding class names that are assigned to specific CoS values and aliases of a classifier.	None.
Loss priority	Displays loss priorities that are assigned to specific CoS values and aliases of a classifier.	None.
Add	Opens a page that allows you to define classifiers.	To add a classifier, click Add.
Edit	Opens a page that allows you to edit a selected classifier.	To edit a classifier, select a classifier in the summary page and click Edit.
Delete	Deletes a specified classifier.	To delete a classifier, select the classifier and click Delete.
Add Classifier
Classifier name	Specifies the name for a classifier.	To name a classifier, type the name—for example, ba-classifier.
Classifier type	Specifies a classifier type.	Select a classifier type from the drop-down list—for example, dscp, ieee-802.1, or inet-precedence.
Add	Opens a page that allows you to assign a forwarding class and loss priority to the specified CoS value and alias. A classifier examines the incoming packet's header for the specified CoS value and alias and assigns it the forwarding class and loss priority that you have defined.	To assign a code point, forwarding class, and loss priority to a specific CoS classifier, click Add.
Add Code Point Mapping/Edit Code Point Mapping
Code point	Specifies the CoS value in bits and the alias of a classifier.	To specify a CoS value and alias, either select preconfigured ones from the list or type new ones.
Forwarding class	Assigns the forwarding class to the specified CoS value and alias.	To assign a forwarding class, select either one of the following default forwarding classes or one that you have configured: expedited-forwarding—Provides low loss, low delay, low jitter, assured bandwidth, and end-to-end service. Packets can be forwarded out of sequence or dropped. best-effort—Provides no special CoS handling of packets. Typically, RED drop profile is aggressive and no loss priority is defined. assured-forwarding—Provides high assurance for packets within the specified service profile. Excess packets are dropped. network-control—Packets can be delayed but not dropped.
Loss priority	Assigns a loss priority to the specified CoS value and alias.	To assign a loss priority, select one: high—Packet has a high loss priority. low—Packet has a low loss priority.