Junos OS

Why is the ans C? Thanks in advanced

[edit firewall family inet filter COS-CLASSIFIER]

user@router# show

term MANAGER {

from {

source-address {

192.168.200.0/25;

}

destination-address {

100.100.100.1/32;

}

}

then {

forwarding-class expedited-forwarding;

accept;

}

}

term ALL-OTHER-TRAFFIC {

then accept;

}

[edit interfaces ge-0/0/1]

user@router# show

unit 0 {

familyinet {

filter {

input COS-CLASSIFIER;

}

address 192.168.200.1/24;

}

}

Which type of classifier is being used in this CoS configuration?

A. behavior aggregate
B. policer
C. multifield
D. forwarding policy

It is multifield.

In the Juniper Networks® Junos® operating system (Junos OS), you configure a multifield classifier with a firewall filter and its associated match conditions. This enables you to use any filter match criteria to locate packets that require classification.

Check for more here:

https://www.juniper.net/documentation/en_US/junos12.3/topics/concept/mf-classifiers-overview-cos-config-guide.html


=====

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Based on the configuration shown in the initial post, how can we see which classifer it belongs to?

Classification means to put similar packet types in queues/forwarding classes. You can do this classification either using MF or BA.

This term says that if there is packet coming from 192.168.200.0/25 range and going to 100.100.100.1/32, then put it in expedited-forwarding class.

term MANAGER {

from {

source-address {

192.168.200.0/25;

}

destination-address {

100.100.100.1/32;

}

}

then {

forwarding-class expedited-forwarding;

accept;

=====

If this worked for you please flag my post as an "Accepted Solution" so others can benefit. A kudo would be cool if you think I earned it.