JUNOSe 7.2.x Policy Management Configuration Guide
112 ! CAM Hardware Classifiers
Ta b l e 1 7 lists the IP classifiers that share the same classifier entry location and
those that are combined to form a larger classifier field. The table also lists the rules
that apply to these types of classifier combinations.
The format in the classifier entry combinations in Ta b l e 1 7 is based on the
conventions for CLI commands, except that the pipe symbol ( | ) represents a
choice of one or both options to the left and right of the pipe symbol.
Local 1
Protocol 8
Source address 32
Source port 16
Source route class 8
TCP flags 6
ToS 8
Traffic class 3
User packet class 4
Table 16: Size Limit of Individual IP Classifiers (continued)
IP Classifier Size Limit (Bits)
Table 17: Size Limit of Combined IP Classifiers
IP Classifier Entry Combination Size Limit (Bits) Rule
Color or TCP flags or both 8 When you specify one or both of the color and
TCP flags classifiers, 8 bits are added to the
total classifier entry size.
Destination address 32 –
Destination address route class 8 –
[ Destination port ] and
[ [ ICMP type ] | [ ICMP code ] | [ IGMP type ] or nil ]
16 The ICMP type, ICMP code, IGMP type, and
destination port classifiers share the same
classifier field location.
When you specify the destination port
classifier, 16 bits are added to the total classifier
entry size. If you also specify the ICMP type,
ICMP code, and IGMP type classifier, no
additional bits are added.
[ IP flags ] | [ IP fragmentation ] | [ Traffic class ] 8 When you specify one or more of the IP flags,
traffic class, and IP fragmentation classifiers, 8
bits are added to the total classifier entry size.
Protocol 8 –
[ Source port ] and
[ [ ICMP type ] | [ ICMP code ] | [ IGMP type ] ]
16 The ICMP type, ICMP code, IGMP type, and
source port classifiers share the same classifier
field location.
When you specify the source port classifier, 16
bits are added to the total classifier entry size.
When you also specify the ICMP type, ICMP
code, and IGMP type classifiers, no additional
bits are added.