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JUNOSe 11.1.x Policy Management Configuration Guide
Table 27: IPv6 Classification Fields for a 576-bit CAM Entry
Related Topics
174
Variable-Sized CAM Classification for IPv6 Policies Examples
host1(config)#ipv6 policy-list ipv6Pol
host1(config-policy-list)#classifier-group tcpCLACL
host1(config-policy-list-classifier-group)#forward
host1(config-policy-list-classifier-group)#classifier-group colorCLACL
host1(config-policy-list-classifier-group)#forward
host1(config-policy-list-classifier-group)#classifier-group *
host1(config-policy-list-classifier-group)#filter
The policy ipv6Pol is requesting classification on Source Address (all 4 words),
Destination address (all 4 words) and Protocol. Table 27 on page 174 lists the
active classifiers in the policy named ipv6Pol and the size of each classifier.
Classifiers
Source address (first word)
Source address (second word)
Source Address (third word)
Source address (fourth word)
Destination Address (first word)
Destination address (second word)
Destination Address (third word)
Destination Address (fourth word)
Protocol
Destination Port
Source Port
Color
The sum of all classification fields requested in ipv6Pol is 304, which is greater
than 128-bit CAM entry size limit. Although this configuration fails to attach to
the interface in earlier releases, it is successfully attached to the interface,
beginning with this release, and the maximum 576-bit CAM entry is allocated
for this policy (three 576-bit entries, one for each classifier in the policy).
Performance Impact and Salability Considerations on page 175
Size Limit for IP and IPv6 CAM Hardware Classifiers on page 163
CAM Hardware Classifiers Overview on page 162
Size (Bits)
32
32
32
32
32
32
32
32
8
16
16
8
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