288-Bit Ipv6 Classification Example; Table 25: Ipv6 Classification Fields For A 144-Bit Cam Entry; Table 26: Ipv6 Classification Fields For A 288-Bit Cam Entry - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - POLICY MANAGEMENT CONFIGURATION GUIDE 2010-10-04 Configuration Manual

JunosE 11.3.x Policy Management Configuration Guide

288-bit IPv6 Classification Example

164

Table 25: IPv6 Classification Fields for a 144-bit CAM Entry

Classifiers
Source address (first word)
Destination address (first word)
Destination port, ICMPv6 type, ICMPv6 code
Protocol
Color and TCP flags
TC field
The sum of all classification fields requested in ipv6Pol is 104. This size causes Policy
Manager to use 144-bit CAM entry for every classifier in this policy. One CAM entry is
needed for each classifier in the policy and therefore, four 144-bit CAM entries are
needed in all.
The following example creates and attaches a policy, which requests classification on
a single host address and TCP. The configuration exceeds the 128 bit limit.
Match all TCP packets from host 1:1:1:1:1:1:1:1 to any DA
1.
host1(config)#ipv6 classifier-list sourceCLACL source-address 1:1:1:1:1:1:1:1/128 tcp
Create an IPv6 policy list.
2.
host1(config)#ipv6 policy-list ipv6Pol
host1(config-policy-list)#classifier-group sourceCLACL
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) and
Protocol. Table 26 on page 164 lists the active classifiers in the policy named ipv6Pol
and the size of each classifier.

Table 26: IPv6 Classification Fields for a 288-bit CAM Entry

Classifiers
Source address (first word)
Source address (second word)
Source Address (third word)
Source Address (fourth word)
Size (Bits)
32
32
16
8
8
8
Size (Bits)
32
32
32
32
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