Cisco 7604 Configuration Guide - Page 83
Caution, Step 1, Reallocating Rules Between Features, on A-8
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Chapter 4 Configuring Security Contexts Managing Memory for Rules 0 49970 49970 40000 1 49969 49969 40000 2 49969 49969 56616 3 49969 49969 56615 backup tree 49970 49970 56616 Total 249847 249847 249847 Total Partition size - Configured size = Available to allocate 249847 - 249847 = 0 hostname(config-partition)# reload Reallocating Rules Between Features for a Specific Memory Partition To set the rule allocation globally for all partitions, see the "Reallocating Rules Between Features" section on page A-8. Setting the rule allocation for a specific partition overrides the global setting. Guidelines Caution Failure to follow these guidelines might result in dropped access list configuration as well as other anomalies, including ACL tree corruption. • The target partition and rule allocation settings must be carefully calculated, planned, and preferably tested in a non-production environment prior to making the change to ensure that all existing contexts and rules can be accommodated. • When failover is used, both FWSMs need to be reloaded at the same time after making partition changes. Reloading both FWSMs causes an outage with no possibility for a zero-downtime reload. At no time should two FWSMs with a mismatched number of partitions or rule limits synchronize over failover. Detailed Steps To reallocate rules for a given partition, perform the following steps: Step 1 To view the total number of rules available per partition, the default values, current rule allocation, and the absolute maximum number of rules you can allocate per feature, enter the following command: hostname(config)# show resource rule partition [number] For example, the following display shows the maximum rules as 19219 for partition 0 (this is an example only, and might differ from the actual number of rules for your system): hostname(config)# show resource rule partition 0 Default Configured Absolute CLS Rule Limit Limit Max Policy NAT 384 384 833 ACL 14801 14801 14801 Filter 576 576 1152 Fixup 1537 1537 3074 Est Ctl 96 96 96 OL-20748-01 Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM 4-19
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