Netgear XCM8810 Chassis User Manual - Page 337
ACL Counters—Shared and Dedicated, Policy-Based Routing
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NETGEAR 8800 User Manual Error: ACL install operation failed - conditions specified in rule "r1" cannot be satisfied by hardware on port 3:1 • UDF exceeded: This happens in the rare case that the two available user-defined fields are exceeded on a given chip. UDF fields are used to qualify conditions which are not natively supported by the hardware. Currently, these include: ICMP Type and ICMP Code. Error: ACL install operation failed - user-defined-field (UDF) hardware full for port 3:1 ACL Counters-Shared and Dedicated You can configure rule compression in ACLs to be either shared or dedicated. In the dedicated mode, ACL rules that have counters are assigned a separate rule space and the counter accurately shows the count of matching events. If the ACL with counter is applied to ports 1 and 2, and 10 packets ingress via port 1 and 20 packets ingress via port 2, the ACL counter value for ports 1 and 2 is 10 and 20 packets respectively. More space is used and the process is slower than shared. Dedicated is the default setting In the shared mode, ACL space is reused even with counters. ACL counters count packets ingressing via all ports in the whole unit. If the ACL with the counter is applied to ports 1 and 2, and 10 packets ingress via port 1, and 20 packets ingress via port 2, the ACL counter value is 30 each of ports 1 and 2 instead of 10 and 20. The process is faster-as fast as applying an ACL without the counters-and saves space. The shared/dedicated setting is global to the switch; that is, the option does not support setting some ACL rules with shared counters and some with dedicated counters. Use the following command to configure the shared or dedicated mode: configure access-list rule-compression port-counters [shared | dedicated] Use the following command to view the configuration: show access-list configuration The shared or dedicated mode does not affect any ACLs that have already been configured. Only ACLs entered after the command is entered are affected. To configure all ACLs in the shared mode, the command must be entered before any ACLs are configured or have been saved in the configuration when a switch is booted. Policy-Based Routing This section describes the following topics: • Layer 3 Policy-Based Redirect on page 338 • Layer 2 Policy-Based Redirect on page 339 • Policy-Based Redirection Redundancy on page 341 Chapter 13. ACLs | 337
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