Dell C9010 Modular Chassis Switch EMC Networking Command-Line Reference Guide - Page 243

Usage Information Example Example Related Commands Version 7.6.1.0 7.5.1.0 6.5.1.0 Description Introduced on the S-Series. Introduced on the C-Series. Expanded to include the optional QoS order priority for the ACL entry. Use the order option only when you use policy-based QoS on the switch. For more information, refer to the Quality of Service chapter in the C9000 Configuration Guide. When you use the log option, the CP processor logs detail the packets that match. Depending on how many packets match the log entry and at what rate, the CP may become busy as it has to log these packet details. Use the monitor option only when you are using flow-based monitoring. For more information, refer to the Port Monitoring chapter in the C9000 Configuration Guide. NOTE: When ACL logging and byte counters are configured simultaneously, byte counters may display an incorrect value. Configure packet counters with logging instead. Most ACL rules require one entry in the CAM. However, rules with TCP and UDP port operators (for example, gt, lt or range) may require more than one entry. The range of ports is configured in the CAM based on bit mask boundaries; the space required depends on exactly what ports are included in the range. An ACL rule with a TCP port range of 4000-8000 uses eight entries in the CAM. Rule# Data Mask From To #Covered 1 0000111110100000 1111111111100000 4000 4031 32 2 0000111111000000 1111111111000000 4032 4095 64 3 0001000000000000 1111100000000000 4096 6143 2048 4 0001100000000000 1111110000000000 6144 7167 1024 5 0001110000000000 1111111000000000 7168 7679 512 6 0001111000000000 1111111100000000 7680 7935 256 7 0001111100000000 1111111111000000 7936 7999 64 8 0001111101000000 1111111111111111 8000 8000 1 Total Ports: 4001 An ACL rule with a TCP port lt 1023 uses only one entry in the CAM. Rule# Data Mask From To #Covered 1 0000000000000000 1111110000000000 0 1023 1024 Total Ports: 1024 deny - assigns a filter to deny IP traffic. deny tcp - assigns a filter to deny TCP traffic. ip access-list extended Configure an extended IP access list (IP ACL) based on IP addresses or protocols. C9000 Series Syntax ip access-list extended access-list-name [cpu-qos] To delete an access list, use the no ip access-list extended access-list-name [cpuqos] command. Access Control Lists (ACL) 243