Dell Z9500 Reference Manual page 231

Usage
Use the order option only when you use policy-based QoS on the switch. For
Information
more information, refer to the Quality of Service chapter in the Z9500
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 Z9500 Configuration
Guide.
By default, 10 ACL logs are generated if you do not specify the threshold explicitly.
The default frequency at which ACL logs are generated is five minutes. By default,
flow-based monitoring is not enabled.
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.
Example
An ACL rule with a TCP port range of 4000–8000 uses eight entries in the CAM.
Rule#
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
Example
An ACL rule with a TCP port lt 1023 uses only one entry in the CAM.
Rule# Data
1 0000000000000000 1111110000000000 0
Total Ports: 1024
Related
deny
Commands
deny udp
Access Control Lists (ACL)
NOTE: When ACL logging and byte counters are configured simultaneously,
byte counters may display an incorrect value. Configure packet counters with
logging instead.
Data
— assigns a filter to deny IP traffic.
— assigns a filter to deny UDP traffic.
Mask From To #Covered
Mask From To
1023 1024
#Covered
231