new interval commences from zero. If ACL logging was stopped previously
because the configured threshold is exceeded, it is re-enabled for this new interval.
If ACL logging is stopped because the configured threshold is exceeded, it is re-
enabled after the logging interval period elapses. ACL logging is supported for
standard and extended IPv4 ACLs, IPv6 ACLs, and MAC ACLs. You can configure
ACL logging only on ACLs that are applied to ingress interfaces; you cannot enable
logging for ACLs that are associated with egress interfaces
Example
An ACL rule with a TCP port range of 4000–8000 uses eight entries in the CAM.
Dell# 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
Example
An ACL rule with a TCP port lt 1023 uses only one entry in the CAM.
Dell# Data Mask From To #Covered
1 0000000000000000 1111110000000000 0 1023 1024
Total Ports: 1024
Related
Commands
deny
— assigns a filter to deny IP traffic.
deny tcp
— assigns a filter to deny TCP traffic.
deny arp (for Extended MAC ACLs)
Configure an egress filter that drops ARP packets on egress ACL supported line cards. (For more
information, refer to your line card documentation).
Syntax
deny arp {
destination-mac-address mac-address-mask
| any} vlan
vlan-id
{
ip-address
| any | opcode code-
number
} [count [byte]]
[order] [log [interval
minutes
] [threshold-in-msgs [count]]
[monitor]
To remove this filter, you have two choices:
• Use the
no seq
sequence-number
command if you know the filter’s
sequence number.
Access Control Lists (ACL)
223
