Command Line Reference Guide

Version Description
8.3.7.0 Introduced on the S4810.
8.3.1.0 Add the DSCP value for ACL matching.
8.2.1.0 Allows ACL control of fragmented packets for IP (Layer 3)
ACLs.
8.1.1.0 Introduced on the E-Series ExaScale.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.5.1.0 Expanded to include the optional QoS order priority for the
ACL entry.
Usage
Information
Use the order option only when you use policy-based QoS on the switch. For
more information, refer to the Quality of Service chapter of 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 packets’ details.
Use the monitor option only when you are using flow-based monitoring. For
more information, refer to the Port Monitoring chapter of 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.
Related
Commands
deny tcp — assigns a filter to deny TCP packets.
deny udp — assigns a filter to deny UDP packets.
ip access-list extended — creates an extended ACL.
deny icmp
To drop all or specific internet control message protocol (ICMP) messages, configure a filter.
Z9500
Syntax
deny icmp {source–ip—address mask | any | host ip-address}
{destination mask | any | host ip-address} [log] [dscp] [[count
[bytes]] [order] [monitor] [fragments]
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)
221