CLI Guide

Usage Information
The order option is relevant in the context of the Policy QoS feature only. For more information, refer to the
Quality of Service chapter of the Dell Networking OS Conguration Guide.
When the congured maximum threshold is exceeded, generation of logs is stopped. When the interval at which
ACL logs are congured to be recorded expires, the subsequent, fresh interval timer is started and the packet
count for that new interval commences from zero. If ACL logging was stopped previously because the congured
threshold is exceeded, it is re-enabled for this new interval.
If ACL logging is stopped because the congured 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 congure ACL logging only on ACLs that are applied to ingress interfaces; you cannot enable logging for ACLs
that are associated with egress interfaces.
You can activate ow-based monitoring for a monitoring session by entering the flow-based enable
command in the Monitor Session mode. When you enable this capability, trac with particular ows that are
traversing through the ingress and egress interfaces are examined and, appropriate ACLs can be applied in both
the ingress and egress direction. Flow-based monitoring conserves bandwidth by monitoring only specied trac
instead all trac on the interface. This feature is particularly useful when looking for malicious trac. It is available
for Layer 2 and Layer 3 ingress and egress trac. You may specify trac using standard or extended access-lists.
This mechanism copies all incoming or outgoing packets on one port and forwards (mirrors) them to another port.
The source port is the monitored port (MD) and the destination port is the monitoring port (MG).
permit
To congure a lter that matches the lter criteria, select an IPv6 protocol number, ICMP, IPv6, TCP, or UDP.
Syntax
permit {ipv6-protocol-number | icmp | ipv6 | tcp | udp} [count [byte]] [dscp
value] [order] [fragments] [log [interval minutes] [threshold-in-msgs [count]]
[monitor]
To remove this lter, you have two choices:
• Use the no seq sequence-number command syntax if you know the lter’s sequence number
•
Use the no permit {ipv6-protocol-number | icmp | ipv6 | tcp | udp} command
Parameters
ip-protocol-number Enter an IPv6 protocol number. The range is from 0 to 255.
icmp Enter the keyword icmp to lter internet Control Message Protocol version 6.
ipv6 Enter the keyword ipv6 to lter any internet Protocol version 6.
tcp Enter the keyword tcp to lter the Transmission Control protocol.
udp Enter the keyword udp to lter the User Datagram Protocol.
count (OPTIONAL) Enter the keyword count to count packets the lter processes.
byte (OPTIONAL) Enter the keyword byte to count bytes the lter processes.
dscp (OPTIONAL) Enter the keyword dcsp to match to the IP DCSCP values.
order (OPTIONAL) Enter the keyword order to specify the QoS priority for the ACL entry. The
range is from 0 to 254 (where 0 is the highest priority and 254 is the lowest; lower-order
numbers have a higher priority). If you do not use the keyword order, the ACLs have the
lowest order by default (255).
fragments Enter the keyword fragments to use ACLs to control packet fragments.
Access Control Lists (ACL) 255