traffic on the interface. This feature is particularly useful when looking for malicious traffic. It is available for Layer 2and Layer 3 ingress and egress traffic. You may specify traffic using standard or extended access-lists. Thismechanism copies all incoming or outgoing packets on one port and forwards (mirrors) them to another port. Thesource port is the monitored port (MD) and the destination port is the monitoring port (MG).Related Commands • ip access-list extended — create an extended ACL.• permit tcp — assign a permit filter for TCP packets.• permit udp — assign a permit filter for UDP packets.permit (for Standard MAC ACLs)To forward packets from a specific source MAC address, configure a filter.Syntax permit {any | mac-source-address [mac-source-address-mask]} [count [byte]] |[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.• Use the no permit {any | mac-source-address mac-source-address-mask} command.Parameters log (OPTIONAL) Enter the keyword log to enable the triggering of ACL log messages.threshold-in msgscount(OPTIONAL) Enter the threshold-in-msgs keyword followed by a value to indicatethe maximum number of ACL logs that can be generated, exceeding which the generationof ACL logs is terminated with the seq, permit, or deny commands. The thresholdrange is from 1 to 100.interval minutes (OPTIONAL) Enter the keyword interval followed by the time period in minutes atwhich ACL logs must be generated. The interval range is from 1 to 10 minutes.monitor (OPTIONAL) Enter the keyword monitor when the rule is describing the traffic that youwant to monitor and the ACL in which you are creating the rule is applied to themonitored interface.Defaults 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 5 minutes. By default, flow-based monitoring is notenabled.Command History This guide is platform-specific. For command information about other platforms, see the relevant Dell NetworkingOS Command Line Reference Guide.Version Description9.10(0.0) Introduced on the S6100.9.8(1.0) Introduced on the Z9100–ON.9.8(0.0P5) Introduced on the S4048-ON.9.8(0.0P2) Introduced on the S3048-ON.9.7(0.0) Introduced on the S6000–ON.Access Control Lists (ACL) 305
